Zone Forecast Product
Issued by NWS Riverton, WY

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958
FPUS55 KRIW 210748
ZFPRIW

Zone Forecast Product for Western and Central Wyoming
National Weather Service Riverton WY
147 AM MDT Sat Apr 21 2018

WYZ020-211000-
Natrona County Lower Elevations-
Including the city of Casper
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Cloudy. A 30 percent chance of rain showers
and snow showers after midnight. Patchy fog after midnight. Near
steady temperature in the mid 30s.
.SATURDAY...Mostly cloudy then becoming partly cloudy in the late
morning and early afternoon then becoming mostly sunny. Highs
around 61.
.SATURDAY NIGHT...Mostly clear. Lows around 33.
.SUNDAY...Mostly sunny. Highs around 68.
.SUNDAY NIGHT...Mostly clear. Lows around 35.
.MONDAY...Breezy, cooler. Partly cloudy in the morning then
becoming cloudy. A 50 percent chance of rain showers. Highs near
50.
.MONDAY NIGHT...Breezy, cloudy. Snow showers likely, possibly
mixed with rain showers in the evening, then chance of snow
showers after midnight. Lows in the mid 20s. Chance of
precipitation 60 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs in the upper 40s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs in the lower 60s.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers and snow showers after midnight. Lows in the lower 30s.
.THURSDAY...Partly cloudy in the morning then clearing. Highs in
the upper 50s.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Mostly sunny. Highs in the upper 60s.

$$

WYZ017-211000-
Wind River Basin-
Including the cities of Riverton and Shoshoni
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy. Lows 33 to 37.
.SATURDAY...Partly cloudy early in the morning then clearing.
Highs 63 to 67.
.SATURDAY NIGHT...Mostly clear. Lows around 36.
.SUNDAY...Mostly sunny. Highs 68 to 72.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows around 37.
.MONDAY...Breezy, cooler. Mostly cloudy with a 40 percent chance
of rain showers. Highs in the mid 40s to lower 50s.
.MONDAY NIGHT...Breezy. Mostly cloudy. Chance of snow showers,
possibly mixed with rain showers in the evening, then chance of
snow showers after midnight. Lows in the upper 20s. Chance of
precipitation 40 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs near 50.
.TUESDAY NIGHT...Mostly clear. Lows around 30.
.WEDNESDAY...Warmer. Mostly sunny. Highs in the lower to mid 60s.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with a 20 percent chance of rain showers and snow showers
after midnight. Lows in the lower 30s.
.THURSDAY...Partly cloudy in the morning then clearing. Highs in
the mid 50s to lower 60s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 30s.
.FRIDAY...Warmer, sunny. Highs in the mid 60s to lower 70s.

$$

WYZ018-211000-
Lander Foothills-
Including the city of Lander
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy. A 30 percent chance of rain
showers after midnight. Lows around 34.
.SATURDAY...Mostly sunny. Highs around 65.
.SATURDAY NIGHT...Mostly clear. Lows around 37.
.SUNDAY...Mostly sunny. Highs around 69.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows around 38.
.MONDAY...Cooler. Mostly cloudy with a 50 percent chance of rain
showers. Highs in the upper 40s.
.MONDAY NIGHT...Colder. Mostly cloudy. Chance of snow showers,
possibly mixed with rain showers in the evening, then chance of
snow showers after midnight. Lows in the upper 20s. Chance of
precipitation 40 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs in the lower 50s.
.TUESDAY NIGHT...Mostly clear. Lows around 30.
.WEDNESDAY...Not as cool. Mostly sunny. Highs in the lower 60s.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers and snow showers after midnight. Lows in the lower 30s.
.THURSDAY...Partly cloudy in the morning then clearing. Highs in
the upper 50s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 30s.
.FRIDAY...Mostly sunny. Highs in the upper 60s.

$$

WYZ028-211000-
Rock Springs and Green River-
Including the cities of Rock Springs and Green River
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy. Lows around 31.
.SATURDAY...Partly cloudy in the morning then clearing. Highs
59 to 63. West winds around 15 mph in the afternoon.
.SATURDAY NIGHT...Breezy. Mostly clear. Lows around 32. West
winds 15 to 20 mph until early morning.
.SUNDAY...Sunny. Highs 63 to 67.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows around 38.
.MONDAY...Breezy, cooler. Partly cloudy with a 30 percent chance
of rain showers. Highs in the mid 50s.
.MONDAY NIGHT...Breezy, colder. Partly cloudy. Lows in the upper
20s.
.TUESDAY...Partly cloudy in the morning then clearing. Highs in
the lower to mid 50s.
.TUESDAY NIGHT...Mostly clear. Lows around 30.
.WEDNESDAY...Not as cool. Mostly sunny. Highs in the lower to mid
60s.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.THURSDAY...Mostly sunny. Highs in the mid 50s to lower 60s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 30s.
.FRIDAY...Mostly sunny. Highs in the 60s.

