Zone Forecast Product
Issued by NWS Riverton, WY

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FPUS55 KRIW 140839
ZFPRIW

Zone Forecast Product for Western and Central Wyoming
National Weather Service Riverton WY
138 AM MST Thu Dec 14 2017

WYZ020-141100-
Natrona County Lower Elevations-
Including the city of Casper
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Breezy. Mostly cloudy. A 20 percent chance of
snow after midnight. Patchy fog through the night. Lows around
22. West winds 15 to 20 mph.
.THURSDAY...Partly cloudy until late afternoon then clearing.
Patchy fog in the morning. Highs around 34. Northwest winds
around 15 mph until late afternoon.
.THURSDAY NIGHT...Breezy. Mostly clear in the evening then
becoming partly cloudy. Lows 17 to 21. Southwest winds 15 to
20 mph in the late evening and overnight.
.FRIDAY...Breezy. Partly cloudy in the morning then clearing.
Highs 40 to 44. Southwest winds 15 to 25 mph.
.FRIDAY NIGHT...Breezy. Mostly cloudy. A 30 percent chance of
snow after midnight. Lows 24 to 28. Southwest winds 15 to 25 mph.
.SATURDAY...Snow likely. Light snow accumulations. Highs in the
lower 30s. Chance of snow 70 percent.
.SATURDAY NIGHT...Colder, cloudy. Snow likely in the evening,
then chance of snow after midnight. Light snow accumulations.
Lows 10 to 14. Chance of snow 60 percent.
.SUNDAY...Partly cloudy in the morning then clearing. Highs in
the mid 20s to lower 30s.
.SUNDAY NIGHT...Mostly clear. Lows 14 to 18.
.MONDAY...Breezy. Partly cloudy. Highs in the 30s.
.MONDAY NIGHT...Breezy. Partly cloudy in the evening then
clearing. Lows 17 to 21.
.TUESDAY...Breezy. Partly cloudy. Highs in the mid 30s to lower
40s.
.TUESDAY NIGHT...Breezy. Partly cloudy. Lows in the mid to upper
20s.
.WEDNESDAY...Breezy. Partly cloudy. Highs in the lower to mid
40s.

$$

WYZ017-141100-
Wind River Basin-
Including the cities of Riverton and Shoshoni
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy. Patchy fog. Lows around 21.
.THURSDAY...Partly cloudy early in the morning then clearing.
Patchy fog in the morning. Highs 35 to 39.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows 12 to 16.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs 37 to 41.
.FRIDAY NIGHT...Mostly cloudy. A 30 percent chance of snow after
midnight. Lows around 23. Southwest winds around 15 mph.
.SATURDAY...Snow likely. Light snow accumulations. Highs in the
lower 30s. Chance of snow 70 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 40 percent chance
of snow. Lows around 12.
.SUNDAY...Partly cloudy in the morning then clearing. Highs in
the mid 20s to lower 30s.
.SUNDAY NIGHT...Mostly clear. Lows 9 to 13.
.MONDAY...Partly cloudy. Highs 30 to 35.
.MONDAY NIGHT...Partly cloudy in the evening then clearing. Lows
13 to 17.
.TUESDAY...Partly cloudy. Highs 32 to 37.
.TUESDAY NIGHT...Partly cloudy. Lows 18 to 22.
.WEDNESDAY...Partly cloudy. Highs near 40.

$$

WYZ018-141100-
Lander Foothills-
Including the city of Lander
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy after midnight then becoming
partly cloudy. Patchy fog. Lows around 22.
.THURSDAY...Mostly sunny. Patchy fog in the morning. Highs around
39.
.THURSDAY NIGHT...Mostly clear. Lows 13 to 17.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs around 42.
.FRIDAY NIGHT...Windy. Mostly cloudy. Lows around 25. Southwest
winds 25 to 35 mph decreasing to 15 to 20 mph after midnight.
.SATURDAY...Snow likely. Light snow accumulations. Highs in the
mid 30s. Chance of snow 70 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 50 percent chance
of snow. Light snow accumulations. Lows 10 to 14.
.SUNDAY...Partly cloudy in the morning then clearing. Highs
around 30.
.SUNDAY NIGHT...Mostly clear. Lows 12 to 16.
.MONDAY...Partly cloudy. Highs in the mid 30s.
.MONDAY NIGHT...Partly cloudy in the evening then clearing. Lows
16 to 20.
.TUESDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs in the upper 30s.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower to mid 20s.
.WEDNESDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs in the lower 40s.

$$

WYZ028-141100-
Rock Springs and Green River-
Including the cities of Rock Springs and Green River
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy after midnight then becoming
partly cloudy. Patchy fog. Lows around 19.
.THURSDAY...Mostly cloudy then becoming partly cloudy late in the
morning then becoming mostly sunny. Patchy fog in the morning.
Highs 34 to 38.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows 14 to 19. West winds around 15 mph early in
the morning.
.FRIDAY...Breezy. Mostly sunny. Highs 40 to 44. West winds 15 to
20 mph.
.FRIDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 19 to 23. Southwest winds around 15 mph in the
evening.
.SATURDAY...Cloudy with a 30 percent chance of snow. Highs in the
lower 30s.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 40 percent chance
of snow. Lows 10 to 14.
.SUNDAY...Partly cloudy. A 20 percent chance of snow in the
morning. Highs near 30.
.SUNDAY NIGHT...Partly cloudy in the evening then clearing. Lows
11 to 15.
.MONDAY...Partly cloudy. Highs in the mid to upper 30s.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows 16 to 21.
.TUESDAY...Partly cloudy. Highs near 40.
.TUESDAY NIGHT...Partly cloudy. Lows 17 to 22.
.WEDNESDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs near 40.

