Zone Forecast Product
Issued by NWS Riverton, WY

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889
FPUS55 KRIW 172139
ZFPRIW

Zone Forecast Product for Western and Central Wyoming
National Weather Service Riverton WY
238 PM MST Sun Dec 17 2017

WYZ020-181100-
Natrona County Lower Elevations-
Including the city of Casper
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Mostly sunny. Highs 30 to 34.
Southwest winds 15 to 20 mph with gusts to around 45 mph.
.TONIGHT...Windy. Mostly clear until early morning then becoming
partly cloudy. Lows 18 to 22. Southwest winds 20 to 30 mph.
.MONDAY...Windy. Partly cloudy. Highs 37 to 41. Southwest winds
20 to 30 mph.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows 21 to 25. Southwest winds around 15 mph.
.TUESDAY...Breezy. Partly cloudy. Highs around 40. Southwest
winds 15 to 20 mph.
.TUESDAY NIGHT...Breezy. Partly cloudy. Lows 27 to 31. Southwest
winds 15 to 20 mph.
.WEDNESDAY...Breezy. Partly cloudy in the morning, then mostly
cloudy with a 40 percent chance of snow in the afternoon. Highs
in the lower to mid 40s.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Moderate snow accumulations. Lows 9 to 13. Chance of
snow 70 percent.
.THURSDAY...Breezy. Much colder. Cloudy. Snow likely in the
morning. Areas of blowing snow in the morning. Highs around 14.
Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy in the evening then
clearing. Lows 2 below to 2 above zero.
.FRIDAY...Partly cloudy in the morning, then mostly cloudy with a
20 percent chance of snow in the afternoon. Highs around 17.
.FRIDAY NIGHT...Cloudy with a 30 percent chance of snow. Lows
2 below to 6 below zero. Wind chill readings 18 below to 28 below
zero.
.SATURDAY...Breezy. Mostly cloudy. A 20 percent chance of snow in
the morning. Highs around 8. Wind chill readings 16 below to
26 below zero.
.SATURDAY NIGHT...Partly cloudy. Lows 8 below to 12 below zero.
Wind chill readings 22 below to 32 below zero.
.SUNDAY...Partly cloudy. Highs 2 to 6. Wind chill readings
20 below to 30 below zero.

$$

WYZ017-181100-
Wind River Basin-
Including the cities of Riverton and Shoshoni
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly sunny. Highs around 30.
.TONIGHT...Breezy. Partly cloudy then becoming mostly clear late
in the evening then becoming partly cloudy. Areas of freezing fog
late in the evening. Lows 12 to 16. Southwest winds 15 to 25 mph.
.MONDAY...Breezy. Partly cloudy early in the morning then
becoming mostly cloudy. Highs around 37. Southwest winds 15 to
25 mph.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows around 19.
.TUESDAY...Partly cloudy. Highs around 38.
.TUESDAY NIGHT...Partly cloudy. Lows 21 to 25. Southwest winds
around 15 mph.
.WEDNESDAY...Partly cloudy. A 40 percent chance of snow in the
afternoon. Highs in the upper 30s.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows around 13. Chance of
snow 70 percent.
.THURSDAY...Much colder. Mostly cloudy. Areas of blowing snow in
the morning. Snow likely in the morning, then slight chance of
snow in the afternoon. Highs around 16. Chance of snow
60 percent.
.THURSDAY NIGHT...Colder. Mostly clear. Lows 2 below to 2 above
zero.
.FRIDAY...Partly cloudy. A 30 percent chance of snow in the
afternoon. Highs 16 to 20.
.FRIDAY NIGHT...Cloudy with a 30 percent chance of snow. Lows
4 below to zero. Wind chill readings 13 below to 23 below zero.
.SATURDAY...Colder. Mostly cloudy. A 20 percent chance of snow in
the morning. Highs around 8. Wind chill readings 12 below to
22 below zero.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 11 below to 15 below zero. Wind
chill readings 22 below to 32 below zero.
.SUNDAY...Partly cloudy. Highs 1 to 6. Lowest wind chill readings
20 below to 30 below zero in the morning.

$$

WYZ018-181100-
Lander Foothills-
Including the city of Lander
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly sunny. Highs around 32.
.TONIGHT...Partly cloudy then becoming mostly clear in the late
evening and early morning then becoming partly cloudy. Areas of
freezing fog late in the evening. Lows 14 to 18. South winds
around 15 mph early in the evening becoming south around 15 mph
after midnight.
.MONDAY...Partly cloudy early in the morning then becoming mostly
cloudy. Areas of freezing fog in the morning. Highs around 38.
South winds around 15 mph early in the morning.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows around 21.
.TUESDAY...Partly cloudy. Highs around 40.
.TUESDAY NIGHT...Partly cloudy. Lows 23 to 27. Southwest winds
around 15 mph.
.WEDNESDAY...Partly cloudy. A 40 percent chance of snow in the
afternoon. Highs in the lower 40s.
.WEDNESDAY NIGHT...Colder. Chance of snow in the evening, then
snow likely after midnight. Areas of blowing snow after midnight.
Light snow accumulations. Lows 12 to 16. Chance of snow
70 percent.
.THURSDAY...Much colder. Mostly cloudy. Areas of blowing snow in
the morning. Snow likely in the morning, then slight chance of
snow in the afternoon. Highs around 17. Chance of snow
60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy in the evening then
clearing. Lows zero to 5 above.
.FRIDAY...Partly cloudy. A 20 percent chance of snow in the
afternoon. Highs around 20.
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of snow.
Lows 2 below to 3 above zero.
.SATURDAY...Colder. Mostly cloudy. A 20 percent chance of snow in
the morning. Highs around 9.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 10 below to 15 below zero.
.SUNDAY...Partly cloudy. Highs around 4. Wind chill readings
14 below to 24 below zero.

$$

WYZ028-181100-
Rock Springs and Green River-
Including the cities of Rock Springs and Green River
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Mostly sunny. Highs 30 to 34. West
winds 15 to 20 mph with gusts to around 35 mph.
.TONIGHT...Breezy. Mostly clear until early morning then becoming
partly cloudy. Lows 14 to 18. West winds 15 to 20 mph.
.MONDAY...Breezy. Partly cloudy. Highs 36 to 40. West winds 15 to
25 mph.
.MONDAY NIGHT...Partly cloudy. Lows 17 to 21.
.TUESDAY...Partly cloudy. Highs 39 to 43.
.TUESDAY NIGHT...Partly cloudy. Lows 20 to 24.
.WEDNESDAY...Partly cloudy in the morning, then mostly cloudy
with a 40 percent chance of snow in the afternoon. Highs in the
lower 40s.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Light snow accumulations. Lows
11 to 15. Chance of snow 70 percent.
.THURSDAY...Colder, cloudy. Snow likely in the morning, then
slight chance of snow in the afternoon. Highs 18 to 22. Chance of
snow 60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy in the evening then
clearing. Lows 2 to 7.
.FRIDAY...Partly cloudy. Highs in the 20s.
.FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow.
Lows 2 to 7. Lowest wind chill readings 10 below to 20 below zero
after midnight.
.SATURDAY...Mostly cloudy with a 20 percent chance of snow in the
morning, then partly cloudy in the afternoon. Highs 13 to 18.
Lowest wind chill readings 10 below to 20 below zero in the
morning.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 6 below to 11 below zero. Lowest
wind chill readings 25 below to 35 below zero after midnight.
.SUNDAY...Partly cloudy. Highs 9 to 13. Lowest wind chill
readings 19 below to 29 below zero in the morning.

