Severe Thunderstorm Warning for Custer, Fall River Counties SD and Weston County WY
This alert is no longer in effect.
NOAA issued it on July 27, 2026, 3 weeks 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 Rapid City has issued a Severe Thunderstorm Warning for western Custer and Fall River counties in South Dakota and southeastern Weston County in Wyoming until 7:15 PM MDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Southwestern South Dakota and Northeastern Wyoming
- Issued
- July 27, 2026
- Issuing authority
- NWS Rapid City SD
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 weeks ago; use the issuing agency's live warning service for current conditions in Southwestern South Dakota and Northeastern Wyoming.
Alert Details
Severe Thunderstorm Warning issued by NWS Rapid City SD. Effective from 2026-06-20T18:12:00-06:00 until 2026-06-20T19:15:00-06:00.
Affected Areas
Western Custer County in southwestern South Dakota; Western Fall River County in southwestern South Dakota; Southeastern Weston County in northeastern Wyoming. Locations impacted include Newcastle, Edgemont, Dewey, Osage, Provo, Morrisey, Clareton, Rumford, Ardmore, Elk Mountain Lookout, Burdock and Jewel Cave National Monument.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows.
Expected Conditions
60 mph wind gusts and small hail. Expect damage to roofs, siding, and trees. Storms moving east at 25 mph.
Timeline
Alert effective immediately on June 20 at 6:12 PM MDT and expires at 7:15 PM MDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →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.
Similar body length
Nearest notices by article body length (817 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 27, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.