$$

WYZ013-211000-
Jackson Hole-
Including the city of Jackson
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Clear. Lows 25 to 29.
.SATURDAY...Mostly sunny. Highs 56 to 60.
.SATURDAY NIGHT...Mostly clear. Lows around 30.
.SUNDAY...Mostly sunny. Highs 57 to 61.
.SUNDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with a 50 percent chance of rain showers after midnight. Lows
around 34.
.MONDAY...Cooler. Rain showers, possibly mixed with snow showers.
Highs in the lower to mid 40s. Chance of precipitation
60 percent.
.MONDAY NIGHT...Colder. Mostly cloudy with a 20 percent chance of
rain showers and snow showers in the evening, then partly cloudy
after midnight. Lows in the 20s.
.TUESDAY...Not as cool. Partly cloudy in the morning then
clearing. Highs in the lower to mid 50s.
.TUESDAY NIGHT...Mostly clear. Lows in the mid to upper 20s.
.WEDNESDAY...Mostly sunny. Highs in the mid to upper 50s.
.WEDNESDAY NIGHT...Partly cloudy. Lows near 30.
.THURSDAY...Mostly sunny. Highs in the lower to mid 50s.
.THURSDAY NIGHT...Mostly clear. Lows around 30.
.FRIDAY...Not as cool. Mostly sunny. Highs 59 to 64.

$$

WYZ003-211000-
Cody Foothills-
Including the cities of Cody and Meeteetse
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly clear. Lows 31 to 35.
.SATURDAY...Mostly sunny. Highs 62 to 67.
.SATURDAY NIGHT...Mostly clear. Lows 33 to 38.
.SUNDAY...Mostly sunny. Highs 62 to 67.
.SUNDAY NIGHT...Breezy. Partly cloudy in the evening, then mostly
cloudy with a 30 percent chance of rain showers, possibly mixed
with snow showers after midnight. Lows 31 to 35. Northwest winds
15 to 20 mph after midnight.
.MONDAY...Breezy. Much colder. Cloudy. Snow showers likely,
possibly mixed with rain showers in the morning, then snow
showers likely in the afternoon. Light snow accumulations. Highs
in the mid 30s to lower 40s. Chance of precipitation 60 percent.
.MONDAY NIGHT...Breezy, colder. Mostly cloudy with a 40 percent
chance of snow showers. Lows in the lower to mid 20s.
.TUESDAY...Not as cool. Partly cloudy in the morning then
clearing. Highs 49 to 54.
.TUESDAY NIGHT...Mostly clear. Lows near 30.
.WEDNESDAY...Mostly sunny. Highs 56 to 61.
.WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers
in the evening. Lows near 30. Chance of showers 20 percent.
.THURSDAY...Mostly sunny. Highs 54 to 59.
.THURSDAY NIGHT...Mostly clear. Lows in the lower to mid 30s.
.FRIDAY...Mostly sunny. Highs 60 to 65.

$$

WYZ004-211000-
North Big Horn Basin-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly clear. Lows around 36.
.SATURDAY...Mostly sunny. Highs 67 to 71.
.SATURDAY NIGHT...Mostly clear. Lows around 39. Northwest winds
around 15 mph after midnight.
.SUNDAY...Mostly sunny. Highs 67 to 71.
.SUNDAY NIGHT...Breezy. Partly cloudy. A 20 percent chance of
rain showers after midnight. Lows 36 to 40. North winds 15 to
20 mph after midnight.
.MONDAY...Breezy. Much cooler. Cloudy. Chance of rain showers,
possibly mixed with snow showers in the morning, then rain
showers, possibly mixed with snow showers in the afternoon. Highs
42 to 47. Chance of precipitation 60 percent.
.MONDAY NIGHT...Breezy, colder. Mostly cloudy. Chance of snow
showers, possibly mixed with rain showers in the evening, then
slight chance of snow showers after midnight. Lows in the upper
20s. Chance of precipitation 40 percent.
.TUESDAY...Not as cool. Partly cloudy in the morning then
clearing. Highs in the mid 50s.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 30s.
.WEDNESDAY...Warmer. Mostly sunny. Highs in the lower to mid 60s.
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the mid 30s.
.THURSDAY...Mostly sunny. Highs near 60.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 30s.
.FRIDAY...Mostly sunny. Highs in the mid to upper 60s.