$$

WYZ013-141100-
Jackson Hole-
Including the city of Jackson
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly clear after midnight then becoming
partly cloudy. Patchy fog. Lows 9 to 13.
.THURSDAY...Partly cloudy early in the morning then clearing.
Patchy fog in the morning. Highs around 30.
.THURSDAY NIGHT...Mostly clear early in the evening then becoming
partly cloudy. Patchy fog after midnight. Lows 5 to 10.
.FRIDAY...Patchy fog in the morning. Mostly sunny in the morning,
then partly cloudy with a 40 percent chance of snow in the
afternoon. Highs 29 to 33.
.FRIDAY NIGHT...Snow likely. Snow accumulation of 1 to 2 inches.
Lows 17 to 21. Chance of snow 70 percent.
.SATURDAY...Cloudy with snow likely. Light snow accumulations.
Highs in the mid to upper 20s. Chance of snow 70 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy. A 20 percent chance of
snow in the evening. Lows 5 to 10.
.SUNDAY...Partly cloudy. Highs in the lower 20s.
.SUNDAY NIGHT...Partly cloudy. Lows 8 to 13.
.MONDAY...Mostly cloudy with a 20 percent chance of snow. Highs
in the upper 20s.
.MONDAY NIGHT...Mostly cloudy with a 20 percent chance of snow.
Lows 14 to 18.
.TUESDAY...Mostly cloudy with a 20 percent chance of snow. Highs
near 30.
.TUESDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows 16 to 20.
.WEDNESDAY...Partly cloudy in the morning then becoming mostly
cloudy. A 20 percent chance of snow. Highs in the lower to mid
30s.

$$

WYZ003-141100-
Cody Foothills-
Including the cities of Cody and Meeteetse
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Patchy fog. Lows 21 to 26.
.THURSDAY...Sunny. Patchy fog in the morning. Highs 38 to 42.
.THURSDAY NIGHT...Breezy. Mostly clear. Lows 19 to 24. Southwest
winds 15 to 20 mph in the late evening and overnight.
.FRIDAY...Windy. Mostly sunny in the morning then becoming partly
cloudy. Highs 43 to 47. Southwest winds 20 to 30 mph.
.FRIDAY NIGHT...Windy. Mostly cloudy with a 30 percent chance of
snow. Lows 24 to 28. West winds 20 to 30 mph.
.SATURDAY...Colder. Snow likely. Light snow accumulations. Highs
near 30. Chance of snow 60 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow in the evening, then partly cloudy after midnight. Lows
14 to 19.
.SUNDAY...Mostly sunny. Highs in the lower to mid 30s.
.SUNDAY NIGHT...Partly cloudy. Lows 18 to 22.
.MONDAY...Partly cloudy. Highs near 40.
.MONDAY NIGHT...Partly cloudy. Lows 22 to 27.
.TUESDAY...Partly cloudy. Highs in the lower to mid 40s.
.TUESDAY NIGHT...Partly cloudy. Lows 26 to 31.
.WEDNESDAY...Breezy. Partly cloudy. Highs in the 40s.
Temperatures falling into the upper 20s in the afternoon.

$$

WYZ004-141100-
North Big Horn Basin-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy. Patchy fog. Lows around 24.
.THURSDAY...Mostly sunny. Patchy fog in the morning. Highs around
41.
.THURSDAY NIGHT...Mostly clear. Lows 15 to 19.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs around 43.
.FRIDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
23 to 27.
.SATURDAY...Cloudy. Snow likely in the morning, then chance of
snow in the afternoon. Light snow accumulations. Highs in the
30s. Chance of snow 60 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy. Lows 13 to 17.
.SUNDAY...Partly cloudy in the morning then clearing. Highs in
the lower 30s.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows 14 to 18.
.MONDAY...Partly cloudy. Highs in the 30s.
.MONDAY NIGHT...Partly cloudy. Lows 17 to 22.
.TUESDAY...Partly cloudy. Highs in the mid 30s to lower 40s.
.TUESDAY NIGHT...Partly cloudy. Lows 20 to 25.
.WEDNESDAY...Partly cloudy. Highs in the lower 40s.

$$

WYZ006-141100-
Southeast Big Horn Basin-
Including the city of Worland
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy. Patchy fog. Lows around 23.
.THURSDAY...Partly cloudy early in the morning then clearing.
Patchy fog early in the morning. Highs 37 to 41.
.THURSDAY NIGHT...Colder. Mostly clear. Lows 12 to 16.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs around 42.
.FRIDAY NIGHT...Cloudy with a 50 percent chance of snow. Little
or no snow accumulation. Lows around 23.
.SATURDAY...Snow. Light snow accumulations. Highs in the mid 30s.
Chance of snow 80 percent.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of snow.
Lows around 14.
.SUNDAY...Partly cloudy in the morning then clearing. Highs
around 30.
.SUNDAY NIGHT...Mostly clear. Lows 11 to 15.
.MONDAY...Partly cloudy. Highs in the lower 30s.
.MONDAY NIGHT...Partly cloudy. Lows 14 to 18.
.TUESDAY...Partly cloudy. Highs in the mid 30s.
.TUESDAY NIGHT...Partly cloudy. Lows 17 to 21.
.WEDNESDAY...Partly cloudy. Highs in the lower 40s.