$$

WYZ013-181100-
Jackson Hole-
Including the city of Jackson
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Partly cloudy. Highs 22 to 26.
.TONIGHT...Mostly cloudy with scattered snow showers. Areas of
freezing fog late in the evening. Lows 10 to 14. South winds
around 15 mph in the late evening and overnight. Chance of
precipitation 30 percent.
.MONDAY...Areas of freezing fog in the morning. Cloudy with
scattered snow showers. Highs around 29. South winds around
15 mph. Chance of precipitation 40 percent.
.MONDAY NIGHT...Cloudy with scattered snow showers. Lows around
19. Chance of snow 40 percent.
.TUESDAY...Mostly cloudy with isolated snow showers. Highs around
34. Chance of snow 20 percent.
.TUESDAY NIGHT...Mostly cloudy with isolated snow showers. Lows
20 to 24. Chance of snow 20 percent.
.WEDNESDAY...Scattered snow showers in the morning, then snow
likely in the afternoon. Light snow accumulations. Highs in the
lower to mid 30s. Chance of snow 60 percent.
.WEDNESDAY NIGHT...Colder. Cloudy with snow likely. Light snow
accumulations. Lows 10 to 15. Chance of snow 60 percent.
.THURSDAY...Colder. Mostly cloudy with a 30 percent chance of
snow in the morning, then partly cloudy in the afternoon. Highs
around 17.
.THURSDAY NIGHT...Colder. Partly cloudy. Lows 2 to 7.
.FRIDAY...Cloudy with a 50 percent chance of snow. Highs 16 to
20.
.FRIDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
zero to 5 above.
.SATURDAY...Mostly cloudy with a 20 percent chance of snow in the
morning, then partly cloudy in the afternoon. Highs 10 to 14.
Lowest wind chill readings 10 below to 20 below zero in the
morning.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 7 below to 12 below
zero.
.SUNDAY...Partly cloudy. Highs 2 to 6. Lowest wind chill readings
17 below to 27 below zero in the morning.

$$

WYZ003-181100-
Cody Foothills-
Including the cities of Cody and Meeteetse
238 PM MST Sun Dec 17 2017

...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 AM MST
MONDAY...

.LATE THIS AFTERNOON...Breezy. Partly cloudy. Highs 30 to 34.
Southwest winds 15 to 25 mph with gusts to around 55 mph.
.TONIGHT...Windy. Partly cloudy until early morning then becoming
mostly cloudy. Lows 21 to 25. Southwest winds 20 to 30 mph.
.MONDAY...Windy. Not as cold. Mostly cloudy. Highs 39 to 43. West
winds 25 to 35 mph.
.MONDAY NIGHT...Partly cloudy. Lows 24 to 29. Southwest winds
around 15 mph until early morning.
.TUESDAY...Partly cloudy. Highs 42 to 46. Southwest winds around
15 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 27 to 32. Southwest winds
around 15 mph.
.WEDNESDAY...Partly cloudy in the morning, then mostly cloudy
with chance of snow, possibly mixed with rain in the afternoon.
Highs near 40. Chance of precipitation 30 percent.
.WEDNESDAY NIGHT...Breezy, colder, cloudy. Chance of snow in the
evening, then snow likely after midnight. Areas of blowing snow
after midnight. Light snow accumulations. Lows 12 to 16. Chance
of snow 60 percent.
.THURSDAY...Breezy, colder. Areas of blowing snow in the morning.
Mostly cloudy with a 30 percent chance of snow in the morning,
then mostly sunny in the afternoon. Highs 17 to 21.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows 7 to 12.
.FRIDAY...Breezy. Mostly cloudy with a 40 percent chance of snow.
Highs 18 to 22.
.FRIDAY NIGHT...Breezy, colder. Cloudy with a 40 percent chance
of snow. Lows 1 below to 4 above zero. Wind chill readings
13 below to 23 below zero.
.SATURDAY...Breezy. Mostly cloudy. Highs 10 to 15. Wind chill
readings 10 below to 20 below zero.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows 3 below to 8 below zero.
.SUNDAY...Partly cloudy. Highs 9 to 13. Wind chill readings
13 below to 23 below zero.

$$

WYZ004-181100-
North Big Horn Basin-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Partly cloudy. Highs around 33. Southeast
winds around 15 mph with gusts to around 35 mph.
.TONIGHT...Partly cloudy until early morning then becoming mostly
cloudy. Areas of freezing fog early in the morning. Lows 17 to
21. Southeast winds around 15 mph.
.MONDAY...Breezy. Mostly cloudy. Areas of freezing fog early in
the morning. Highs around 40. South winds 15 to 20 mph.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows 19 to 24.
.TUESDAY...Mostly cloudy. Highs around 40.
.TUESDAY NIGHT...Mostly cloudy. Lows 23 to 27.
.WEDNESDAY...Mostly cloudy. Chance of snow, possibly mixed with
rain in the afternoon. Highs in the lower 40s. Chance of
precipitation 30 percent.
.WEDNESDAY NIGHT...Windy, colder. Cloudy with a 50 percent chance
of snow. Areas of blowing snow after midnight. Lows 12 to 16.
.THURSDAY...Breezy, colder. Areas of blowing snow in the morning.
Mostly cloudy with a 30 percent chance of snow in the morning,
then partly cloudy in the afternoon. Highs in the lower 20s.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows 5 to 9.
.FRIDAY...Breezy. Mostly cloudy with a 30 percent chance of snow.
Highs 19 to 23.
.FRIDAY NIGHT...Breezy. Cloudy with a 30 percent chance of snow.
Lows around 2.
.SATURDAY...Mostly cloudy. Highs 12 to 16.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows 3 below to 7 below zero.
.SUNDAY...Partly cloudy. Highs 9 to 13. Wind chill readings
11 below to 21 below zero.

$$

WYZ006-181100-
Southeast Big Horn Basin-
Including the city of Worland
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Partly cloudy. Highs around 32.
.TONIGHT...Partly cloudy. Areas of freezing fog late in the
evening. Lows 13 to 17.
.MONDAY...Partly cloudy early in the morning then becoming mostly
cloudy. Highs around 39. South winds around 15 mph early in the
morning.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows 17 to 21.
.TUESDAY...Partly cloudy. Highs around 40.
.TUESDAY NIGHT...Mostly cloudy. Lows 22 to 26.
.WEDNESDAY...Mostly cloudy. A 40 percent chance of snow in the
afternoon. Highs in the lower 40s.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows around 13. Chance of
snow 60 percent.
.THURSDAY...Breezy. Much colder. Cloudy in the morning then
becoming partly cloudy. Areas of blowing snow in the morning. A
40 percent chance of snow. Highs 16 to 20.
.THURSDAY NIGHT...Colder. Mostly clear in the evening then
becoming partly cloudy. Lows 1 to 5.
.FRIDAY...Partly cloudy in the morning, then mostly cloudy with a
30 percent chance of snow in the afternoon. Highs 18 to 22.
.FRIDAY NIGHT...Cloudy with a 30 percent chance of snow. Lows
around 1. Lowest wind chill readings 11 below to 21 below zero
after midnight.
.SATURDAY...Mostly cloudy. Highs 10 to 15.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 6 below to 10 below zero.
.SUNDAY...Partly cloudy. Highs 6 to 11. Wind chill readings
14 below to 24 below zero.

