Severe Thunderstorm Warning Issued for South Central Fremont County, WY

Source: NOAA · Fremont County, Wyoming

This alert is no longer in effect.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.

NWS Riverton has issued a Severe Thunderstorm Warning for south central Fremont County in central Wyoming until 5:45 PM MDT on May 13.

Read this weather record in 30 seconds

Record type
Severe Thunderstorm Warning
Affected area
Fremont 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 Fremont County, Wyoming.

Alert Details

A Severe Thunderstorm Warning has been issued by the National Weather Service in Riverton WY. The alert is effective from 4:58 PM MDT until 5:45 PM MDT on May 13, 2026.

Affected Areas

The warning covers south central Fremont County in central Wyoming, including areas near South Pass City, which is 26 miles south of Lander.

What You Should Do

For your protection, move to an interior room on the lowest floor of a building.

Expected Conditions

A severe thunderstorm was located near South Pass City at 4:58 PM MDT, moving northeast at 55 mph. Hazards include 60 mph wind gusts and hail up to 0.75 inches. Expect damage to roofs, siding, and trees.

Timeline

The alert is in effect from 4:58 PM MDT to 5:45 PM MDT on May 13, 2026.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Riverton has issued a Severe Thunderstorm Warning for south central Fremont County in central Wyoming until 5:45 PM MDT on May 13.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Fremont County, Wyoming. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.