Alert archive / North Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 48, NWS Bismarck, ND

June 20, 20256 counties in North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 20, 2025, 7:03 PM MDT for 6 counties in North Dakota. It was in force for 57 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: Jun 20, 2025, 7:03 PM MDT (01:03 UTC)
Expired: Jun 20, 2025, 8:00 PM MDT
In force: 57 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.0 in
Wind: 70.0 mph

Counties Adams County, ND, Grant County, ND, Hettinger County, ND, Morton County, ND, Sioux County, ND, Stark County, ND

The radar

The Bismarck radar (KBIS), 98 km from the middle of the area, began a volume at 01:07 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 20, 2:46 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

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 Jun 20, 4:40 PM MDT, 2 hours 23 minutes earlier.

Area forecast discussion, Jun 20, 4:40 PM MDT, 2 hours 23 minutes before

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Hazardous weather outlook, Jun 20, 2:02 PM MDT, 5 hours 1 minute before

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In the hours before

Special weather statement, Jun 20, 5:05 PM MDT, 1 hour 58 minutes before

Special Weather Statement
National Weather Service Bismarck ND
505 PM MDT Fri Jun 20 2025

NDZ017-018-032-202330-
McKenzie ND-Billings ND-Dunn ND-
505 PM MDT Fri Jun 20 2025

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL DUNN...NORTHEASTERN
BILLINGS AND SOUTH CENTRAL MCKENZIE COUNTIES THROUGH 530 PM MDT...

At 504 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles southwest of Grassy Butte, or 37 miles northeast of Beach,
moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Grassy Butte and Fairfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
southwestern North Dakota.

&&

LAT...LON 4715 10346 4733 10352 4760 10301 4724 10279
TIME...MOT...LOC 2304Z 256DEG 17KT 4726 10339

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

HEINERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 6:09 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams, Bowman, Hettinger, Slope	66 min
Jun 20, 6:19 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Billings, Dunn, Stark	26 min
Jun 20, 6:30 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Billings, Dunn, Slope, Stark	60 min
Jun 20, 6:42 PM MDT	Special Weather Statement	BIS	Stutsman	18 min
Jun 20, 6:46 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Stutsman	59 min
Jun 20, 7:04 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dunn, McLean, Mercer, Morton, Oliver, Stark	56 min
Jun 20, 7:10 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Stutsman	53 min
Jun 20, 7:13 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Dunn, Mercer, Morton, Stark	32 min
Jun 20, 7:20 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Grant, Morton	25 min
Jun 20, 7:25 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	LaMoure, Stutsman	40 min
Jun 20, 7:31 PM MDT	Tornado Warning	BIS	Stutsman	29 min
Jun 20, 7:38 PM MDT	Tornado Warning	BIS	Grant, Morton	27 min
Jun 20, 7:40 PM MDT	Tornado Warning	BIS	LaMoure, Stutsman	35 min
Jun 20, 7:45 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Morton, Oliver	30 min
Jun 20, 7:48 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Grant, Morton, Sioux	27 min
Jun 20, 7:55 PM MDT	Tornado Warning	BIS	Burleigh, McLean, Morton, Oliver	35 min
Jun 20, 7:58 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Burleigh, Emmons, Morton, Oliver	62 min
Jun 20, 8:01 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, McHenry, McLean, Mercer, Oliver, Sheridan and 1 more	44 min
Jun 20, 8:15 PM MDT	Tornado Warning	BIS	LaMoure, Stutsman	30 min
Jun 20, 8:19 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Emmons, Sioux	56 min
Jun 20, 8:36 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Burleigh, Emmons, Kidder, Logan, Stutsman	54 min
Jun 20, 8:37 PM MDT	Tornado Warning	BIS	Burleigh, Sheridan	23 min
Jun 20, 8:40 PM MDT	Tornado Warning	BIS	LaMoure	35 min
Jun 20, 8:44 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, McHenry, McLean, Mercer, Oliver, Pierce and 2 more	61 min
Jun 20, 9:00 PM MDT	Tornado Warning	BIS	Burleigh, Sheridan	30 min
Jun 20, 9:07 PM MDT	Tornado Warning Tornado observed	BIS	Kidder, Stutsman	38 min
Jun 20, 9:12 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dickey, McIntosh	33 min
Jun 20, 9:21 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Foster, Kidder, LaMoure, Logan, Stutsman, Wells	54 min
Jun 20, 9:29 PM MDT	Tornado Warning	BIS	Stutsman	31 min
Jun 20, 9:36 PM MDT	Tornado Warning	BIS	Sheridan, Wells	24 min
Jun 20, 9:40 PM MDT	Severe Thunderstorm Warning	BIS	Dickey	50 min
Jun 20, 9:42 PM MDT	Tornado Warning Tornado observed	BIS	Foster	18 min
Jun 20, 9:46 PM MDT	Tornado Warning	BIS	Wells	29 min
Jun 20, 9:48 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, Kidder, Sheridan, Wells	57 min
Jun 20, 10:05 PM MDT	Areal Flood Advisory	BIS	Burleigh, McLean, Sheridan	5 hr
Jun 20, 10:10 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Foster, Kidder, Stutsman, Wells	65 min
Jun 20, 10:12 PM MDT	Severe Thunderstorm Warning	BIS	LaMoure	33 min
Jun 20, 10:36 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Kidder, Stutsman	54 min
Jun 20, 11:09 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Foster, Kidder, Stutsman, Wells	66 min
Jun 20, 11:25 PM MDT	Severe Thunderstorm Warning	BIS	Stutsman	50 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; radar from the NEXRAD Level II archive.