$$

WYZ005-181100-
Southwest Big Horn Basin-
Including the city of Thermopolis
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly sunny. Highs around 31.
.TONIGHT...Partly cloudy. Lows 13 to 18. South winds around
15 mph after midnight.
.MONDAY...Partly cloudy early in the morning then becoming mostly
cloudy. Highs around 38. Southwest winds around 15 mph in the
morning.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows 17 to 21.
.TUESDAY...Partly cloudy. Highs around 39.
.TUESDAY NIGHT...Partly cloudy. Lows 21 to 25.
.WEDNESDAY...Partly cloudy. A 40 percent chance of snow in the
afternoon. Highs around 40.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows 11 to 15. Chance of snow
60 percent.
.THURSDAY...Breezy. Much colder. Areas of blowing snow in the
morning. Cloudy with a 40 percent chance of snow in the morning,
then partly cloudy in the afternoon. Highs around 17.
.THURSDAY NIGHT...Colder. Mostly clear in the evening then
becoming partly cloudy. Lows 1 below to 4 above zero.
.FRIDAY...Partly cloudy in the morning then becoming mostly
cloudy. A 30 percent chance of snow. Highs around 19.
.FRIDAY NIGHT...Cloudy with a 30 percent chance of snow. Lows
4 below to zero. Wind chill readings 12 below to 22 below zero.
.SATURDAY...Mostly cloudy. Highs around 11. Wind chill readings
10 below to 20 below zero.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 8 below to 13 below zero.
.SUNDAY...Partly cloudy. Highs 5 to 9. Wind chill readings
14 below to 24 below zero.

$$

WYZ023-181100-
Star Valley-
Including the cities of Afton, Alpine, Star Valley Ranch,
and Thayne
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Partly cloudy. Highs around 25.
.TONIGHT...Partly cloudy, then mostly cloudy with scattered snow
showers early in the morning. Areas of freezing fog late in the
evening. Lows 10 to 14. Chance of precipitation 30 percent.
.MONDAY...Areas of freezing fog in the morning. Cloudy with
scattered snow showers. Highs around 30. Chance of precipitation
30 percent.
.MONDAY NIGHT...Mostly cloudy with isolated snow showers. Lows
14 to 18. Chance of snow 20 percent.
.TUESDAY...Mostly cloudy. Highs around 37.
.TUESDAY NIGHT...Mostly cloudy. Lows 20 to 24.
.WEDNESDAY...Cloudy. Scattered snow showers in the morning, then
chance of snow, possibly mixed with rain in the afternoon. Highs
in the mid 30s. Chance of precipitation 40 percent.
.WEDNESDAY NIGHT...Colder, cloudy. Chance of snow in the evening,
then snow likely after midnight. Light snow accumulations. Lows
12 to 16. Chance of snow 60 percent.
.THURSDAY...Colder. Mostly cloudy with a 30 percent chance of
snow in the morning, then partly cloudy in the afternoon. Highs
around 17.
.THURSDAY NIGHT...Colder. Mostly clear in the evening then
becoming partly cloudy. Lows zero to 4 above.
.FRIDAY...Mostly cloudy with a 40 percent chance of snow. Highs
around 20.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow.
Lows 3 to 7.
.SATURDAY...Mostly cloudy with a 20 percent chance of snow in the
morning, then partly cloudy in the afternoon. Highs around 15.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 7 below to 12 below
zero.
.SUNDAY...Partly cloudy. Highs around 6. Wind chill readings
12 below to 22 below zero.

$$

WYZ025-181100-
Upper Green River Basin Foothills-
Including the city of Pinedale
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Partly cloudy. Highs 24 to 28.
Northwest winds 15 to 20 mph.
.TONIGHT...Breezy. Partly cloudy. Lows 9 to 13. North winds 15 to
20 mph.
.MONDAY...Patchy freezing fog in the morning. Mostly cloudy with
scattered snow showers. Highs around 31. North winds around
15 mph early in the morning. Chance of precipitation 30 percent.
.MONDAY NIGHT...Mostly cloudy with scattered snow showers. Lows
around 15. Chance of snow 30 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs around 34.
.TUESDAY NIGHT...Partly cloudy. Lows 14 to 18.
.WEDNESDAY...Cloudy. Scattered snow showers in the morning, then
chance of snow in the afternoon. Highs in the mid 30s. Chance of
snow 40 percent.
.WEDNESDAY NIGHT...Snow likely. Light snow accumulations. Lows
11 to 15. Chance of snow 60 percent.
.THURSDAY...Colder. Cloudy with snow likely in the morning, then
partly cloudy with slight chance of snow in the afternoon. Highs
in the lower 20s. Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Mostly clear in the evening then
becoming partly cloudy. Lows 1 to 6.
.FRIDAY...Mostly cloudy with a 40 percent chance of snow. Highs
around 20.
.FRIDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
1 below to 3 above zero.
.SATURDAY...Mostly cloudy with a 20 percent chance of snow in the
morning, then partly cloudy in the afternoon. Highs around 14.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 6 below to 11 below
zero. Lowest wind chill readings 23 below to 33 below zero after
midnight.
.SUNDAY...Partly cloudy. Highs around 7. Wind chill readings
17 below to 27 below zero.

$$

WYZ026-181100-
Upper Green River Basin-
Including the cities of La Barge, Big Piney, and Farson
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Partly cloudy. Highs 27 to 31. Northwest
winds around 15 mph with gusts to around 30 mph.
.TONIGHT...Partly cloudy. Areas of freezing fog late in the
evening. Lows around 9 above. Northwest winds around 15 mph.
.MONDAY...Partly cloudy in the morning then becoming mostly
cloudy. Areas of freezing fog in the morning. Highs 32 to 36.
Northwest winds around 15 mph until late afternoon.
.MONDAY NIGHT...Mostly cloudy until early morning then becoming
partly cloudy. Lows around 13.
.TUESDAY...Partly cloudy. Highs 35 to 40.
.TUESDAY NIGHT...Partly cloudy. Lows 13 to 17.
.WEDNESDAY...Mostly cloudy. Chance of snow in the afternoon.
Highs in the mid 30s to lower 40s. Chance of snow 50 percent.
.WEDNESDAY NIGHT...Chance of snow in the evening, then snow
likely after midnight. Light snow accumulations. Lows 9 to 13.
Chance of snow 60 percent.
.THURSDAY...Colder. Mostly cloudy. Snow likely in the morning,
then slight chance of snow in the afternoon. Highs 19 to 24.
Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy in the evening then
clearing. Lows 4 below to 1 above zero. Wind chill readings
13 below to 23 below zero.
.FRIDAY...Partly cloudy in the morning then becoming mostly
cloudy. A 20 percent chance of snow. Highs 20 to 25.
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of snow.
Lows 1 below to 6 below zero. Lowest wind chill readings 16 below
to 26 below zero after midnight.
.SATURDAY...Mostly cloudy with a 20 percent chance of snow in the
morning, then partly cloudy in the afternoon. Highs 12 to 17.
Wind chill readings 15 below to 25 below zero.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 13 below to
18 below zero. Lowest wind chill readings 31 below to 41 below
zero after midnight.
.SUNDAY...Partly cloudy. Highs 6 to 11. Lowest wind chill
readings 25 below to 35 below zero in the morning.