$$

WYZ006-211000-
Southeast Big Horn Basin-
Including the city of Worland
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy after midnight then becoming
partly cloudy. Lows around 35.
.SATURDAY...Partly cloudy early in the morning then clearing.
Highs 65 to 69.
.SATURDAY NIGHT...Mostly clear. Lows around 37.
.SUNDAY...Mostly sunny. Highs 67 to 71.
.SUNDAY NIGHT...Partly cloudy. Lows around 37. North winds around
15 mph after midnight.
.MONDAY...Breezy. Much cooler. Cloudy. Chance of rain showers in
the morning, then rain showers likely in the afternoon. Highs in
the 40s. Chance of showers 60 percent.
.MONDAY NIGHT...Breezy. Mostly cloudy. Chance of rain showers and
snow showers in the evening, then chance of snow showers after
midnight. Lows in the upper 20s. Chance of precipitation
50 percent.
.TUESDAY...Partly cloudy in the morning then clearing. Highs in
the lower to mid 50s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Warmer. Mostly sunny. Highs in the lower to mid 60s.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers in the evening, then mostly cloudy after midnight. Lows
in the lower 30s.
.THURSDAY...Mostly sunny. Highs near 60.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 30s.
.FRIDAY...Mostly sunny. Highs in the mid to upper 60s.

$$

WYZ005-211000-
Southwest Big Horn Basin-
Including the city of Thermopolis
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Partly cloudy. Lows around 35.
.SATURDAY...Mostly sunny. Highs 65 to 69.
.SATURDAY NIGHT...Mostly clear. Lows around 36.
.SUNDAY...Mostly sunny. Highs 67 to 71.
.SUNDAY NIGHT...Partly cloudy. Lows around 36.
.MONDAY...Breezy. Much cooler. Cloudy. Chance of rain showers in
the morning, then chance of rain showers, possibly mixed with
snow showers in the afternoon. Light snow accumulations. Highs in
the lower to mid 40s. Chance of precipitation 60 percent.
.MONDAY NIGHT...Breezy. Mostly cloudy. Chance of snow showers,
possibly mixed with rain showers in the evening, then chance of
snow showers after midnight. Lows in the upper 20s. Chance of
precipitation 50 percent.
.TUESDAY...Partly cloudy in the morning then clearing. Highs in
the lower 50s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs in the lower to mid
60s.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers in the evening, then mostly cloudy after midnight. Lows
in the lower 30s.
.THURSDAY...Mostly sunny. Highs near 60.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Mostly sunny. Highs in the mid to upper 60s.

$$

WYZ023-211000-
Star Valley-
Including the cities of Afton, Alpine, Star Valley Ranch,
and Thayne
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Clear. Lows around 30.
.SATURDAY...Mostly sunny. Highs 59 to 63.
.SATURDAY NIGHT...Mostly clear. Lows around 31.
.SUNDAY...Mostly sunny. Highs 62 to 66.
.SUNDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with a 30 percent chance of rain showers after midnight. Lows
around 35.
.MONDAY...Cooler. Mostly cloudy with a 40 percent chance of rain
showers. Highs in the upper 40s.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.TUESDAY...Partly cloudy. Highs in the mid to upper 50s.
.TUESDAY NIGHT...Partly cloudy in the evening then clearing. Lows
in the upper 20s.
.WEDNESDAY...Mostly sunny. Highs near 60.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.THURSDAY...Mostly sunny. Highs in the mid 50s to lower 60s.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Mostly sunny. Highs in the 60s.

$$

WYZ025-211000-
Upper Green River Basin Foothills-
Including the city of Pinedale
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Clear. Lows 25 to 29.
.SATURDAY...Mostly sunny. Highs 55 to 59. Northwest winds around
15 mph late in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows around 27. Northwest winds
around 15 mph early in the evening.
.SUNDAY...Mostly sunny. Highs 56 to 60.
.SUNDAY NIGHT...Partly cloudy. A 40 percent chance of rain
showers, possibly mixed with snow showers after midnight. Lows
around 32.
.MONDAY...Cooler. Mostly cloudy. Rain showers, possibly mixed
with snow showers in the morning, then chance of rain showers,
possibly mixed with snow showers in the afternoon. Highs in the
40s. Chance of precipitation 60 percent.
.MONDAY NIGHT...Mostly cloudy with chance of snow showers,
possibly mixed with rain showers in the evening, then partly
cloudy with chance of snow showers after midnight. Lows in the
mid 20s. Chance of precipitation 30 percent.
.TUESDAY...Partly cloudy. Highs near 50.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 20s.
.WEDNESDAY...Mostly sunny. Highs in the mid to upper 50s.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.THURSDAY...Mostly sunny. Highs near 50.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 20s.
.FRIDAY...Mostly sunny. Highs in the mid 50s to lower 60s.

