Severe Thunderstorm Warning Issued for Southwestern Teton County, WY
This alert is no longer in effect.
NOAA issued it on May 21, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Severe Thunderstorm Warning for southwestern Teton County in northwestern Wyoming until 5:45 PM MDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Southwestern Teton County, Wyoming
- Issued
- May 21, 2026
- Issuing authority
- NWS Riverton WY
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Southwestern Teton County, Wyoming.
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service in Riverton, WY. The alert is effective from May 13 at 4:45 PM MDT until May 13 at 5:45 PM MDT.
Affected Areas
The warning covers southwestern Teton County in northwestern Wyoming, including the following locations: Teton County Fairgrounds, Gros Ventre Campground, Signal Mountain Lodge, Jackson Lake, Crystal Creek Campground, Jackson Lake Lodge, Jackson Hole Airport, Jackson National Fish Hatchery, Flagg Ranch Village, and Granite Creek Campground.
What You Should Do
For your protection move to an interior room on the lowest floor of a building. If on or near a lake, get away from the water and move indoors or inside a vehicle. Remember, lightning can strike out to 15 miles from the parent thunderstorm. If you can hear thunder, you are close enough to be struck by lightning. Move to safe shelter now! Do not be caught on the water in a thunderstorm.
Expected Conditions
At 4:44 PM MDT, a severe thunderstorm was located over Tetonia, which is near Driggs, moving northeast at 45 mph. Hazards include 60 mph wind gusts and hail up to 0.75 inches. Expect damage to roofs, siding, and trees.
Timeline
The warning is in effect from May 13 at 4:45 PM MDT until May 13 at 5:45 PM MDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,306 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 21, 2026.
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