Severe Thunderstorm Warning Issued for Grant and Morton Counties, ND
This alert is no longer in effect.
NOAA issued it on August 12, 2026, 12 days 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 Bismarck has issued a Severe Thunderstorm Warning for northwestern Grant and Morton Counties in south central North Dakota until 10:00 PM CDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- South Central North Dakota
- Issued
- August 12, 2026
- Issuing authority
- NWS Bismarck ND
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 12 days ago; use the issuing agency's live warning service for current conditions in South Central North Dakota.
Alert Details
Severe Thunderstorm Warning issued by NWS Bismarck ND. Effective from August 11 at 9:15 PM CDT until August 11 at 10:00 PM CDT.
Affected Areas
Northwestern Grant County and northwestern Morton County in south central North Dakota. Locations impacted include Carson and Heart Butte Dam.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows.
Expected Conditions
Ping pong ball size hail (1.50 inches) and 60 mph wind gusts. Radar indicated.
Timeline
The warning is in effect from 9:15 PM CDT to 10:00 PM CDT on August 11, 2026.
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 (594 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 12, 2026.
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