$$

WYZ010-181100-
Northeast Johnson County-
Including the city of Buffalo
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly sunny. Highs around 36.
.TONIGHT...Breezy. Mostly clear in the evening then becoming
partly cloudy. Lows around 22. South winds 15 to 20 mph in the
late evening and overnight.
.MONDAY...Not as cool. Partly cloudy in the morning then becoming
mostly cloudy. Highs around 48. South winds around 15 mph in the
morning.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows around 23.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs around 44.
.TUESDAY NIGHT...Mostly cloudy. Lows around 30.
.WEDNESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs in the mid 40s.
.WEDNESDAY NIGHT...Very windy. Colder. Chance of snow in the
evening, then snow likely after midnight. Areas of blowing snow
after midnight. Light snow accumulations. Lows around 12. Chance
of snow 60 percent.
.THURSDAY...Windy. Much colder. Areas of blowing snow in the
morning. Cloudy with snow likely in the morning, then partly
cloudy with slight chance of snow in the afternoon. Highs around
17. Chance of snow 60 percent.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows around 6.
.FRIDAY...Breezy. Mostly cloudy with a 20 percent chance of snow.
Highs around 20.
.FRIDAY NIGHT...Breezy. Cloudy with a 20 percent chance of snow.
Lows around 3.
.SATURDAY...Breezy. Mostly cloudy. Highs 11 to 15. Wind chill
readings 10 below to 20 below zero.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows around 2 below. Wind chill readings 10 below
to 20 below zero.
.SUNDAY...Partly cloudy. Highs 10 to 14.

$$

WYZ011-181100-
Southeast Johnson County-
Including the city of Kaycee
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly sunny. Highs around 36. Southwest
winds around 15 mph with gusts to around 35 mph.
.TONIGHT...Breezy. Mostly clear in the evening then becoming
partly cloudy. Lows around 21. Southwest winds 15 to 25 mph.
.MONDAY...Breezy. Not as cool. Partly cloudy until late afternoon
then becoming mostly cloudy. Highs 43 to 47. Southwest winds
15 to 25 mph.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows around 24. Southwest winds around 15 mph
early in the evening.
.TUESDAY...Partly cloudy. Highs around 44. Southwest winds around
15 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows around 31. Southwest winds
around 15 mph.
.WEDNESDAY...Mostly cloudy. Highs in the mid 40s.
.WEDNESDAY NIGHT...Windy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows around 12. Chance of
snow 70 percent.
.THURSDAY...Windy. Much colder. Cloudy. Areas of blowing snow in
the morning. Snow likely in the morning, then slight chance of
snow in the afternoon. Highs around 17. Chance of snow
60 percent.
.THURSDAY NIGHT...Partly cloudy in the evening then clearing.
Lows 3 to 7.
.FRIDAY...Breezy. Partly cloudy in the morning then becoming
mostly cloudy. A 20 percent chance of snow. Highs in the lower
20s.
.FRIDAY NIGHT...Breezy. Cloudy with a 20 percent chance of snow.
Lows 1 below to 3 above zero. Wind chill readings 10 below to
20 below zero.
.SATURDAY...Breezy. Mostly cloudy. Highs 10 to 14. Wind chill
readings 10 below to 20 below zero.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows 3 below to 7 below zero. Wind chill readings
14 below to 24 below zero.
.SUNDAY...Partly cloudy. Highs 8 to 12. Wind chill readings
13 below to 23 below zero.

$$

WYZ027-181100-
South Lincoln County-
Including the cities of Kemmerer and Cokeville
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Partly cloudy. Highs 26 to 30.
Northwest winds 15 to 20 mph with gusts to around 35 mph.
.TONIGHT...Breezy. Partly cloudy. Areas of freezing fog late in
the evening. Lows 10 to 14. West winds 15 to 20 mph.
.MONDAY...Breezy. Partly cloudy. Areas of freezing fog early in
the morning. Highs 32 to 36. West winds 15 to 20 mph.
.MONDAY NIGHT...Partly cloudy. Lows 13 to 17.
.TUESDAY...Partly cloudy. Highs 37 to 41.
.TUESDAY NIGHT...Partly cloudy. Lows 17 to 21.
.WEDNESDAY...Mostly cloudy. Chance of snow, possibly mixed with
rain in the afternoon. Highs in the mid 30s to lower 40s. Chance
of precipitation 30 percent.
.WEDNESDAY NIGHT...Breezy, cloudy. Chance of snow in the evening,
then snow likely after midnight. Lows 11 to 15. Chance of snow
60 percent.
.THURSDAY...Colder. Mostly cloudy. Snow likely in the morning,
then slight chance of snow in the afternoon. Highs 17 to 22.
Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy in the evening then
clearing. Lows zero to 5 above.
.FRIDAY...Breezy. Partly cloudy in the morning, then mostly
cloudy with a 20 percent chance of snow in the afternoon. Highs
in the lower to mid 20s.
.FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow.
Lows 1 to 5.
.SATURDAY...Partly cloudy. A 20 percent chance of snow in the
morning. Highs around 16.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 6 below to 11 below
zero.
.SUNDAY...Partly cloudy. Highs 7 to 11. Lowest wind chill
readings 15 below to 25 below zero in the morning.

$$

WYZ016-181100-
Upper Wind River Basin-
Including the city of Dubois
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Windy. Partly cloudy. Highs 29 to 34.
Northwest winds 20 to 30 mph with gusts to around 50 mph.
.TONIGHT...Very windy. Partly cloudy. Lows 16 to 20. Northwest
winds 30 to 40 mph.
.MONDAY...Windy. Mostly cloudy early in the morning then becoming
partly cloudy. Highs 35 to 40. Northwest winds 25 to 35 mph.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows around 21. West winds
15 to 20 mph.
.TUESDAY...Breezy. Partly cloudy. Highs 38 to 42. West winds
15 to 20 mph.
.TUESDAY NIGHT...Partly cloudy. Lows around 23. West winds around
15 mph.
.WEDNESDAY...Breezy. Mostly cloudy. Chance of snow, possibly
mixed with rain in the afternoon. Highs in the mid 30s to lower
40s. Chance of precipitation 30 percent.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows 13 to 17. Chance of snow
60 percent.
.THURSDAY...Breezy, colder. Areas of blowing snow in the morning.
Cloudy with snow likely in the morning, then partly cloudy in the
afternoon. Highs around 20. Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Mostly clear in the evening then
becoming partly cloudy. Lows 5 to 9.
.FRIDAY...Breezy. Partly cloudy in the morning then becoming
mostly cloudy. A 40 percent chance of snow. Highs in the lower
20s.
.FRIDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
zero to 5 above. Wind chill readings 10 below to 20 below zero.
.SATURDAY...Breezy, colder. Mostly cloudy with a 20 percent
chance of snow in the morning, then partly cloudy in the
afternoon. Highs around 11.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 5 below to 10 below zero. Wind chill
readings 19 below to 29 below zero.
.SUNDAY...Partly cloudy. Highs around 9. Wind chill readings
15 below to 25 below zero.