$$

WYZ026-211000-
Upper Green River Basin-
Including the cities of La Barge, Big Piney, and Farson
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Partly cloudy. Lows around 29.
.SATURDAY...Breezy. Partly cloudy early in the morning then
clearing. Highs 59 to 63. Northwest winds 15 to 20 mph in the
afternoon.
.SATURDAY NIGHT...Breezy. Mostly clear. Lows 27 to 31. Northwest
winds 15 to 20 mph in the evening.
.SUNDAY...Mostly sunny. Highs 61 to 65.
.SUNDAY NIGHT...Partly cloudy. A 30 percent chance of rain
showers after midnight. Lows 32 to 36.
.MONDAY...Breezy. Mostly cloudy with a 40 percent chance of rain
showers. Highs 49 to 54.
.MONDAY NIGHT...Breezy. Partly cloudy. Slight chance of rain
showers and snow showers in the evening, then slight chance of
snow showers after midnight. Lows in the mid 20s. Chance of
precipitation 20 percent.
.TUESDAY...Partly cloudy. Highs near 50.
.TUESDAY NIGHT...Mostly clear. Lows in the mid to upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs near 60.
.WEDNESDAY NIGHT...Partly cloudy. Lows near 30.
.THURSDAY...Mostly sunny. Highs in the 50s.
.THURSDAY NIGHT...Mostly clear. Lows near 30.
.FRIDAY...Mostly sunny. Highs in the lower to mid 60s.

$$

WYZ010-211000-
Northeast Johnson County-
Including the city of Buffalo
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy. Near steady temperature in the
mid 30s. South winds around 15 mph.
.SATURDAY...Partly cloudy in the morning then clearing. Highs
63 to 67. South winds around 15 mph in the morning.
.SATURDAY NIGHT...Breezy. Mostly clear. Lows around 37. Northwest
winds 15 to 20 mph after midnight.
.SUNDAY...Mostly sunny. Highs 64 to 68. North winds around 15 mph
in the morning.
.SUNDAY NIGHT...Partly cloudy. Lows around 36.
.MONDAY...Breezy, cooler, cloudy. Chance of rain showers in the
morning, then rain showers likely in the afternoon. Highs in the
lower to mid 40s. Chance of showers 60 percent.
.MONDAY NIGHT...Breezy, cloudy. Snow showers likely, possibly
mixed with rain showers in the evening, then chance of snow
showers after midnight. Light snow accumulations. Lows in the
upper 20s. Chance of precipitation 60 percent.
.TUESDAY...Partly cloudy in the morning then clearing. Highs near
50.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 30s.
.WEDNESDAY...Warmer. Mostly sunny. Highs in the 60s.
.WEDNESDAY NIGHT...Breezy. Partly cloudy with slight chance of
rain showers in the evening, then mostly cloudy after midnight.
Lows in the lower 30s. Chance of showers 20 percent.
.THURSDAY...Partly cloudy in the morning then clearing. Highs in
the mid to upper 50s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 30s.
.FRIDAY...Mostly sunny. Highs in the mid 60s.

$$

WYZ011-211000-
Southeast Johnson County-
Including the city of Kaycee
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Cloudy. A 20 percent chance of rain showers
after midnight. Near steady temperature in the mid 30s.
.SATURDAY...Partly cloudy until late afternoon then clearing.
Highs around 64. South winds around 15 mph late in the morning.
.SATURDAY NIGHT...Mostly clear. Lows around 35. Northwest winds
around 15 mph early in the morning.
.SUNDAY...Mostly sunny. Highs 65 to 69. Northeast winds around
15 mph in the morning.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows around 36.
.MONDAY...Windy, cooler. Mostly cloudy. Chance of rain showers in
the morning, then rain showers likely in the afternoon. Highs in
the mid to upper 40s. Chance of showers 60 percent.
.MONDAY NIGHT...Windy, cloudy. Chance of rain showers and snow
showers in the evening, then chance of snow showers after
midnight. Lows in the upper 20s. Chance of precipitation
50 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs around 50.
.TUESDAY NIGHT...Mostly clear. Lows around 30.
.WEDNESDAY...Warmer. Mostly sunny. Highs in the 60s.
.WEDNESDAY NIGHT...Breezy. Partly cloudy. Slight chance of rain
showers in the evening, then slight chance of rain showers and
snow showers after midnight. Lows in the lower 30s. Chance of
precipitation 20 percent.
.THURSDAY...Partly cloudy in the morning then clearing. Highs in
the mid to upper 50s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 30s.
.FRIDAY...Warmer. Mostly sunny. Highs in the mid to upper 60s.

