Severe Weather Threat for Northwest Wyoming Today

The National Weather Service
Building a Weather-Ready Nation

Summary | Monitoring & Reporting | Safety

A strong low pressure system will move toward western Wyoming this afternoon.  Strong thunderstorms may form ahead of an approaching cold front over the area.  These storms will be fast moving mainly from south to north and could produce very strong to severe wind as they move across Star Valley, Jackson Hole, and Yellowstone National Park.  Hail shold be present in stronger storms but wind will be the primary threat.  Once the front moves through this afternoon and evening, snow is possible in the high country and over all of Yellowstone National Park so be prepared and remember a jacket if you need to be outside this evening.

Please call us at 1-800-211-1448 with any reports of hail or strong wind and any associated damage.  You can also report via facebook and post any pictures of weather damage.  Just go to


SPC Wind and Hail Threat For Today
SPC's Damaging Wind Threat Area SPC's Hail Threat Area




Anyone who has plans to visit Yellowstone National Park, Teton National Park, or Jackson Hole is urged to pay very close attention to the weather today. Thunderstorms can and do form suddenly and could turn a sunny day into a stormy one in a matter of minutes. Thunderstorms that do form today are capable of producing hail, damaging winds, and frequent lightning. You do not want to find yourself without shelter in these storms!

Please keep an eye on our website for changes and updates to the forecast today, and especially on Saturday for possible watches and warnings.

For more information on the weekend weather, please view this week's video briefing, and take a look at the Hazardous Weather Outlook

Monitor our Severe Weather Summary Page for current Warnings, Watches, and Advisories. What's the difference?
Current Weather Story Check the latest Weather Story graphic for an overview of the area forecast.
NWS Riverton Radar Check out what's on the radar.
Riverton | Pocatello | Cheyenne | Billings | Salt Lake City | Rapid City | Mosaic
Submit storm reports/images and keep up to date with us on Facebook!
Other reporting methods include eSpotter, email (, or by phone at 1-800-211-1448.
Check the latest Public Information Statement for the latest storm reports.
WyDoT's Webpage Monitor current road conditions by visiting the Wyoming Dept. of Transportation (WYDOT) or by calling 5-1-1.

Emergency Kit      |      Thunderstorm & Lightning Safety

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