$$

WYZ001-181100-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly cloudy with scattered snow showers.
Highs 16 to 22. Southwest winds around 15 mph with gusts to
around 35 mph. Chance of snow 30 percent.
.TONIGHT...Breezy. Cloudy with scattered snow showers. Lows 9 to
15. Southwest winds 15 to 25 mph. Chance of snow 30 percent.
.MONDAY...Breezy. Cloudy with scattered snow showers. Highs 21 to
27. Southwest winds 15 to 25 mph. Chance of snow 40 percent.
.MONDAY NIGHT...Cloudy with scattered snow showers. Snow
accumulation of 1 to 2 inches. Lows 15 to 21. Southwest winds
around 15 mph. Chance of snow 50 percent.
.TUESDAY...Cloudy with scattered snow showers. Highs 26 to 32.
Southwest winds around 15 mph. Chance of snow 40 percent.
.TUESDAY NIGHT...Cloudy with scattered snow showers. Lows 18 to
24. Southwest winds around 15 mph. Chance of snow 40 percent.
.WEDNESDAY...Numerous snow showers in the morning, then snow
likely in the afternoon. Light snow accumulations. Highs 25 to
31. Chance of snow 70 percent.
.WEDNESDAY NIGHT...Colder, cloudy. Snow likely in the evening,
then chance of snow after midnight. Light snow accumulations.
Lows 3 to 9. Chance of snow 60 percent.
.THURSDAY...Colder. Mostly cloudy with a 20 percent chance of
snow in the morning, then mostly sunny in the afternoon. Highs
10 to 16.
.THURSDAY NIGHT...Partly cloudy. Lows 1 below to 5 above zero.
.FRIDAY...Cloudy with a 50 percent chance of snow. Highs 10 to
16.
.FRIDAY NIGHT...Colder. Cloudy with a 40 percent chance of snow.
Lows 3 below to 9 below zero. Wind chill readings 20 below to
30 below zero.
.SATURDAY...Mostly cloudy. Highs 3 to 9. Wind chill readings
19 below to 29 below zero.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 8 below to 16 below
zero. Wind chill readings 29 below to 39 below zero.
.SUNDAY...Partly cloudy. Highs 1 below to 5 above zero. Wind
chill readings 23 below to 33 below zero.

$$

WYZ029-181100-
Flaming Gorge-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly sunny. Highs 31 to 36. West winds
around 15 mph with gusts to around 30 mph.
.TONIGHT...Mostly clear until early morning then becoming partly
cloudy. Areas of freezing fog late in the evening. Lows around
17. West winds around 15 mph shifting to the southwest after
midnight.
.MONDAY...Breezy. Partly cloudy. Areas of freezing fog in the
morning. Highs 37 to 42. West winds 15 to 20 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 21.
.TUESDAY...Partly cloudy. Highs 41 to 45.
.TUESDAY NIGHT...Partly cloudy. Lows around 24.
.WEDNESDAY...Partly cloudy in the morning, then mostly cloudy
with a 40 percent chance of snow in the afternoon. Highs 40 to
45.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Light snow accumulations. Lows
around 14. Chance of snow 70 percent.
.THURSDAY...Breezy. Much colder. Cloudy. Snow likely in the
morning, then chance of snow in the afternoon. Highs 17 to 22.
Chance of snow 60 percent.
.THURSDAY NIGHT...Partly cloudy in the evening then clearing.
Lows around 7.
.FRIDAY...Partly cloudy. A 20 percent chance of snow in the
afternoon. Highs 23 to 28.
.FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow.
Lows 6 to 10.
.SATURDAY...Mostly cloudy in the morning then becoming partly
cloudy. A 20 percent chance of snow. Highs 14 to 19.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 4 below to 8 below zero.
.SUNDAY...Partly cloudy. Highs 9 to 14. Wind chill readings
13 below to 23 below zero.

$$

WYZ022-181100-
Casper Mountain-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Mostly sunny. Highs 25 to 31.
Southwest winds 15 to 25 mph with gusts to around 40 mph.
.TONIGHT...Windy. Mostly clear until early morning then becoming
partly cloudy. Lows 16 to 22. Southwest winds 20 to 30 mph.
.MONDAY...Windy. Mostly sunny early in the morning then becoming
partly cloudy. Highs 31 to 37. Southwest winds 20 to 30 mph.
.MONDAY NIGHT...Breezy. Partly cloudy in the evening then
clearing. Lows 20 to 26. Southwest winds 15 to 20 mph.
.TUESDAY...Breezy. Partly cloudy in the morning then clearing.
Highs 33 to 39. Southwest winds 15 to 20 mph.
.TUESDAY NIGHT...Breezy. Partly cloudy. Lows 26 to 32. Southwest
winds 15 to 25 mph.
.WEDNESDAY...Breezy. Partly cloudy in the morning, then mostly
cloudy with a 30 percent chance of snow in the afternoon. Highs
36 to 42.
.WEDNESDAY NIGHT...Breezy. Much colder. Chance of snow in the
evening, then snow after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows 8 to 14. Chance of snow
80 percent.
.THURSDAY...Breezy. Much colder. Cloudy. Areas of blowing snow in
the morning. Snow likely in the morning, then chance of snow in
the afternoon. Highs 8 to 14. Chance of snow 70 percent.
.THURSDAY NIGHT...Colder. Mostly cloudy in the evening then
clearing. Lows 1 below to 5 above zero.
.FRIDAY...Partly cloudy in the morning then becoming mostly
cloudy. A 30 percent chance of snow. Highs 12 to 18.
.FRIDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
6 below to zero. Lowest wind chill readings 12 below to 22 below
zero after midnight.
.SATURDAY...Cloudy with a 30 percent chance of snow. Highs 2 to
8. Wind chill readings 13 below to 23 below zero.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 8 below to 14 below zero. Wind chill
readings 22 below to 32 below zero.
.SUNDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs 3 below to 3 above zero. Wind chill readings
21 below to 31 below zero.

