Alert archive / North Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 210, NWS Bismarck, ND

August 5, 20254 counties in North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 5, 2025, 6:17 AM MDT for 4 counties in North Dakota. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 5, 2025, 6:17 AM MDT (12:17 UTC)
Expired: Aug 5, 2025, 7:02 AM MDT
In force: 45 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Grant County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND

The radar

The Bismarck radar (KBIS), 59 km from the middle of the area, began a volume at 12:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 0.3 hours before the alert went out and 64 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 515 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 970 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 5, 5:50 AM MDT, 27 minutes earlier.

Area forecast discussion, Aug 5, 5:50 AM MDT, 27 minutes before

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Hazardous weather outlook, Aug 5, 5:35 AM MDT, 42 minutes before

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In the hours before

Special weather statement, Aug 5, 3:49 AM MDT, 2 hours 28 minutes before

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Special weather statement, Aug 5, 4:14 AM MDT, 2 hours 3 minutes before

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Special weather statement, Aug 5, 4:33 AM MDT, 1 hour 44 minutes before

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Special weather statement, Aug 5, 5:19 AM MDT, 58 minutes before

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Special weather statement, Aug 5, 5:38 AM MDT, 39 minutes before

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Special weather statement, Aug 5, 6:00 AM MDT, 17 minutes before

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The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 4, 6:10 PM MDT	Special Weather Statement	BIS	Emmons	35 min
Aug 5, 2:35 AM MDT	Special Weather Statement	BIS	Adams	25 min
Aug 5, 2:59 AM MDT	Special Weather Statement	BIS	Hettinger	31 min
Aug 5, 3:49 AM MDT	Special Weather Statement	BIS	Hettinger	26 min
Aug 5, 4:14 AM MDT	Special Weather Statement	BIS	Hettinger	31 min
Aug 5, 4:33 AM MDT	Special Weather Statement	BIS	Sioux	27 min
Aug 5, 4:39 AM MDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	51 min
Aug 5, 5:32 AM MDT	Areal Flood Advisory	BIS	Stark	3 hr
Aug 5, 5:38 AM MDT	Special Weather Statement	BIS	Dunn	37 min
Aug 5, 6:00 AM MDT	Special Weather Statement	BIS	Morton	30 min
Aug 5, 7:18 AM MDT	Special Weather Statement	BIS	Morton, Sioux	27 min
Aug 5, 7:44 AM MDT	Special Weather Statement	BIS	Emmons, Morton, Sioux	31 min
Aug 5, 8:14 AM MDT	Special Weather Statement	BIS	Burleigh	31 min
Aug 5, 8:30 AM MDT	Special Weather Statement	BIS	Emmons	30 min
Aug 5, 8:59 AM MDT	Special Weather Statement	BIS	Emmons	31 min
Aug 5, 10:30 AM MDT	Special Weather Statement	BIS	Emmons	30 min
Aug 5, 12:25 PM MDT	Special Weather Statement	BIS	Oliver	35 min
Aug 5, 2:24 PM MDT	Special Weather Statement	BIS	Sheridan	36 min
Aug 5, 2:56 PM MDT	Severe Thunderstorm Warning	BIS	Kidder	49 min
Aug 5, 3:02 PM MDT	Severe Thunderstorm Warning	BIS	Sheridan	46 min
Aug 5, 3:25 PM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, McIntosh	65 min
Aug 5, 3:39 PM MDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, McIntosh	51 min
Aug 5, 3:44 PM MDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	61 min
Aug 5, 3:46 PM MDT	Severe Thunderstorm Warning	BIS	Dickey	59 min
Aug 5, 4:34 PM MDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	41 min
Aug 5, 4:43 PM MDT	Tornado Warning	BIS	Dickey, McIntosh	32 min
Aug 5, 4:58 PM MDT	Special Weather Statement	BIS	Stutsman	32 min
Aug 5, 5:02 PM MDT	Tornado Warning	BIS	Dickey, McIntosh	28 min
Aug 5, 5:12 PM MDT	Flash Flood Warning	BIS	Dickey, McIntosh	6 hr
Aug 5, 5:12 PM MDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	63 min
Aug 5, 5:23 PM MDT	Tornado Warning	BIS	Dickey	24 min
Aug 5, 5:38 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dickey	67 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2025 Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.