$$

WYZ027-211000-
South Lincoln County-
Including the cities of Kemmerer and Cokeville
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Partly cloudy. Lows around 30.
.SATURDAY...Breezy. Mostly sunny. Highs 58 to 62. Northwest winds
15 to 20 mph in the afternoon.
.SATURDAY NIGHT...Breezy. Mostly clear. Lows around 30. Northwest
winds 15 to 20 mph in the evening.
.SUNDAY...Mostly sunny. Highs 62 to 66.
.SUNDAY NIGHT...Partly cloudy. A 30 percent chance of rain
showers after midnight. Lows around 36.
.MONDAY...Breezy, cooler. Partly cloudy with a 30 percent chance
of rain showers. Highs in the lower to mid 50s.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows in the upper 20s.
.TUESDAY...Partly cloudy in the morning then clearing. Highs in
the lower 50s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Mostly sunny. Highs near 60.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.THURSDAY...Mostly sunny. Highs in the mid to upper 50s.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Mostly sunny. Highs in the lower to mid 60s.

$$

WYZ016-211000-
Upper Wind River Basin-
Including the city of Dubois
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly clear. Near steady temperature in the
lower 30s.
.SATURDAY...Mostly sunny. Highs 58 to 63. West winds around
15 mph late in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 29 to 33. Northwest winds
around 15 mph until early morning.
.SUNDAY...Mostly sunny. Highs 60 to 65.
.SUNDAY NIGHT...Partly cloudy. A 30 percent chance of rain
showers after midnight. Lows 31 to 35.
.MONDAY...Cooler. Cloudy with rain showers, possibly mixed with
snow showers. Highs in the lower to mid 40s. Chance of
precipitation 60 percent.
.MONDAY NIGHT...Mostly cloudy with a 50 percent chance of snow
showers. Lows in the mid 20s.
.TUESDAY...Partly cloudy in the morning then clearing. Highs in
the mid 40s to lower 50s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 55 to 60.
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Lows in the upper 20s.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
50 to 55.
.THURSDAY NIGHT...Mostly clear. Lows near 30.
.FRIDAY...Not as cool. Mostly sunny. Highs 58 to 63.

$$

WYZ001-211000-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly clear. Lows 20 to 26.
.SATURDAY...Mostly sunny. Highs 50 to 56.
.SATURDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Lows 24 to 30.
.SUNDAY...Mostly sunny. Highs 48 to 54.
.SUNDAY NIGHT...Partly cloudy with slight chance of rain showers,
possibly mixed with snow showers in the evening, then mostly
cloudy with snow showers, possibly mixed with rain showers after
midnight. Snow accumulation up to 1 inch. Lows 26 to 32. Chance
of precipitation 60 percent.
.MONDAY...Colder. Snow showers. Moderate snow accumulations.
Highs 32 to 38. Chance of snow 80 percent.
.MONDAY NIGHT...Colder. Mostly cloudy with a 30 percent chance of
snow showers in the evening, then partly cloudy after midnight.
Lows 15 to 21.
.TUESDAY...Not as cool. Mostly sunny. Highs 42 to 48.
.TUESDAY NIGHT...Mostly clear. Lows 21 to 27.
.WEDNESDAY...Mostly sunny in the morning then becoming partly
cloudy. Highs 46 to 52.
.WEDNESDAY NIGHT...Partly cloudy. Lows 22 to 28.
.THURSDAY...Mostly sunny. Highs 43 to 49.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 20s.
.FRIDAY...Mostly sunny. Highs 50 to 56.

$$

WYZ029-211000-
Flaming Gorge-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy. Lows around 32.
.SATURDAY...Partly cloudy in the morning then clearing. Highs
57 to 62. West winds around 15 mph in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows around 34. West winds around
15 mph until early morning.
.SUNDAY...Sunny. Highs 62 to 67.
.SUNDAY NIGHT...Partly cloudy. Lows around 38.
.MONDAY...Breezy. Partly cloudy with a 30 percent chance of rain
showers. Highs in the mid to upper 50s.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows in the upper 20s.
.TUESDAY...Partly cloudy in the morning then clearing. Highs
51 to 56.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 30s.
.WEDNESDAY...Warmer. Mostly sunny. Highs 60 to 65.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 30s.
.THURSDAY...Mostly sunny. Highs in the mid 50s to lower 60s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 30s.
.FRIDAY...Mostly sunny. Highs 63 to 68.

$$

WYZ022-211000-
Casper Mountain-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Cloudy. Chance of snow showers, possibly mixed
with rain showers after midnight, then chance of snow showers
early in the morning. Patchy fog through the night. Little or no
new snow accumulation. Near steady temperature around 30. Chance
of precipitation 50 percent.
.SATURDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs 50 to 56.
.SATURDAY NIGHT...Mostly clear. Lows 29 to 35.
.SUNDAY...Warmer. Mostly sunny. Highs 59 to 65.
.SUNDAY NIGHT...Mostly clear. Lows 31 to 37.
.MONDAY...Breezy, cooler. Partly cloudy with chance of rain
showers in the morning, then cloudy with rain showers likely in
the afternoon. Highs 46 to 52. Chance of showers 60 percent.
.MONDAY NIGHT...Breezy, colder. Mostly cloudy. Chance of snow
showers, possibly mixed with rain showers in the evening, then
chance of snow showers after midnight. Light snow accumulations.
Lows 21 to 27. Chance of precipitation 50 percent.
.TUESDAY...Mostly cloudy with a 20 percent chance of snow showers
in the morning, then partly cloudy in the afternoon. Highs 40 to
46.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 54 to 60.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a 20 percent chance of snow showers after midnight.
Lows 26 to 32.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
47 to 53.
.THURSDAY NIGHT...Mostly clear. Lows 28 to 34.
.FRIDAY...Not as cool. Mostly sunny. Highs 58 to 64.

