New Winter Storm Warning: Heavy Snow as 19 Inches Looms in Wyoming
Heavy snow is in the forecast, despite the calendar showing early May.
The National Weather Service is forecasting a strong cold front that continues to move through the Northern Plains and will progress southeastward through the Central Plains, reaching the Southern Plains and Southeast by the middle of the week.
Meanwhile, a potent upper-level trough will eject southward and deepen as it merges with a cutoff low located over southern California.
As a result, the systems will combine into a busy weather pattern from the Southern Plains, the Midwest, and the Northeast.
"Widespread showers and thunderstorms have already began in the Great Basin and Central Rockies with higher elevation snow and will continue to increase tomorrow into Wednesday where moderate to heavy snow is possible in the Rockies and the Front Range of Colorado," the NWS said.
Heavy Snow Coming to Wyoming
The National Weather Service initially instituted a winter storm watch for Wyoming, but those have now been upgraded into full winter storm warnings.
"A late season, significant snow storm will move into the area tonight and continue through Wednesday morning. All Winter Storm Watches have been upgraded to Winter Storm Warnings and the Sierra Madre Range has been added to a Winter Weather Advisory," the Cheyenne office of the National Weather Service said.
May 4th, 4PM - A late season, significant snow storm will move into the area tonight and continue through Wednesday morning. All Winter Storm Watches have been upgraded to Winter Storm Warnings and the Sierra Madre Range has been added to a Winter Weather Advisory. #WYwx#NEwxpic.twitter.com/3XGsNUwvlq
— NWS Cheyenne (@NWSCheyenne) May 4, 2026
The latest forecast from the Cheyenne office shows up to 19 inches of snow near Wind River Peak, while Tabletop Peak and Powder River Pass see 16 inches of snowfall. Gannett Peak will also see over a foot of snow with up to 15 inches falling in the region.
The National Weather Service warned against outdoor activities across much of the state.
"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," it said.
The winter storm warnings will last through Wednesday morning.
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This story was originally published by Men's Journal on May 5, 2026, where it first appeared in the News section. Add Men's Journal as a Preferred Source by clicking here.
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This story was originally published May 5, 2026 at 1:30 AM.