$$

WYZ005-141100-
Southwest Big Horn Basin-
Including the city of Thermopolis
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy after midnight then becoming
partly cloudy. Lows around 23.
.THURSDAY...Mostly sunny. Highs around 39.
.THURSDAY NIGHT...Colder. Mostly clear. Lows 12 to 16.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs around 41.
.FRIDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
21 to 25.
.SATURDAY...Snow likely. Light snow accumulations. Highs in the
lower 30s. Chance of snow 70 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow. Lows 10 to 14.
.SUNDAY...Partly cloudy in the morning then clearing. Highs in
the upper 20s.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows 10 to 15.
.MONDAY...Partly cloudy. Highs in the lower to mid 30s.
.MONDAY NIGHT...Partly cloudy. Lows 14 to 18.
.TUESDAY...Partly cloudy. Highs in the upper 30s.
.TUESDAY NIGHT...Partly cloudy. Lows 18 to 23.
.WEDNESDAY...Partly cloudy. Highs in the lower 40s.

$$

WYZ023-141100-
Star Valley-
Including the cities of Afton, Alpine, Star Valley Ranch,
and Thayne
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy. Patchy fog. Lows around 13.
.THURSDAY...Partly cloudy in the morning then clearing. Patchy
fog in the morning. Highs around 31.
.THURSDAY NIGHT...Mostly clear then becoming partly cloudy after
midnight then becoming mostly clear. Patchy fog after midnight.
Lows 6 to 10.
.FRIDAY...Patchy fog in the morning. Mostly sunny in the morning,
then partly cloudy with a 30 percent chance of snow in the
afternoon. Highs around 35.
.FRIDAY NIGHT...Chance of snow in the evening, then snow likely
after midnight. Snow accumulation around 1 inch. Lows 17 to 21.
Chance of snow 60 percent.
.SATURDAY...Cloudy. Snow likely in the morning, then chance of
snow in the afternoon. Light snow accumulations. Highs in the
upper 20s. Chance of snow 60 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy. A 20 percent chance of
snow in the evening. Lows 7 to 11.
.SUNDAY...Partly cloudy. Highs in the mid 20s.
.SUNDAY NIGHT...Partly cloudy. Lows 9 to 13.
.MONDAY...Partly cloudy. Highs around 30.
.MONDAY NIGHT...Mostly cloudy. Lows 13 to 17.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs in the lower 30s.
.TUESDAY NIGHT...Partly cloudy. Lows 16 to 20.
.WEDNESDAY...Partly cloudy with a 20 percent chance of snow.
Highs in the upper 30s.

$$

WYZ025-141100-
Upper Green River Basin Foothills-
Including the city of Pinedale
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Lows 10 to 14.
.THURSDAY...Sunny. Highs 31 to 35.
.THURSDAY NIGHT...Mostly clear. Lows 6 to 11.
.FRIDAY...Mostly sunny. Highs 33 to 37.
.FRIDAY NIGHT...Mostly cloudy. Chance of snow in the evening,
then snow likely after midnight. Snow accumulation up to 1 inch.
Lows 15 to 19. Chance of snow 60 percent.
.SATURDAY...Cloudy with a 40 percent chance of snow. Highs near
30.
.SATURDAY NIGHT...Colder. Mostly cloudy. A 30 percent chance of
snow in the evening. Lows 6 to 11.
.SUNDAY...Partly cloudy. Highs in the mid to upper 20s.
.SUNDAY NIGHT...Partly cloudy. Lows 9 to 14.
.MONDAY...Partly cloudy. Highs near 30.
.MONDAY NIGHT...Partly cloudy. Lows 12 to 16.
.TUESDAY...Partly cloudy. Highs in the lower to mid 30s.
.TUESDAY NIGHT...Partly cloudy. Lows 13 to 17.
.WEDNESDAY...Partly cloudy. Highs in the mid 30s.

$$

WYZ026-141100-
Upper Green River Basin-
Including the cities of La Barge, Big Piney, and Farson
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy. Patchy fog. Lows around 14.
.THURSDAY...Partly cloudy early in the morning then clearing.
Patchy fog in the morning. Highs 32 to 36.
.THURSDAY NIGHT...Mostly clear. Lows 5 to 9.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs 36 to 40. West winds around 15 mph in the
afternoon.
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of snow.
Lows 14 to 18.
.SATURDAY...Cloudy with a 30 percent chance of snow. Highs in the
lower to mid 30s.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow. Lows 5 to 9.
.SUNDAY...Partly cloudy. Highs near 30.
.SUNDAY NIGHT...Partly cloudy in the evening then clearing. Lows
6 to 10.
.MONDAY...Partly cloudy. Highs in the lower to mid 30s.
.MONDAY NIGHT...Partly cloudy. Lows 9 to 13.
.TUESDAY...Partly cloudy. Highs in the mid to upper 30s.
.TUESDAY NIGHT...Partly cloudy. Lows 10 to 14.
.WEDNESDAY...Partly cloudy. Highs in the mid 30s to lower 40s.