$$

WYZ002-211000-
Absaroka Mountains-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly clear. Lows 22 to 28.
.SATURDAY...Mostly sunny. Highs 45 to 55. West winds around
15 mph late in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 24 to 30. West winds around
15 mph until early morning.
.SUNDAY...Mostly sunny. Highs 43 to 53. West winds around 15 mph
in the afternoon.
.SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. A 40 percent chance of snow showers, possibly mixed with
rain showers. Lows 24 to 30.
.MONDAY...Colder. Snow showers. Moderate snow accumulations.
Highs 30 to 36. Chance of snow 80 percent.
.MONDAY NIGHT...Breezy, colder. Mostly cloudy. Snow showers
likely in the evening, then chance of snow showers after
midnight. Light snow accumulations. Lows 15 to 21. Chance of snow
60 percent.
.TUESDAY...Not as cold. Partly cloudy in the morning then
clearing. Highs 34 to 44.
.TUESDAY NIGHT...Mostly clear. Lows 20 to 26.
.WEDNESDAY...Not as cool. Mostly sunny in the morning then
becoming partly cloudy. Highs 40 to 50.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of snow showers after
midnight. Lows 21 to 27. Chance of snow 30 percent.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
38 to 46.
.THURSDAY NIGHT...Mostly clear. Lows 24 to 30.
.FRIDAY...Not as cool. Mostly sunny. Highs 44 to 54.

$$

WYZ007-211000-
Owl Creek and Bridger Mountains-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy after midnight then becoming
partly cloudy. Lows 30 to 36. Northwest winds around 15 mph after
midnight.
.SATURDAY...Mostly sunny. Highs 56 to 64.
.SATURDAY NIGHT...Mostly clear. Lows 32 to 38.
.SUNDAY...Mostly sunny. Highs 59 to 67.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows 32 to 38.
.MONDAY...Breezy, colder, cloudy. Chance of rain showers,
possibly mixed with snow showers in the morning, then snow
showers likely, possibly mixed with rain showers in the
afternoon. Light snow accumulations. Highs 37 to 43. Chance of
precipitation 60 percent.
.MONDAY NIGHT...Breezy, colder, cloudy. Snow showers likely in
the evening, then chance of snow showers after midnight. Light
snow accumulations. Lows 22 to 28. Chance of snow 60 percent.
.TUESDAY...Partly cloudy in the morning then clearing. Highs
43 to 49.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 53 to 59.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with slight chance of snow showers after midnight. Lows
27 to 33. Chance of snow 20 percent.
.THURSDAY...Mostly sunny. Highs 48 to 56.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Not as cool. Mostly sunny. Highs 58 to 64.

$$

WYZ008-211000-
Bighorn Mountains West-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Partly cloudy. Lows 27 to 35.
.SATURDAY...Mostly sunny. Highs 47 to 57.
.SATURDAY NIGHT...Mostly clear. Lows 27 to 37.
.SUNDAY...Mostly sunny. Highs 49 to 59.
.SUNDAY NIGHT...Partly cloudy. Lows 27 to 37.
.MONDAY...Breezy, colder, cloudy. Snow showers likely, possibly
mixed with rain showers in the morning, then snow showers,
possibly mixed with rain showers in the afternoon. Moderate snow
accumulations. Highs 34 to 42. Chance of precipitation
80 percent.
.MONDAY NIGHT...Breezy, colder, cloudy. Snow showers likely in
the evening, then chance of snow showers after midnight. Light
snow accumulations. Lows 16 to 26. Chance of snow 70 percent.
.TUESDAY...Partly cloudy. Highs 36 to 46.
.TUESDAY NIGHT...Mostly clear. Lows 23 to 31.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 46 to 56.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers,
possibly mixed with snow showers in the evening, then chance of
snow showers after midnight. Lows 23 to 31. Chance of
precipitation 30 percent.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
40 to 50.
.THURSDAY NIGHT...Mostly clear. Lows 25 to 33.
.FRIDAY...Not as cool. Mostly sunny. Highs 49 to 59.

