Freeze Warning
URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
143 AM MDT Tue Apr 28 2026
IDZ051>054-281600-
/O.NEW.KPIH.FZ.A.0004.260429T0900Z-260429T1500Z/
/O.CON.KPIH.FZ.W.0009.260428T0900Z-260428T1500Z/
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-
Including the cities of Craters of the Moon NM, Blackfoot, St.
Anthony, American Falls, Carey, Richfield, Pocatello, Shoshone,
INL, Idaho Falls, Shelley, Rexburg, Fort Hall, and Mud Lake
143 AM MDT Tue Apr 28 2026
...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING...
* WHAT...Sub-freezing temperatures of 25 to 32 expected.
* WHERE...Shoshone/Lava Beds, Arco/Mud Lake Desert, Lower Snake
River Plain, and Upper Snake River Plain.
* WHEN...For the Freeze Warning, until 9 AM MDT this morning. For
the Freeze Watch, from late tonight through Wednesday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
646 AM MDT Tue Apr 28 2026
WYZ112-114-282100-
/O.CON.KCYS.WW.Y.0015.000000T0000Z-260428T2100Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
646 AM MDT Tue Apr 28 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
* WHAT...Total snow accumulations between 6 and 12 inches. Locally
higher amounts are possible at the peaks.
* WHERE...Sierra Madre Range and Snowy Range.
* WHEN...Until 3 PM MDT this afternoon.
* IMPACTS...Outdoor recreation could become dangerous to those
caught unprepared for hazardous winter conditions. Hunters,
hikers, and snowmobilers may become disoriented and lost due to
low visibility in falling and blowing snow.
* ADDITIONAL DETAILS...A break in snowfall is expected through the
morning with another wave of snowfall this afternoon through 3 PM
Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
MN
Freeze Watch
URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
143 AM MDT Tue Apr 28 2026
IDZ051>054-281600-
/O.NEW.KPIH.FZ.A.0004.260429T0900Z-260429T1500Z/
/O.CON.KPIH.FZ.W.0009.260428T0900Z-260428T1500Z/
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-
Including the cities of Craters of the Moon NM, Blackfoot, St.
Anthony, American Falls, Carey, Richfield, Pocatello, Shoshone,
INL, Idaho Falls, Shelley, Rexburg, Fort Hall, and Mud Lake
143 AM MDT Tue Apr 28 2026
...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING...
* WHAT...Sub-freezing temperatures of 25 to 32 expected.
* WHERE...Shoshone/Lava Beds, Arco/Mud Lake Desert, Lower Snake
River Plain, and Upper Snake River Plain.
* WHEN...For the Freeze Warning, until 9 AM MDT this morning. For
the Freeze Watch, from late tonight through Wednesday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
258 AM MDT Tue Apr 28 2026
WYZ001>020-022>030-291300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-
Southeast Bighorn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
258 AM MDT Tue Apr 28 2026
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...This Afternoon and Tonight.
Remaining cool and unsettled with scattered rain and snow showers
as well as isolated afternoon thunderstorms.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday and Thursday...Cool and unsettled weather continuing.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
139 AM MDT Tue Apr 28 2026
COZ001>014-017>023-UTZ022>025-027>029-290745-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
139 AM MDT Tue Apr 28 2026
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Accumulating snow will be possible over the northern mountains and
travel corridors. Icy to snowpacked conditions are most likely to
occur through the mid morning with most roads melting snow as it
falls through the afternoon. Isolated to widely scattered
thunderstorm development is possible this afternoon with small hail
and lightning the main threats.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Unsettled, cooler, and wetter weather continues through the week and
into the weekend as a series of systems work through the
Intermountain West and Rockies. Winter driving conditions will be
possible at times...mainly during the overnight and morning hours
over the higher passes.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Cheyenne WY
615 PM MDT Mon Apr 27 2026
NEZ002-003-019>021-054-055-095-096-WYZ101>119-302300-Dawes County-
Box Butte County-Scotts Bluff County-Banner County-Morrill County-
Kimball County-Cheyenne County-Northern Sioux County-Southern Sioux
County-Converse County Lower Elevations-Niobrara County-North
Laramie Range-Ferris/Seminoe/Shirley Mountains-Shirley Basin-Central
Laramie Range and Southwest Platte County-East Platte County-Goshen
County-Central Carbon County-North Snowy Range Foothills-Southwest
Carbon County-Sierra Madre Range-Upper North Platte River Basin-
Snowy Range-Laramie Valley-South Laramie Range-South Laramie Range
Foothills-Central Laramie County-East Laramie County-
615 PM MDT Mon Apr 27 2026
This text Hazardous Weather Outlook product has been
discontinued as of April 13th 2026. Information formerly contained
within this product can now be found online in graphical form at
https://www.weather.gov/erh/ghwo?wfo=cys and via the NWS Cheyenne
Weather Story and/or social media outlets.
This reminder about the sunset of the text Hazardous Weather Outlook
will remain in place until April 30th 2026.
$$