$$

WYZ010-141100-
Northeast Johnson County-
Including the city of Buffalo
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Windy. Mostly cloudy after midnight then
becoming partly cloudy. Patchy fog. Lows around 27. Northwest
winds 20 to 30 mph.
.THURSDAY...Windy. Partly cloudy in the morning then clearing.
Patchy fog in the morning. Highs around 37. Northwest winds 20 to
30 mph decreasing to 15 to 20 mph late in the afternoon. Gusts up
to 45 mph until late afternoon.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows around 21.
.FRIDAY...Not as cool. Mostly sunny. Highs around 53. South winds
around 15 mph in the afternoon.
.FRIDAY NIGHT...Mostly cloudy. Chance of rain in the evening,
then chance of snow, possibly mixed with rain after midnight.
Lows around 27. Chance of precipitation 30 percent.
.SATURDAY...Colder. Snow likely. Light snow accumulations. Highs
in the mid 30s. Chance of snow 70 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow. Lows around 16.
.SUNDAY...Partly cloudy in the morning then clearing. Highs in
the mid 30s.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 20s.
.MONDAY...Partly cloudy. Highs in the lower 40s.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 20s.
.TUESDAY...Partly cloudy. Highs in the lower 40s.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 20s.
.WEDNESDAY...Breezy. Partly cloudy. Highs in the upper 40s.

$$

WYZ011-141100-
Southeast Johnson County-
Including the city of Kaycee
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Breezy. Mostly cloudy after midnight then
becoming partly cloudy. Lows around 25. Northwest winds 15 to
20 mph.
.THURSDAY...Breezy. Partly cloudy until late afternoon then
clearing. Highs around 37. Northwest winds 15 to 25 mph.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows around 21. Southwest winds around 15 mph
after midnight.
.FRIDAY...Breezy. Not as cool. Mostly sunny in the morning then
becoming partly cloudy. Highs 48 to 52. Southwest winds 15 to
20 mph.
.FRIDAY NIGHT...Breezy. Partly cloudy with chance of rain in the
evening, then cloudy with chance of snow, possibly mixed with
rain after midnight. Lows around 27. Southwest winds 15 to
20 mph. Chance of precipitation 40 percent.
.SATURDAY...Colder, snow. Light snow accumulations. Highs in the
mid 30s. Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow. Lows around 15.
.SUNDAY...Partly cloudy in the morning then clearing. Highs in
the lower 30s.
.SUNDAY NIGHT...Mostly clear. Lows around 19.
.MONDAY...Partly cloudy. Highs around 40.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 20s.
.TUESDAY...Partly cloudy. Highs in the lower 40s.
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.WEDNESDAY...Breezy. Partly cloudy. Highs in the upper 40s.

$$

WYZ027-141100-
South Lincoln County-
Including the cities of Kemmerer and Cokeville
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy. Patchy fog. Lows 14 to 18.
.THURSDAY...Partly cloudy in the morning then clearing. Patchy
fog early in the morning. Highs 32 to 36.
.THURSDAY NIGHT...Mostly clear early in the evening then becoming
partly cloudy. Lows 10 to 15. West winds around 15 mph early in
the morning.
.FRIDAY...Breezy. Mostly sunny in the morning then becoming
partly cloudy. Highs 36 to 40. West winds 15 to 20 mph.
.FRIDAY NIGHT...Mostly cloudy. A 30 percent chance of snow after
midnight. Lows 17 to 21. West winds around 15 mph in the evening.
.SATURDAY...Cloudy with a 30 percent chance of snow. Highs near
30.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow. Lows 8 to 12.
.SUNDAY...Partly cloudy. Highs in the mid to upper 20s.
.SUNDAY NIGHT...Partly cloudy in the evening then clearing. Lows
9 to 13.
.MONDAY...Partly cloudy. Highs in the lower to mid 30s.
.MONDAY NIGHT...Partly cloudy. Lows 12 to 17.
.TUESDAY...Partly cloudy. Highs in the mid to upper 30s.
.TUESDAY NIGHT...Partly cloudy. Lows 16 to 20.
.WEDNESDAY...Partly cloudy. Highs around 40.

$$

WYZ016-141100-
Upper Wind River Basin-
Including the city of Dubois
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Patchy fog. Near steady temperature in the lower 20s.
.THURSDAY...Sunny. Patchy fog in the morning. Highs 35 to 39.
.THURSDAY NIGHT...Breezy. Mostly clear. Lows 15 to 19. West winds
15 to 20 mph in the late evening and overnight.
.FRIDAY...Windy. Mostly sunny in the morning then becoming partly
cloudy. Highs 41 to 46. West winds 15 to 20 mph increasing to
20 to 30 mph in the afternoon.
.FRIDAY NIGHT...Windy. Partly cloudy in the evening then becoming
mostly cloudy. A 40 percent chance of snow. Lows 21 to 25. West
winds 20 to 30 mph.
.SATURDAY...Colder. Chance of snow in the morning, then snow
likely in the afternoon. Light snow accumulations. Highs near 30.
Chance of snow 60 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 40 percent chance
of snow. Lows 11 to 15.
.SUNDAY...Partly cloudy in the morning then clearing. Highs near
30.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows 16 to 20.
.MONDAY...Partly cloudy. Highs in the mid to upper 30s.
.MONDAY NIGHT...Partly cloudy. Lows 19 to 23.
.TUESDAY...Partly cloudy. Highs near 40.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower to mid 20s.
.WEDNESDAY...Breezy. Partly cloudy. Highs 40 to 45.