$$

WYZ002-181100-
Absaroka Mountains-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Partly cloudy with scattered snow
showers. Highs 20 to 28. West winds 15 to 25 mph with gusts to
around 50 mph. Chance of snow 30 percent.
.TONIGHT...Windy. Mostly cloudy with scattered snow showers.
Areas of blowing snow late in the evening. Lows 12 to 20. West
winds 25 to 35 mph. Chance of snow 40 percent.
.MONDAY...Windy. Mostly cloudy with scattered snow showers. Areas
of blowing snow. Highs 23 to 33. West winds 25 to 35 mph. Chance
of snow 40 percent.
.MONDAY NIGHT...Breezy. Mostly cloudy with scattered snow
showers. Lows 17 to 23. West winds 15 to 25 mph. Chance of snow
40 percent.
.TUESDAY...Breezy. Mostly cloudy with scattered snow showers.
Areas of blowing snow in the afternoon. Highs 26 to 36. West
winds 15 to 25 mph. Chance of snow 30 percent.
.TUESDAY NIGHT...Breezy. Mostly cloudy. Lows 18 to 26. West winds
15 to 25 mph.
.WEDNESDAY...Breezy, cloudy. Scattered snow showers in the
morning, then snow likely in the afternoon. Light snow
accumulations. Highs 24 to 34. Chance of snow 60 percent.
.WEDNESDAY NIGHT...Breezy, colder. Snow likely. Light snow
accumulations. Lows 7 to 13. Chance of snow 70 percent. Wind
chill readings 11 below to 21 below zero.
.THURSDAY...Breezy, colder. Cloudy in the morning then becoming
partly cloudy. A 50 percent chance of snow. Highs 11 to 17. Wind
chill readings 10 below to 20 below zero.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows 2 to 8. Wind chill readings 14 below to
24 below zero.
.FRIDAY...Breezy. Mostly cloudy with a 50 percent chance of snow.
Highs 10 to 18. Wind chill readings 14 below to 24 below zero.
.FRIDAY NIGHT...Colder. Cloudy with a 50 percent chance of snow.
Lows 7 below to 1 above zero. Wind chill readings 26 below to
36 below zero.
.SATURDAY...Breezy. Mostly cloudy with a 20 percent chance of
snow. Highs 1 to 9. Wind chill readings 24 below to 34 below
zero.
.SATURDAY NIGHT...Breezy. Mostly cloudy in the evening then
becoming partly cloudy. Lows 4 below to 12 below zero. Wind chill
readings 29 below to 39 below zero.
.SUNDAY...Breezy. Partly cloudy. Highs 1 below to 7 above zero.
Wind chill readings 26 below to 36 below zero.

$$

WYZ007-181100-
Owl Creek and Bridger Mountains-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly sunny. Highs 25 to 31. Southwest
winds around 15 mph with gusts to around 30 mph.
.TONIGHT...Breezy. Partly cloudy. Lows around 18. Southwest winds
15 to 20 mph.
.MONDAY...Breezy. Not as cold. Partly cloudy early in the morning
then becoming mostly cloudy. Highs 33 to 39. Southwest winds
15 to 20 mph.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows around 22.
.TUESDAY...Partly cloudy. Highs 34 to 40. Southwest winds around
15 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 22 to 28. Southwest winds
around 15 mph.
.WEDNESDAY...Partly cloudy. A 50 percent chance of snow in the
afternoon. Highs 34 to 40.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Moderate snow accumulations. Lows 10 to 16. Chance of
snow 70 percent.
.THURSDAY...Breezy, colder. Areas of blowing snow in the morning.
Cloudy with snow likely in the morning, then partly cloudy with
slight chance of snow in the afternoon. Highs 12 to 18. Chance of
snow 60 percent.
.THURSDAY NIGHT...Colder. Mostly clear in the evening then
becoming partly cloudy. Lows 2 to 8.
.FRIDAY...Partly cloudy in the morning then becoming mostly
cloudy. A 30 percent chance of snow. Highs 14 to 20.
.FRIDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
3 below to 3 above zero. Wind chill readings 16 below to 26 below
zero.
.SATURDAY...Mostly cloudy. A 20 percent chance of snow in the
morning. Highs 4 to 10. Wind chill readings 13 below to 23 below
zero.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 4 below to 10 below zero. Wind chill
readings 20 below to 30 below zero.
.SUNDAY...Partly cloudy. Highs 2 to 8. Wind chill readings
17 below to 27 below zero.

$$

WYZ008-181100-
Bighorn Mountains West-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Partly cloudy. Highs 21 to 29. Southwest
winds around 15 mph with gusts to around 40 mph.
.TONIGHT...Breezy. Partly cloudy. Lows 15 to 21. Northeast winds
around 15 mph shifting to the northwest early in the morning.
.MONDAY...Breezy. Not as cold. Partly cloudy early in the morning
then becoming mostly cloudy. Highs 30 to 38. West winds 15 to
20 mph.
.MONDAY NIGHT...Partly cloudy. Lows 18 to 24. West winds around
15 mph early in the evening.
.TUESDAY...Partly cloudy. Highs 30 to 38. Southwest winds around
15 mph in the afternoon.
.TUESDAY NIGHT...Mostly cloudy. Lows 23 to 29. Southwest winds
around 15 mph.
.WEDNESDAY...Mostly cloudy. Chance of snow in the afternoon.
Highs 29 to 39. Temperatures falling into the lower 20s in the
afternoon. Chance of snow 40 percent. Lowest wind chill readings
10 below to 20 below zero in the afternoon.
.WEDNESDAY NIGHT...Windy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows 6 to 14. Chance of snow
70 percent. Wind chill readings 18 below to 28 below zero.
.THURSDAY...Breezy, colder. Areas of blowing snow in the morning.
Cloudy with snow likely in the morning, then partly cloudy with
slight chance of snow in the afternoon. Highs 8 to 16. Chance of
snow 60 percent. Wind chill readings 15 below to 25 below zero.
.THURSDAY NIGHT...Colder. Partly cloudy. Lows 1 below to 7 above
zero. Wind chill readings 18 below to 28 below zero.
.FRIDAY...Breezy. Partly cloudy in the morning then becoming
cloudy. A 40 percent chance of snow. Highs 8 to 16. Wind chill
readings 18 below to 28 below zero.
.FRIDAY NIGHT...Breezy, colder. Cloudy with a 40 percent chance
of snow. Lows 8 below to 2 above zero. Wind chill readings
29 below to 39 below zero.
.SATURDAY...Mostly cloudy with a 30 percent chance of snow. Highs
1 below to 7 above zero. Wind chill readings 27 below to 37 below
zero.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows 4 below to 12 below zero. Wind chill readings
33 below to 43 below zero.
.SUNDAY...Partly cloudy. Highs 3 below to 3 above zero. Wind
chill readings 31 below to 41 below zero.

$$

WYZ009-181100-
Bighorn Mountains Southeast-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Mostly sunny. Highs 23 to 31. West
winds 15 to 25 mph with gusts to around 45 mph.
.TONIGHT...Windy. Mostly clear in the evening then becoming
partly cloudy. Areas of blowing snow early in the morning. Lows
16 to 22. West winds 20 to 30 mph.
.MONDAY...Windy. Not as cold. Partly cloudy. Areas of blowing
snow early in the morning. Highs 32 to 40. West winds 20 to
30 mph.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows 19 to 25. West winds
15 to 20 mph.
.TUESDAY...Partly cloudy. Highs 32 to 40. West winds around
15 mph.
.TUESDAY NIGHT...Breezy. Mostly cloudy. Lows 24 to 30. West winds
15 to 20 mph.
.WEDNESDAY...Breezy. Partly cloudy in the morning, then mostly
cloudy with chance of snow in the afternoon. Highs 32 to 40.
Temperatures falling into the upper teens in the afternoon.
Chance of snow 40 percent. Lowest wind chill readings 10 below to
20 below zero in the afternoon.
.WEDNESDAY NIGHT...Windy. Much colder. Chance of snow in the
evening, then snow after midnight. Areas of blowing snow after
midnight. Moderate snow accumulations. Lows 6 to 12. Chance of
snow 80 percent. Wind chill readings 18 below to 28 below zero.
.THURSDAY...Breezy. Much colder. Mostly cloudy. Areas of blowing
snow in the morning. Snow likely in the morning, then slight
chance of snow in the afternoon. Highs 9 to 15. Chance of snow
60 percent. Wind chill readings 15 below to 25 below zero.
.THURSDAY NIGHT...Partly cloudy. Lows zero to 6 above. Wind chill
readings 18 below to 28 below zero.
.FRIDAY...Breezy. Partly cloudy in the morning then becoming
mostly cloudy. A 30 percent chance of snow. Highs 10 to 16. Wind
chill readings 20 below to 30 below zero.
.FRIDAY NIGHT...Breezy, colder. Cloudy with a 30 percent chance
of snow. Lows 8 below to zero. Wind chill readings 30 below to
40 below zero.
.SATURDAY...Breezy. Mostly cloudy with a 20 percent chance of
snow. Highs zero to 6 above. Wind chill readings 29 below to
39 below zero.
.SATURDAY NIGHT...Breezy. Mostly cloudy in the evening then
becoming partly cloudy. Lows 4 below to 10 below zero. Wind chill
readings 34 below to 44 below zero.
.SUNDAY...Breezy. Partly cloudy. Highs 1 below to 5 above zero.
Wind chill readings 31 below to 41 below zero.