$$

WYZ009-211000-
Bighorn Mountains Southeast-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly cloudy with chance of rain showers and
snow showers after midnight, then partly cloudy early in the
morning. Lows 27 to 33. Chance of precipitation 30 percent.
.SATURDAY...Partly cloudy until late afternoon then clearing.
Highs 47 to 57.
.SATURDAY NIGHT...Mostly clear. Lows 28 to 34. Northwest winds
around 15 mph after midnight.
.SUNDAY...Mostly sunny. Highs 50 to 60.
.SUNDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Lows 29 to 35.
.MONDAY...Breezy, colder, cloudy. Snow showers likely, possibly
mixed with rain showers in the morning, then snow showers,
possibly mixed with rain showers in the afternoon. Light snow
accumulations. Highs 36 to 44. Chance of precipitation
80 percent.
.MONDAY NIGHT...Breezy, colder, cloudy. Snow showers likely in
the evening, then chance of snow showers after midnight. Light
snow accumulations. Lows 18 to 26. Chance of snow 70 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs 36 to 44.
.TUESDAY NIGHT...Mostly clear. Lows 23 to 29.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 47 to 57.
.WEDNESDAY NIGHT...Partly cloudy with chance of snow showers and
rain showers in the evening, then mostly cloudy with chance of
snow showers after midnight. Lows 24 to 30. Chance of
precipitation 30 percent.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
41 to 51.
.THURSDAY NIGHT...Mostly clear. Lows 27 to 33.
.FRIDAY...Not as cool. Mostly sunny. Highs 50 to 60.

$$

WYZ012-211000-
Teton and Gros Ventre Mountains-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Clear. Lows 22 to 28.
.SATURDAY...Mostly sunny. Highs 47 to 55.
.SATURDAY NIGHT...Mostly clear. Lows 24 to 30.
.SUNDAY...Mostly sunny. Highs 46 to 54.
.SUNDAY NIGHT...Partly cloudy with slight chance of rain showers
and snow showers in the evening, then mostly cloudy with snow
showers likely, possibly mixed with rain showers after midnight.
Snow accumulation up to 1 inch. Lows 27 to 33. Chance of
precipitation 60 percent.
.MONDAY...Colder. Snow showers, possibly mixed with rain showers.
Light snow accumulations. Highs 34 to 40. Chance of precipitation
80 percent.
.MONDAY NIGHT...Colder. Mostly cloudy in the evening then
becoming partly cloudy. A 30 percent chance of snow showers. Lows
19 to 25.
.TUESDAY...Not as cool. Partly cloudy in the morning then
clearing. Highs 40 to 48.
.TUESDAY NIGHT...Mostly clear. Lows 21 to 27.
.WEDNESDAY...Mostly sunny. Highs 44 to 52.
.WEDNESDAY NIGHT...Partly cloudy. Lows 23 to 29.
.THURSDAY...Mostly sunny. Highs 41 to 49.
.THURSDAY NIGHT...Mostly clear. Lows 25 to 31.
.FRIDAY...Not as cool. Mostly sunny. Highs 48 to 56.

$$

WYZ014-211000-
Wind River Mountains West-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Partly cloudy after midnight then clearing.
Lows 22 to 28.
.SATURDAY...Mostly sunny. Highs 44 to 54. Northwest winds around
15 mph late in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 24 to 30. Northwest winds
around 15 mph early in the evening.
.SUNDAY...Mostly sunny. Highs 44 to 54.
.SUNDAY NIGHT...Partly cloudy. Chance of rain showers and snow
showers after midnight. Lows 26 to 34. Chance of precipitation
40 percent.
.MONDAY...Snow showers likely, possibly mixed with rain showers.
Light snow accumulations. Highs 34 to 44. Chance of precipitation
70 percent.
.MONDAY NIGHT...Colder. Mostly cloudy. Snow showers likely in the
evening, then chance of snow showers after midnight. Light snow
accumulations. Lows 17 to 23. Chance of snow 60 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. A 30 percent chance of snow showers. Highs 34 to 44.
.TUESDAY NIGHT...Mostly clear. Lows 19 to 25.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 42 to 52.
.WEDNESDAY NIGHT...Partly cloudy. Lows 22 to 28.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
38 to 48.
.THURSDAY NIGHT...Partly cloudy in the evening then clearing.
Lows 23 to 29.
.FRIDAY...Not as cool. Mostly sunny. Highs 45 to 55.