$$

WYZ001-141100-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy. Patchy fog. Near steady
temperature around 15.
.THURSDAY...Partly cloudy in the morning then clearing. Patchy
fog early in the morning. Highs 24 to 30.
.THURSDAY NIGHT...Mostly clear early in the evening then becoming
partly cloudy. Lows 4 to 10.
.FRIDAY...Partly cloudy in the morning, then mostly cloudy with a
40 percent chance of snow in the afternoon. Highs 24 to 30.
Southwest winds around 15 mph in the afternoon.
.FRIDAY NIGHT...Chance of snow in the evening, then snow after
midnight. Snow accumulation of 2 to 3 inches. Lows 13 to 19.
Southwest winds around 15 mph in the evening. Chance of snow
80 percent.
.SATURDAY...Cloudy with snow. Light snow accumulations. Highs
19 to 25. Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. Lows 1 to 7.
.SUNDAY...Partly cloudy. Highs 17 to 23.
.SUNDAY NIGHT...Partly cloudy with a 20 percent chance of snow.
Lows 6 to 12.
.MONDAY...Mostly cloudy with a 30 percent chance of snow. Highs
21 to 27.
.MONDAY NIGHT...Cloudy with a 30 percent chance of snow. Lows
12 to 18.
.TUESDAY...Mostly cloudy with a 30 percent chance of snow. Highs
25 to 31.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of snow.
Lows 14 to 20.
.WEDNESDAY...Breezy. Mostly cloudy with a 30 percent chance of
snow. Highs 27 to 33.

$$

WYZ029-141100-
Flaming Gorge-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy. Patchy fog. Lows around 20.
.THURSDAY...Mostly cloudy then becoming partly cloudy late in the
morning then becoming mostly sunny. Patchy fog in the morning.
Highs 35 to 40.
.THURSDAY NIGHT...Mostly clear. Lows around 18.
.FRIDAY...Mostly sunny. Highs 41 to 45.
.FRIDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows around 22.
.SATURDAY...Cloudy with a 40 percent chance of snow. Highs in the
lower to mid 30s.
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of snow.
Lows around 13.
.SUNDAY...Partly cloudy. A 20 percent chance of snow in the
morning. Highs 27 to 32.
.SUNDAY NIGHT...Partly cloudy in the evening then clearing. Lows
around 15.
.MONDAY...Not as cold. Partly cloudy. Highs 35 to 40.
.MONDAY NIGHT...Partly cloudy. Lows around 20.
.TUESDAY...Partly cloudy. Highs near 40.
.TUESDAY NIGHT...Partly cloudy in the evening then clearing. Lows
in the lower 20s.
.WEDNESDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs 40 to 45.

$$

WYZ022-141100-
Casper Mountain-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Cloudy with a 30 percent chance of snow. Lows
16 to 22. West winds around 15 mph early in the morning.
.THURSDAY...Mostly cloudy with a 50 percent chance of snow until
late afternoon, then partly cloudy late in the afternoon. Little
or no snow accumulation. Highs 25 to 31. West winds around
15 mph.
.THURSDAY NIGHT...Breezy. Partly cloudy then becoming mostly
clear late in the evening then becoming partly cloudy. Lows 15 to
21. Southwest winds 15 to 20 mph.
.FRIDAY...Windy. Not as cold. Mostly sunny. Highs 34 to 40.
Southwest winds 15 to 20 mph increasing to 20 to 30 mph in the
afternoon.
.FRIDAY NIGHT...Windy. Partly cloudy in the evening then becoming
mostly cloudy. Lows 22 to 28. Southwest winds 20 to 30 mph.
.SATURDAY...Chance of snow in the morning, then snow likely in
the afternoon. Light snow accumulations. Highs 27 to 33. Chance
of snow 60 percent.
.SATURDAY NIGHT...Colder, cloudy. Snow likely in the evening,
then chance of snow after midnight. Light snow accumulations.
Lows 7 to 13. Chance of snow 60 percent.
.SUNDAY...Partly cloudy. A 30 percent chance of snow in the
morning. Highs 21 to 27.
.SUNDAY NIGHT...Partly cloudy in the evening then clearing. Lows
13 to 19.
.MONDAY...Breezy. Mostly sunny in the morning then becoming
partly cloudy. Highs 27 to 33.
.MONDAY NIGHT...Breezy. Partly cloudy in the evening then
clearing. Lows 17 to 23.
.TUESDAY...Breezy. Partly cloudy. Highs 32 to 38.
.TUESDAY NIGHT...Breezy. Partly cloudy. Lows 23 to 29.
.WEDNESDAY...Windy. Mostly sunny. Highs 35 to 41.

