Winter Storm Warnings
April 2 2026
* WHAT...Heavy snow expected. Total snow accumulations between 12
and 18 inches. Accumulation up to 20 inches possible in the peaks.
Winds gusting as high as 60 mph.
* WHERE...Sierra Madre Range and Snowy Range.
* WHEN...Until 6 PM MDT Friday.
* IMPACTS...Outdoor recreation could become life threatening to
those caught unprepared for severe winter conditions. Hikers and
snowmobilers may easily become disoriented. Frostbite and
hypothermia can develop quickly.
* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches
for the North Snowy Range Foothills including I-80. Total snow
accumulations of 6 to 10 inches in the northern portion of the
Northern Laramie Range.
* WHERE...North Snowy Range Foothills including Arlington and Elk
Mountain along Interstate 80, and North Laramie Range.
* WHEN...From 6 AM to 6 PM MDT Friday.
* IMPACTS...Travel could be very difficult.
* WHAT...Snow expected. Total snow accumulations from 1 to 5 inches,
with higher amounts expected in far southeast Johnson County,
around Midwest and Edgerton, Hiland, and the south side of Casper.
Casper Mountain is expected to see 6 to 8 inches of snow. Winds
gusting as high as 35 to 40 mph.
* WHERE...Casper Mountain, Natrona County Lower Elevations, and
Southeast Johnson County.
* WHEN...From 6 AM to 6 PM MDT Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Plan on slippery road
conditions.
* WHAT...Snow. Total snow accumulations between 2 and 4 inches.
Winds gusting as high as 35 mph.
* WHERE...Jackson Hole and Star Valley.
* WHEN...Until 6 PM MDT Friday.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the Thursday evening and Friday morning commutes.
* ADDITIONAL DETAILS...Warmer air and ground temperatures will allow
some of the snow to melt, especially on roads. However, drivers
should be prepared for slick spots, including on bridges and
during periods of heavier snowfall rates.
* WHAT...Heavy snow. Total snow accumulations between 12 and 18
inches and up to 24 inches along the western slopes of the Tetons.
6 to 10 inches of total snow accumulation is expected in
Yellowstone National Park, with amounts up to 18 inches along
higher elevations across southern portions of the park. The
Mammoth area will see 1 to 3 inches. Winds could gust as high as
45 mph.
* WHERE...Teton and Gros Ventre Mountains and Yellowstone National
Park.
* WHEN...Until 6 PM MDT Friday.
* IMPACTS...Travel could be very difficult, including over Teton
Pass and Togwotee Pass.
* WHAT...Snow expected, heavy at times. Total snow accumulations
between 4 and 6 inches, primarily between 3 AM and 12 PM.
North-northwest winds gusting 35 to 40 mph.
* WHERE...Northeast Johnson County.
* WHEN...From 1 AM to 6 PM MDT Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be difficult.
* WHAT...Heavy snow. Total snow accumulations between 10 and 16
inches possible. 3 to 6 inches are expected along South Pass and
Salt River Pass. Winds could gust as high as 50 mph.
* WHERE...Wind River Mountains East, Wind River Mountains West, and
Salt River and Wyoming Ranges.
* WHEN...Until 6 PM MDT Friday.
* IMPACTS...Travel could be very difficult, including over South
Pass and Salt River Pass.
* WHAT...Snow. Total snow accumulations between 6 and 12 inches
along higher terrain. Winds gusting as high as 55 mph.
* WHERE...Absaroka Mountains.
* WHEN...Until 6 PM MDT Friday.
* IMPACTS...Travel could be very difficult.
* WHAT...Heavy snow. Total snow accumulations between 12 and 20
inches, with the highest amounts on the western slopes of the
northern Bighorns. Winds could gust as high as 55 mph.
* WHERE...Bighorn Mountains Southeast and Bighorn Mountains West.
* WHEN...From 6 PM this evening to 6 PM MDT Friday.
* IMPACTS...Travel could be very difficult, including over Granite
Pass and Powder River Pass.
* WHAT...Snow expected. Total snow accumulations between 2 and 6
inches, with the higher amounts along the foothills of the Bighorn
Mountains from Shell to Ten Sleep to Big Trails. Northwest winds
gusting as high as 35 to 40 mph.
* WHERE...Southeast Bighorn Basin and North Bighorn Basin.
* WHEN...From 11 PM this evening to noon MDT Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be difficult.
* WHAT...Northwest winds 35 to 45 mph with gusts up to 70 mph
expected.
* WHERE...Central Laramie County.
* WHEN...From 9 PM this evening to 6 PM MDT Friday.
* IMPACTS...Mainly to transportation. Strong cross winds will be
hazardous to light weight or high profile vehicles, including
campers and tractor trailers.
* WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected.
* WHERE...Bordeaux area along Interstate 25 between Chugwater and
Wheatland.
* WHEN...From 6 PM this evening to 6 PM MDT Friday.
* IMPACTS...Mainly to transportation. Strong cross winds will be
hazardous to light weight or high profile vehicles, including
campers and tractor trailers.
* WHAT...West winds 30 to 40 mph with gusts up to 70 mph expected.
* WHERE...North Snowy Range Foothills including Arlington and Elk
Mountain along Interstate 80.
* WHEN...Until 6 PM MDT Friday.
* IMPACTS...Mainly to transportation. Strong cross winds will be
hazardous to light weight or high profile vehicles, including
campers and tractor trailers.
* WHAT...West winds 30 to 50 mph with gusts up to 80 mph.
* WHERE...South Laramie Range and Foothills including the Interstate
80 Summit between Cheyenne and Laramie.
* WHEN...Until 9 PM MDT Friday.
* IMPACTS...Mainly to transportation. Strong cross winds will be
hazardous to light weight or high profile vehicles, including
campers and tractor trailers.