$$

WYZ012-181100-
Teton and Gros Ventre Mountains-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Mostly cloudy with isolated snow showers.
Highs 17 to 23. West winds around 15 mph with gusts to around
35 mph. Chance of snow 20 percent.
.TONIGHT...Breezy. Mostly cloudy with scattered snow showers.
Lows 9 to 15. Southwest winds 15 to 20 mph. Chance of snow
30 percent.
.MONDAY...Breezy. Cloudy with scattered snow showers. Snow
accumulation around 1 inch. Highs 22 to 28. Southwest winds 15 to
20 mph. Chance of snow 50 percent.
.MONDAY NIGHT...Cloudy with scattered snow showers. Snow
accumulation around 1 inch. Total snow accumulation around
2 inches. Lows 15 to 21. Southwest winds around 15 mph. Chance of
snow 50 percent.
.TUESDAY...Mostly cloudy with scattered snow showers. Highs 27 to
33. Southwest winds around 15 mph. Chance of snow 30 percent.
.TUESDAY NIGHT...Mostly cloudy with scattered snow showers. Lows
18 to 24. Southwest winds around 15 mph. Chance of snow
30 percent.
.WEDNESDAY...Breezy. Numerous snow showers in the morning, then
snow likely in the afternoon. Light snow accumulations. Highs
25 to 31. Chance of snow 70 percent.
.WEDNESDAY NIGHT...Breezy, colder. Snow likely. Moderate snow
accumulations. Lows 9 to 15. Chance of snow 70 percent.
.THURSDAY...Colder. Cloudy with snow likely in the morning, then
partly cloudy in the afternoon. Highs 12 to 18. Chance of snow
60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy. Lows 1 to 7.
.FRIDAY...Cloudy with a 50 percent chance of snow. Highs 12 to
18.
.FRIDAY NIGHT...Cloudy with a 50 percent chance of snow. Lows
3 below to 5 above zero. Wind chill readings 15 below to 25 below
zero.
.SATURDAY...Mostly cloudy in the morning then becoming partly
cloudy. A 20 percent chance of snow. Highs 6 to 12. Wind chill
readings 14 below to 24 below zero.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 3 below to 11 below
zero.
.SUNDAY...Partly cloudy. Highs zero to 6 above. Wind chill
readings 20 below to 30 below zero.

$$

WYZ014-181100-
Wind River Mountains West-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Partly cloudy. Highs 20 to 26.
North winds 15 to 20 mph with gusts to around 40 mph.
.TONIGHT...Breezy. Partly cloudy. Scattered snow showers early in
the morning. Lows 9 to 15. Northwest winds 15 to 25 mph. Chance
of snow 30 percent.
.MONDAY...Breezy. Mostly cloudy with scattered snow showers.
Highs 23 to 31. West winds 15 to 25 mph. Chance of snow
40 percent.
.MONDAY NIGHT...Mostly cloudy with scattered snow showers. Lows
13 to 19. West winds around 15 mph. Chance of snow 40 percent.
.TUESDAY...Partly cloudy. Highs 25 to 33. West winds around
15 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 14 to 20. West winds around
15 mph.
.WEDNESDAY...Breezy, cloudy. Scattered snow showers in the
morning, then chance of snow in the afternoon. Light snow
accumulations. Highs 24 to 34. Chance of snow 50 percent.
.WEDNESDAY NIGHT...Colder, snow. Light snow accumulations. Lows
7 to 13. Chance of snow 80 percent.
.THURSDAY...Colder. Cloudy with snow likely in the morning, then
partly cloudy with slight chance of snow in the afternoon. Highs
11 to 17. Chance of snow 60 percent. Wind chill readings 12 below
to 22 below zero.
.THURSDAY NIGHT...Colder. Partly cloudy. Lows 1 below to 5 above
zero. Wind chill readings 14 below to 24 below zero.
.FRIDAY...Partly cloudy in the morning then becoming mostly
cloudy. A 40 percent chance of snow. Highs 10 to 18. Wind chill
readings 13 below to 23 below zero.
.FRIDAY NIGHT...Cloudy with a 50 percent chance of snow. Lows
6 below to zero. Wind chill readings 24 below to 34 below zero.
.SATURDAY...Mostly cloudy in the morning then becoming partly
cloudy. A 30 percent chance of snow. Highs 2 to 10. Wind chill
readings 26 below to 36 below zero.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 9 below to 15 below
zero. Wind chill readings 30 below to 40 below zero.
.SUNDAY...Partly cloudy. Highs 3 below to 3 above zero. Wind
chill readings 27 below to 37 below zero.

$$

WYZ015-181100-
Wind River Mountains East-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Mostly sunny. Highs 24 to 32. West
winds 15 to 20 mph with gusts to around 45 mph.
.TONIGHT...Windy. Partly cloudy, then scattered snow showers
early in the morning. Areas of blowing snow late in the evening.
Lows 12 to 18. West winds 15 to 20 mph increasing to 25 to 35 mph
after midnight. Chance of snow 30 percent.
.MONDAY...Very windy. Mostly cloudy with scattered snow showers.
Areas of blowing snow. Highs 24 to 34. West winds 30 to 40 mph.
Chance of snow 30 percent.
.MONDAY NIGHT...Breezy. Mostly cloudy until early morning then
becoming partly cloudy. Scattered snow showers. Lows 16 to 22.
West winds 15 to 25 mph. Chance of snow 30 percent.
.TUESDAY...Breezy. Partly cloudy. Areas of blowing snow in the
afternoon. Highs 26 to 36. West winds 15 to 25 mph.
.TUESDAY NIGHT...Breezy. Partly cloudy. Lows 17 to 25. West winds
15 to 25 mph.
.WEDNESDAY...Breezy, cloudy. Scattered snow showers in the
morning, then chance of snow in the afternoon. Highs 25 to 35.
Temperatures falling into the upper teens in the afternoon.
Chance of snow 40 percent.
.WEDNESDAY NIGHT...Breezy, colder, snow. Areas of blowing snow
after midnight. Moderate snow accumulations. Lows 6 to 14. Chance
of snow 80 percent. Wind chill readings 12 below to 22 below
zero.
.THURSDAY...Breezy, colder. Areas of blowing snow in the morning.
Cloudy with snow likely in the morning, then partly cloudy with
chance of snow in the afternoon. Highs 10 to 16. Chance of snow
60 percent. Wind chill readings 12 below to 22 below zero.
.THURSDAY NIGHT...Breezy. Partly cloudy. Lows 1 to 7. Wind chill
readings 14 below to 24 below zero.
.FRIDAY...Breezy. Partly cloudy in the morning then becoming
mostly cloudy. A 40 percent chance of snow. Highs 11 to 19. Wind
chill readings 17 below to 27 below zero.
.FRIDAY NIGHT...Colder. Cloudy with a 50 percent chance of snow.
Lows 6 below to 2 above zero. Wind chill readings 25 below to
35 below zero.
.SATURDAY...Breezy. Mostly cloudy with a 30 percent chance of
snow. Highs zero to 8 above. Wind chill readings 27 below to
37 below zero.
.SATURDAY NIGHT...Breezy, colder. Mostly cloudy in the evening
then becoming partly cloudy. Lows 7 below to 15 below zero. Wind
chill readings 32 below to 42 below zero.
.SUNDAY...Breezy. Partly cloudy. Highs 3 below to 3 above zero.
Wind chill readings 29 below to 39 below zero.