$$

WYZ002-141100-
Absaroka Mountains-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy. Near steady temperature around
17. Northwest winds around 15 mph.
.THURSDAY...Sunny. Highs 23 to 33.
.THURSDAY NIGHT...Breezy. Mostly clear. Lows 10 to 18. West winds
15 to 25 mph.
.FRIDAY...Windy. Mostly sunny in the morning then becoming partly
cloudy. Highs 28 to 38. West winds 15 to 25 mph increasing to
25 to 35 mph in the afternoon.
.FRIDAY NIGHT...Windy. Mostly cloudy. Chance of snow in the
evening, then snow likely after midnight. Snow accumulation up to
2 inches. Lows 14 to 22. West winds 25 to 35 mph. Chance of snow
60 percent.
.SATURDAY...Snow. Moderate snow accumulations. Highs 18 to 26.
Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Cloudy in the evening then becoming
partly cloudy. A 40 percent chance of snow. Lows 4 to 12. Wind
chill readings 10 below to 20 below zero.
.SUNDAY...Partly cloudy. Highs 18 to 26. Lowest wind chill
readings 12 below to 22 below zero in the morning.
.SUNDAY NIGHT...Breezy. Partly cloudy with a 20 percent chance of
snow. Lows 11 to 19.
.MONDAY...Breezy. Partly cloudy with a 30 percent chance of snow.
Highs 24 to 32.
.MONDAY NIGHT...Breezy. Mostly cloudy with a 30 percent chance of
snow. Lows 16 to 22.
.TUESDAY...Breezy. Mostly cloudy with a 30 percent chance of
snow. Highs 27 to 35.
.TUESDAY NIGHT...Breezy. Partly cloudy with a 20 percent chance
of snow. Lows 17 to 25.
.WEDNESDAY...Windy. Partly cloudy with a 30 percent chance of
snow. Highs 27 to 37.

$$

WYZ007-141100-
Owl Creek and Bridger Mountains-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy after midnight then becoming
partly cloudy.  and patchy fog through the night. Near steady
temperature in the mid 20s. Northwest winds around 15 mph.
.THURSDAY...Breezy. Mostly sunny. Patchy fog early in the
morning. Highs 31 to 37. North winds 15 to 20 mph until late
afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 17.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs 36 to 42.
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of snow.
Lows 21 to 27. Southwest winds around 15 mph in the evening.
.SATURDAY...Snow. Moderate snow accumulations. Highs 26 to 32.
Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow. Lows 11 to 17.
.SUNDAY...Partly cloudy in the morning then clearing. Highs 23 to
29.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows 14 to 20.
.MONDAY...Partly cloudy. Highs 29 to 35.
.MONDAY NIGHT...Partly cloudy. Lows 17 to 23.
.TUESDAY...Partly cloudy. Highs 32 to 38.
.TUESDAY NIGHT...Partly cloudy. Lows 21 to 27.
.WEDNESDAY...Breezy. Partly cloudy. Highs 36 to 42.

$$

WYZ008-141100-
Bighorn Mountains West-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Breezy. Mostly cloudy after midnight then
becoming partly cloudy. A 30 percent chance of snow. Near steady
temperature around 20. Northwest winds 15 to 20 mph.
.THURSDAY...Breezy. Partly cloudy with a 30 percent chance of
snow in the morning, then mostly sunny in the afternoon. Highs
24 to 34. Northwest winds 15 to 20 mph until late afternoon.
.THURSDAY NIGHT...Mostly clear then becoming partly cloudy after
midnight then becoming mostly clear. Lows 14 to 20.
.FRIDAY...Not as cold. Mostly sunny. Highs 35 to 41. West winds
around 15 mph.
.FRIDAY NIGHT...Chance of snow in the evening, then snow likely
after midnight. Snow accumulation of 1 to 2 inches. Lows 17 to
27. West winds around 15 mph in the evening. Chance of snow
60 percent.
.SATURDAY...Snow. Moderate snow accumulations. Highs 21 to 31.
Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 40 percent chance
of snow. Lows 7 to 15. Wind chill readings 10 below to 20 below
zero.
.SUNDAY...Partly cloudy. Highs 21 to 27.
.SUNDAY NIGHT...Partly cloudy. Near steady temperature around 17.
.MONDAY...Partly cloudy with a 20 percent chance of snow. Highs
27 to 33.
.MONDAY NIGHT...Partly cloudy with a 30 percent chance of snow.
Lows 15 to 23.
.TUESDAY...Partly cloudy with a 30 percent chance of snow. Highs
29 to 35.
.TUESDAY NIGHT...Partly cloudy. Lows 20 to 26.
.WEDNESDAY...Breezy. Partly cloudy. Highs 32 to 40.