$$

WYZ015-211000-
Wind River Mountains East-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Partly cloudy. Lows 21 to 29.
.SATURDAY...Mostly sunny. Highs 43 to 53. Northwest winds around
15 mph late in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 23 to 31. West winds around
15 mph until early morning.
.SUNDAY...Mostly sunny. Highs 44 to 54.
.SUNDAY NIGHT...Partly cloudy. Chance of snow showers, possibly
mixed with rain showers after midnight. Lows 25 to 33. Southwest
winds around 15 mph after midnight. Chance of precipitation
40 percent.
.MONDAY...Snow showers likely, possibly mixed with rain showers
in the morning, then snow showers, possibly mixed with rain
showers in the afternoon. Moderate snow accumulations. Highs
33 to 41. Chance of precipitation 80 percent.
.MONDAY NIGHT...Colder, cloudy. Snow showers likely in the
evening, then chance of snow showers after midnight. Light snow
accumulations. Lows 15 to 23. Chance of snow 60 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. A 30 percent chance of snow showers. Highs 32 to 42.
.TUESDAY NIGHT...Mostly clear. Lows 20 to 26.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 41 to 51.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of snow
showers after midnight. Lows 21 to 27.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
37 to 47.
.THURSDAY NIGHT...Mostly clear. Lows 23 to 29.
.FRIDAY...Not as cool. Mostly sunny. Highs 44 to 54.

$$

WYZ019-211000-
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Patchy fog after midnight. Cloudy with a
30 percent chance of rain showers and snow showers. Near steady
temperature in the lower 30s. North winds around 15 mph after
midnight.
.SATURDAY...Partly cloudy in the morning then clearing. Highs
56 to 62. West winds around 15 mph late in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows around 32. West winds around
15 mph early in the evening.
.SUNDAY...Sunny. Highs 62 to 68.
.SUNDAY NIGHT...Mostly clear. Lows around 35.
.MONDAY...Breezy, cooler. Partly cloudy in the morning then
becoming mostly cloudy. A 50 percent chance of rain showers.
Highs 48 to 54.
.MONDAY NIGHT...Breezy, colder. Mostly cloudy. Chance of snow
showers, possibly mixed with rain showers in the evening, then
chance of snow showers after midnight. Lows in the mid 20s.
Chance of precipitation 40 percent.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Highs 44 to 50.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs 57 to 63.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of snow
showers after midnight. Lows around 30.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
51 to 57.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Warmer. Mostly sunny. Highs 60 to 66.

$$

WYZ024-211000-
Salt River and Wyoming Ranges-
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Mostly clear. Lows around 28.
.SATURDAY...Mostly sunny. Highs 49 to 57. Northwest winds around
15 mph in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 26 to 32. West winds around
15 mph in the evening.
.SUNDAY...Mostly sunny. Highs 52 to 60.
.SUNDAY NIGHT...Partly cloudy. Chance of rain showers, possibly
mixed with snow showers after midnight. Lows 29 to 35. Chance of
precipitation 40 percent.
.MONDAY...Breezy. Mostly cloudy. Snow showers likely, possibly
mixed with rain showers in the morning, then chance of rain
showers and snow showers in the afternoon. Highs 39 to 47. Chance
of precipitation 60 percent.
.MONDAY NIGHT...Breezy, colder. Partly cloudy with a 20 percent
chance of snow showers. Lows 22 to 28.
.TUESDAY...Partly cloudy. Highs 43 to 51.
.TUESDAY NIGHT...Mostly clear. Lows 23 to 29.
.WEDNESDAY...Mostly sunny. Highs 48 to 56.
.WEDNESDAY NIGHT...Partly cloudy. Lows 26 to 32.
.THURSDAY...Mostly sunny. Highs 47 to 53.
.THURSDAY NIGHT...Mostly clear. Lows 27 to 33.
.FRIDAY...Not as cool. Mostly sunny. Highs 53 to 61.

$$

WYZ030-211000-
East Sweetwater County-
Including the city of Wamsutter
147 AM MDT Sat Apr 21 2018

.REST OF TONIGHT...Cloudy. Chance of rain showers and snow
showers after midnight. Lows around 31. North winds around
15 mph. Chance of precipitation 30 percent.
.SATURDAY...Partly cloudy until late afternoon then clearing.
Highs 57 to 61. West winds around 15 mph in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows around 32. West winds around
15 mph until early morning.
.SUNDAY...Sunny. Highs 63 to 67.
.SUNDAY NIGHT...Mostly clear. Lows around 36.
.MONDAY...Breezy. Partly cloudy in the morning then becoming
mostly cloudy. A 40 percent chance of rain showers. Highs in the
mid 50s.
.MONDAY NIGHT...Breezy, colder. Partly cloudy. Chance of rain
showers and snow showers in the evening. Lows in the mid 20s.
Chance of precipitation 30 percent.
.TUESDAY...Breezy. Partly cloudy. Highs near 50.
.TUESDAY NIGHT...Mostly clear. Lows in the mid to upper 20s.
.WEDNESDAY...Not as cool. Mostly sunny. Highs near 60.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 30s.
.THURSDAY...Mostly sunny. Highs in the mid to upper 50s.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 30s.
.FRIDAY...Mostly sunny. Highs in the 60s.

$$





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