Alert archive / North Dakota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 339, NWS Bismarck, ND

September 6, 2026Morton County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Sep 6, 2026, 12:11 PM CDT for Morton County, North Dakota. It was in force for 49 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: Sep 6, 2026, 12:11 PM CDT (17:11 UTC)
Expired: Sep 6, 2026, 1:00 PM CDT
In force: 49 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Morton County, ND

The radar

The Bismarck radar (KBIS), 40 km from the middle of the area, began a volume at 17:14 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.

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 Sep 6, 9:58 AM CDT, 2 hours 13 minutes earlier.

Area forecast discussion, Sep 6, 9:58 AM CDT, 2 hours 13 minutes before

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Hazardous weather outlook, Sep 6, 9:53 AM CDT, 2 hours 18 minutes before

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In the hours before

Special weather statement, Sep 6, 10:48 AM CDT, 1 hour 23 minutes before

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Local storm report, Sep 6, 10:54 AM CDT, 1 hour 17 minutes before

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Special weather statement, Sep 6, 11:02 AM CDT, 1 hour 9 minutes before

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Local storm report, Sep 6, 11:37 AM CDT, 34 minutes before

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Special weather statement, Sep 6, 11:50 AM CDT, 21 minutes before

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Special weather statement, Sep 6, 12:06 PM CDT, 5 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
Sep 6, 8:57 AM CDT	Special Weather Statement	BIS	Billings	33 min
Sep 6, 9:23 AM CDT	Special Weather Statement	BIS	Dunn	37 min
Sep 6, 9:48 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Stark	57 min
Sep 6, 9:50 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Morton, Stark	55 min
Sep 6, 10:03 AM CDT	Special Weather Statement	BIS	Dunn	27 min
Sep 6, 10:32 AM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver, Stark	58 min
Sep 6, 10:48 AM CDT	Special Weather Statement	BIS	Mercer	27 min
Sep 6, 11:02 AM CDT	Special Weather Statement	BIS	McLean	28 min
Sep 6, 11:11 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	64 min
Sep 6, 11:50 AM CDT	Special Weather Statement	BIS	Mercer	40 min
Sep 6, 12:06 PM CDT	Special Weather Statement	BIS	Morton	39 min
Sep 6, 12:33 PM CDT	Special Weather Statement	BIS	Burleigh	42 min
Sep 6, 12:53 PM CDT	Areal Flood Advisory	BIS	Burleigh, Morton	2 hr
Sep 6, 1:10 PM CDT	Special Weather Statement	BIS	Bottineau	35 min
Sep 6, 1:50 PM CDT	Special Weather Statement	BIS	Rolette	40 min
Sep 6, 2:14 PM CDT	Special Weather Statement	BIS	Kidder	46 min
Sep 6, 2:54 PM CDT	Special Weather Statement	BIS	Wells	36 min
Sep 6, 2:56 PM CDT	Special Weather Statement	BIS	Stutsman	34 min
Sep 6, 5:15 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	60 min
Sep 6, 6:02 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	43 min
Sep 6, 6:44 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	McKenzie	61 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2026 Every severe thunderstorm warning in 2026

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.