$$

WYZ009-141100-
Bighorn Mountains Southeast-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Breezy. Mostly cloudy after midnight then
becoming partly cloudy. A 30 percent chance of snow. Lows 14 to
22. Northwest winds 15 to 25 mph.
.THURSDAY...Breezy. Partly cloudy with a 30 percent chance of
snow in the morning, then mostly sunny in the afternoon. Highs
25 to 31. Northwest winds 15 to 25 mph.
.THURSDAY NIGHT...Breezy. Mostly clear then becoming partly
cloudy after midnight then becoming mostly clear. Lows 15 to 21.
West winds 15 to 20 mph.
.FRIDAY...Breezy. Not as cool. Mostly sunny. Highs 37 to 45. West
winds 15 to 20 mph.
.FRIDAY NIGHT...Breezy. Chance of snow in the evening, then snow
likely after midnight. Snow accumulation of 1 to 2 inches. Lows
18 to 26. West winds 15 to 20 mph. Chance of snow 60 percent.
.SATURDAY...Colder, snow. Moderate snow accumulations. Highs
23 to 31. Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 40 percent chance
of snow. Lows 8 to 14. Wind chill readings 10 below to 20 below
zero.
.SUNDAY...Partly cloudy in the morning then clearing. Highs 22 to
28.
.SUNDAY NIGHT...Mostly clear. Near steady temperature around 18.
.MONDAY...Breezy. Partly cloudy. Highs 29 to 35.
.MONDAY NIGHT...Breezy. Partly cloudy with a 20 percent chance of
snow. Near steady temperature in the lower 20s.
.TUESDAY...Breezy. Partly cloudy with a 20 percent chance of
snow. Highs 31 to 37.
.TUESDAY NIGHT...Breezy. Partly cloudy. Near steady temperature
in the mid 20s.
.WEDNESDAY...Breezy. Partly cloudy. Highs 34 to 42. Temperatures
falling into the lower 20s in the afternoon.

$$

WYZ012-141100-
Teton and Gros Ventre Mountains-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Near steady temperature around 16.
.THURSDAY...Mostly sunny. Highs 23 to 29.
.THURSDAY NIGHT...Mostly clear then becoming partly cloudy late
in the evening then becoming mostly clear. Lows 6 to 12.
.FRIDAY...Mostly sunny in the morning, then partly cloudy with a
50 percent chance of snow in the afternoon. Little or no snow
accumulation. Highs 25 to 31.
.FRIDAY NIGHT...Snow. Snow accumulation of 2 to 3 inches. Lows
14 to 20. Chance of snow 80 percent.
.SATURDAY...Snow. Moderate snow accumulations. Highs 20 to 26.
Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. A 30 percent chance of snow. Lows 4 to
10.
.SUNDAY...Partly cloudy. Highs 17 to 23.
.SUNDAY NIGHT...Partly cloudy. Lows 8 to 14.
.MONDAY...Mostly cloudy with a 30 percent chance of snow. Highs
22 to 28.
.MONDAY NIGHT...Mostly cloudy with a 20 percent chance of snow.
Lows 13 to 19.
.TUESDAY...Mostly cloudy with a 20 percent chance of snow. Highs
26 to 32.
.TUESDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows 15 to 21.
.WEDNESDAY...Breezy. Partly cloudy in the morning then becoming
mostly cloudy. A 30 percent chance of snow. Highs 27 to 33.

$$

WYZ014-141100-
Wind River Mountains West-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Near steady temperature around 16.
.THURSDAY...Sunny. Highs 24 to 30.
.THURSDAY NIGHT...Mostly clear. Lows 7 to 13. Northwest winds
around 15 mph early in the morning.
.FRIDAY...Breezy. Mostly sunny in the morning then becoming
partly cloudy. Highs 30 to 36. West winds 15 to 20 mph.
.FRIDAY NIGHT...Breezy. Mostly cloudy. Chance of snow in the
evening, then snow likely after midnight. Snow accumulation up to
2 inches. Lows 14 to 20. West winds 15 to 20 mph. Chance of snow
60 percent.
.SATURDAY...Snow. Moderate snow accumulations. Highs 19 to 27.
Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 50 percent chance
of snow. Light snow accumulations. Lows 3 to 9. Wind chill
readings 12 below to 22 below zero.
.SUNDAY...Partly cloudy. Highs 18 to 24. Lowest wind chill
readings 14 below to 24 below zero in the morning.
.SUNDAY NIGHT...Partly cloudy. Lows 8 to 14.
.MONDAY...Partly cloudy. Highs 24 to 30.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows 12 to 18.
.TUESDAY...Partly cloudy. Highs 26 to 32.
.TUESDAY NIGHT...Partly cloudy. Lows 14 to 20.
.WEDNESDAY...Breezy. Partly cloudy with a 40 percent chance of
snow. Highs 27 to 35.

$$

WYZ015-141100-
Wind River Mountains East-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Near steady temperature around 17. Northwest winds around 15 mph
early in the morning.
.THURSDAY...Sunny. Highs 23 to 33.
.THURSDAY NIGHT...Breezy. Mostly clear. Lows 11 to 17. West winds
15 to 20 mph.
.FRIDAY...Windy. Not as cold. Mostly sunny in the morning then
becoming partly cloudy. Highs 30 to 40. West winds 15 to 20 mph
increasing to 20 to 30 mph in the afternoon.
.FRIDAY NIGHT...Very windy. Partly cloudy with chance of snow in
the evening, then mostly cloudy with snow likely after midnight.
Snow accumulation up to 2 inches. Lows 15 to 23. West winds 35 to
45 mph decreasing to 25 to 35 mph after midnight. Chance of snow
60 percent.
.SATURDAY...Snow. Moderate snow accumulations. Highs 19 to 29.
Chance of snow 80 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy. Snow likely in the
evening, then chance of snow after midnight. Light snow
accumulations. Lows 4 to 12. Chance of snow 60 percent. Wind
chill readings 12 below to 22 below zero.
.SUNDAY...Breezy. Partly cloudy in the morning then clearing.
Highs 18 to 26. Lowest wind chill readings 14 below to 24 below
zero in the morning.
.SUNDAY NIGHT...Breezy. Partly cloudy. Near steady temperature
around 15.
.MONDAY...Breezy. Partly cloudy. Highs 24 to 32.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows 15 to 21.
.TUESDAY...Breezy. Partly cloudy. Highs 26 to 36.
.TUESDAY NIGHT...Breezy. Partly cloudy. Near steady temperature
in the lower 20s.
.WEDNESDAY...Breezy. Mostly sunny in the morning then becoming
partly cloudy. A 40 percent chance of snow. Highs 27 to 37.
Temperatures falling into the upper teens in the afternoon.