$$

WYZ019-181100-
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Mostly sunny. Highs 24 to 30. West
winds 15 to 25 mph with gusts to around 45 mph.
.TONIGHT...Windy. Mostly clear until early morning then becoming
partly cloudy. Lows 12 to 18. Southwest winds 20 to 30 mph.
.MONDAY...Windy. Partly cloudy. Highs 30 to 36. Southwest winds
25 to 35 mph.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows 16 to 22. Southwest winds around 15 mph.
.TUESDAY...Breezy. Partly cloudy. Highs 32 to 38. Southwest winds
15 to 20 mph.
.TUESDAY NIGHT...Breezy. Partly cloudy. Lows 18 to 26. Southwest
winds 15 to 20 mph.
.WEDNESDAY...Breezy. Partly cloudy in the morning, then mostly
cloudy with a 40 percent chance of snow in the afternoon. Highs
34 to 40.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow after midnight. Areas of blowing snow after midnight.
Light snow accumulations. Lows 7 to 13. Chance of snow
80 percent.
.THURSDAY...Breezy. Much colder. Cloudy. Areas of blowing snow in
the morning. Snow likely in the morning, then chance of snow in
the afternoon. Highs around 13. Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy in the evening then
clearing. Lows 6 below to 2 above zero.
.FRIDAY...Breezy. Partly cloudy. A 20 percent chance of snow in
the afternoon. Highs 14 to 20.
.FRIDAY NIGHT...Cloudy with a 30 percent chance of snow. Lows
1 below to 7 below zero. Lowest wind chill readings 21 below to
31 below zero after midnight.
.SATURDAY...Breezy. Mostly cloudy. A 20 percent chance of snow in
the morning. Highs 3 to 9. Wind chill readings 19 below to
29 below zero.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 11 below to 17 below zero. Wind
chill readings 29 below to 39 below zero.
.SUNDAY...Partly cloudy. Highs around 1. Wind chill readings
26 below to 36 below zero.

$$

WYZ024-181100-
Salt River and Wyoming Ranges-
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Partly cloudy. Highs 20 to 26. Northwest
winds around 15 mph with gusts to around 40 mph.
.TONIGHT...Breezy. Partly cloudy until early morning then
becoming mostly cloudy. Scattered snow showers early in the
morning. Lows 10 to 16. West winds 15 to 20 mph. Chance of snow
30 percent.
.MONDAY...Breezy. Cloudy with scattered snow showers. Highs 25 to
31. West winds 15 to 20 mph. Chance of snow 40 percent.
.MONDAY NIGHT...Mostly cloudy with scattered snow showers. Lows
14 to 20. West winds around 15 mph early in the evening. Chance
of snow 30 percent.
.TUESDAY...Partly cloudy. Highs 31 to 37. Southwest winds around
15 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Lows 18 to 24. Southwest winds around 15 mph.
.WEDNESDAY...Cloudy. Scattered snow showers in the morning, then
snow likely in the afternoon. Light snow accumulations. Highs
29 to 35. Chance of snow 60 percent.
.WEDNESDAY NIGHT...Breezy, colder. Snow likely. Moderate snow
accumulations. Lows 11 to 17. Chance of snow 60 percent.
.THURSDAY...Colder. Cloudy with snow likely in the morning, then
partly cloudy with slight chance of snow in the afternoon. Highs
14 to 20. Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy. Lows 2 to 8.
.FRIDAY...Breezy. Mostly cloudy with a 40 percent chance of snow.
Highs 16 to 22.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow.
Lows 3 to 9.
.SATURDAY...Mostly cloudy with a 20 percent chance of snow in the
morning, then partly cloudy in the afternoon. Highs 10 to 16.
Wind chill readings 14 below to 24 below zero.
.SATURDAY NIGHT...Colder. Partly cloudy. Lows 2 below to 8 below
zero. Wind chill readings 19 below to 29 below zero.
.SUNDAY...Partly cloudy. Highs 3 to 9. Wind chill readings
19 below to 29 below zero.

$$

WYZ030-181100-
East Sweetwater County-
Including the city of Wamsutter
238 PM MST Sun Dec 17 2017

.LATE THIS AFTERNOON...Breezy. Mostly sunny. Highs 29 to 33. West
winds 15 to 20 mph with gusts to around 40 mph.
.TONIGHT...Breezy. Mostly clear until early morning then becoming
partly cloudy. Lows around 16. Southwest winds 15 to 20 mph.
.MONDAY...Breezy. Partly cloudy. Highs 34 to 38. West winds 15 to
25 mph.
.MONDAY NIGHT...Mostly cloudy early in the evening then becoming
partly cloudy. Lows around 20. West winds around 15 mph.
.TUESDAY...Partly cloudy. Highs 38 to 42. Southwest winds around
15 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 20 to 24. Southwest winds
around 15 mph.
.WEDNESDAY...Breezy. Partly cloudy in the morning, then mostly
cloudy with a 40 percent chance of snow in the afternoon. Highs
near 40.
.WEDNESDAY NIGHT...Breezy, colder. Chance of snow in the evening,
then snow likely after midnight. Areas of blowing snow after
midnight. Light snow accumulations. Lows 10 to 14. Chance of snow
70 percent.
.THURSDAY...Breezy. Much colder. Cloudy. Areas of blowing snow in
the morning. Snow likely in the morning, then chance of snow in
the afternoon. Highs 13 to 17. Chance of snow 60 percent.
.THURSDAY NIGHT...Colder. Partly cloudy in the evening then
clearing. Lows zero to 5 above.
.FRIDAY...Breezy. Partly cloudy. A 20 percent chance of snow in
the afternoon. Highs 19 to 23.
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of snow.
Lows 1 below to 4 above zero. Lowest wind chill readings 12 below
to 22 below zero after midnight.
.SATURDAY...Breezy. Mostly cloudy. A 20 percent chance of snow in
the morning. Highs 7 to 12. Wind chill readings 13 below to
23 below zero.
.SATURDAY NIGHT...Breezy, colder. Mostly cloudy in the evening
then becoming partly cloudy. Lows 10 below to 15 below zero. Wind
chill readings 27 below to 37 below zero.
.SUNDAY...Breezy. Partly cloudy. Highs 2 to 7. Wind chill
readings 22 below to 32 below zero.

$$





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