$$

WYZ019-141100-
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow
after midnight. Patchy fog through the night. Lows 15 to 21.
Northwest winds around 15 mph.
.THURSDAY...Partly cloudy in the morning then clearing. Patchy
fog in the morning. Highs 28 to 34. West winds around 15 mph.
.THURSDAY NIGHT...Mostly clear early in the evening then becoming
partly cloudy. Lows 11 to 17. Southwest winds around 15 mph in
the late evening and overnight.
.FRIDAY...Breezy. Mostly sunny. Highs 33 to 39. Southwest winds
15 to 25 mph.
.FRIDAY NIGHT...Breezy. Partly cloudy in the evening then
becoming mostly cloudy. Lows 19 to 25. Southwest winds 15 to
25 mph.
.SATURDAY...Snow likely. Light snow accumulations. Highs 27 to
33. Chance of snow 70 percent.
.SATURDAY NIGHT...Colder, cloudy. Snow likely in the evening,
then chance of snow after midnight. Light snow accumulations.
Lows 6 to 12. Chance of snow 60 percent.
.SUNDAY...Partly cloudy. A 20 percent chance of snow in the
morning. Highs 22 to 28.
.SUNDAY NIGHT...Mostly clear. Lows 8 to 14.
.MONDAY...Breezy. Partly cloudy. Highs in the lower 30s.
.MONDAY NIGHT...Breezy. Partly cloudy in the evening then
clearing. Lows 14 to 20.
.TUESDAY...Breezy. Partly cloudy. Highs 32 to 38.
.TUESDAY NIGHT...Breezy. Partly cloudy. Lows 18 to 24.
.WEDNESDAY...Breezy. Mostly sunny in the morning then becoming
partly cloudy. Highs 34 to 40.

$$

WYZ024-141100-
Salt River and Wyoming Ranges-
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Near steady temperature around 20.
.THURSDAY...Mostly sunny. Highs 27 to 33.
.THURSDAY NIGHT...Mostly clear. Lows 8 to 14.
.FRIDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs 30 to 36.
.FRIDAY NIGHT...Mostly cloudy. Chance of snow in the evening,
then snow likely after midnight. Snow accumulation up to
2 inches. Lows 16 to 22. Chance of snow 60 percent.
.SATURDAY...Cloudy with snow likely. Light snow accumulations.
Highs 23 to 29. Chance of snow 60 percent.
.SATURDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance
of snow. Lows 7 to 13.
.SUNDAY...Partly cloudy. Highs 21 to 27.
.SUNDAY NIGHT...Partly cloudy. Lows 11 to 17.
.MONDAY...Partly cloudy. Highs 26 to 32.
.MONDAY NIGHT...Partly cloudy. Lows 13 to 19.
.TUESDAY...Partly cloudy. Highs 30 to 36.
.TUESDAY NIGHT...Partly cloudy. Lows 16 to 22.
.WEDNESDAY...Partly cloudy with a 30 percent chance of snow.
Highs 32 to 38.

$$

WYZ030-141100-
East Sweetwater County-
Including the city of Wamsutter
138 AM MST Thu Dec 14 2017

.REST OF TONIGHT...Mostly cloudy with a 20 percent chance of snow
after midnight, then partly cloudy early in the morning. Patchy
fog through the night. Lows around 18. North winds around 15 mph.
.THURSDAY...Partly cloudy until late afternoon then clearing.
Patchy fog in the morning. Highs 32 to 36. West winds around
15 mph in the late morning and early afternoon.
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows 13 to 17. Southwest winds around 15 mph after
midnight.
.FRIDAY...Breezy. Mostly sunny. Highs 37 to 41. Southwest winds
15 to 25 mph.
.FRIDAY NIGHT...Breezy. Partly cloudy in the evening then
becoming mostly cloudy. Lows around 21. Southwest winds 15 to
20 mph.
.SATURDAY...Cloudy. Chance of snow in the morning, then snow
likely in the afternoon. Highs in the lower to mid 30s. Chance of
snow 60 percent.
.SATURDAY NIGHT...Colder. Cloudy with a 50 percent chance of
snow. Lows 8 to 12.
.SUNDAY...Partly cloudy. A 20 percent chance of snow in the
morning. Highs in the mid to upper 20s.
.SUNDAY NIGHT...Partly cloudy in the evening then clearing. Lows
10 to 14.
.MONDAY...Breezy. Partly cloudy. Highs in the lower to mid 30s.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows 16 to 20.
.TUESDAY...Breezy. Partly cloudy. Highs in the upper 30s.
.TUESDAY NIGHT...Partly cloudy. Lows 18 to 22.
.WEDNESDAY...Breezy. Mostly sunny in the morning then becoming
partly cloudy. Highs in the upper 30s.

$$





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