Alert archive / North Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 8, NWS Bismarck, ND

June 15, 2025Adams County, Hettinger County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 15, 2025, 11:57 PM MDT for Adams County, Hettinger County, North Dakota. It was in force for 63 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 15, 2025, 11:57 PM MDT (05:57 UTC)
Expired: Jun 16, 2025, 1:00 AM MDT
In force: 63 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.88 in
Wind: 70.0 mph

Counties Adams County, ND, Hettinger County, ND

The radar

The Bismarck radar (KBIS), 144 km from the middle of the area, began a volume at 05:58 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 15, 9:58 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.0 hours before the alert went out and 148 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: 1725 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1256 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.9

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 Jun 15, 9:31 PM MDT, 2 hours 26 minutes earlier.

Area forecast discussion, Jun 15, 9:31 PM MDT, 2 hours 26 minutes before

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Hazardous weather outlook, Jun 15, 11:39 PM MDT, 18 minutes before

Hazardous Weather Outlook
National Weather Service Bismarck ND
1239 AM CDT Mon Jun 16 2025

NDZ004-005-013-025-170545-
Bottineau-Rolette-Pierce-Foster-
1239 AM CDT Mon Jun 16 2025

This Hazardous Weather Outlook is for portions of north central
North Dakota and southeast North Dakota.

.DAY ONE...Tonight

A few strong thunderstorms with gusty winds and small hail are
possible tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

A few strong to severe storms are possible Monday into Monday
evening. Hail to the size of quarters and 60 mph wind gusts will
be the main threats.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed Monday.

NDZ003-011-012-021>023-035>037-047-048-050-051-170545-
Renville-Ward-McHenry-McLean-Sheridan-Wells-Burleigh-Kidder-
Stutsman-Logan-La Moure-McIntosh-Dickey-
1239 AM CDT Mon Jun 16 2025

This Hazardous Weather Outlook is for portions of north central
North Dakota, south central North Dakota, and southeast North
Dakota.

.DAY ONE...Tonight

Thunderstorms are expected tonight. A few storms may become
severe. Hail to the size of quarters and 60 mph wind guts will be
the main threats.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible Monday into Monday evening. A few
storms may become severe. Hail to the size of quarters and 60 mph
wind gusts will be the main threats.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening, and
again on Monday.

NDZ001-002-009-010-017>020-031>034-040>046-170545-
Divide-Burke-Williams-Mountrail-McKenzie-Dunn-Mercer-Oliver-
Golden Valley-Billings-Stark-Morton-Slope-Hettinger-Grant-Bowman-
Adams-Sioux-Emmons-
1239 AM CDT Mon Jun 16 2025 /1139 PM MDT Sun Jun 15 2025/

This Hazardous Weather Outlook is for portions of northwest North
Dakota, south central North Dakota, and southwest North Dakota.

.DAY ONE...Tonight

Thunderstorms are expected tonight. A few storms may become
severe. Hail to the size of ping-pong and 70 mph wind gust will
be the main threats.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible Monday into Monday evening. A few
storms may become severe. Hail to the size of quarters and 60 mph
wind gusts will be the main threats.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening, and
again on Monday.

In the hours before

Special weather statement, Jun 15, 10:29 PM MDT, 1 hour 28 minutes before

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Special weather statement, Jun 15, 11:00 PM MDT, 57 minutes before

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Local storm report, Jun 15, 11:01 PM MDT, 56 minutes before

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Special weather statement, Jun 15, 11:02 PM MDT, 55 minutes before

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Special weather statement, Jun 15, 11:42 PM MDT, 15 minutes before

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Local storm report, Jun 15, 11:43 PM MDT, 14 minutes before

Preliminary Local Storm Report
National Weather Service Bismarck ND
1243 AM CDT Mon Jun 16 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1232 AM     Tstm Wnd Gst     4 W Bowman              46.18N 103.48W
06/16/2025  M57 MPH          Bowman             ND   Mesonet

            4W Bowman NDAWN. 10 meter peak wind gust.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 6:01 PM MDT	Severe Thunderstorm Warning	BIS	Divide	59 min
Jun 15, 6:53 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Divide	67 min
Jun 15, 7:43 PM MDT	Severe Thunderstorm Warning	BIS	Burke	47 min
Jun 15, 10:23 PM MDT	Special Weather Statement	BIS	Williams	37 min
Jun 15, 10:29 PM MDT	Special Weather Statement	BIS	Bowman	31 min
Jun 15, 10:54 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie	66 min
Jun 15, 11:00 PM MDT	Special Weather Statement	BIS	Williams	30 min
Jun 15, 11:02 PM MDT	Special Weather Statement	BIS	Bowman, Slope	28 min
Jun 15, 11:29 PM MDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	61 min
Jun 15, 11:42 PM MDT	Special Weather Statement	BIS	Burke	33 min
Jun 16, 12:14 AM MDT	Special Weather Statement	BIS	Burke, McKenzie, Mountrail	31 min
Jun 16, 12:20 AM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Adams, Hettinger	40 min
Jun 16, 12:28 AM MDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	32 min
Jun 16, 12:47 AM MDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Grant, Hettinger, Sioux	43 min
Jun 16, 12:56 AM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bowman, Slope	49 min
Jun 16, 1:18 AM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Grant, Morton, Sioux	57 min
Jun 16, 1:18 AM MDT	Severe Thunderstorm Warning	BIS	Emmons, McIntosh	57 min
Jun 16, 1:25 AM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Grant, Hettinger	50 min
Jun 16, 1:55 AM MDT	High Wind Warning	BIS	Adams, Bowman, Hettinger, Slope	3 hr
Jun 16, 2:03 AM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Emmons, Logan	42 min
Jun 16, 2:18 AM MDT	Special Weather Statement	BIS	Burleigh, Emmons, Morton	27 min
Jun 16, 2:33 AM MDT	Special Weather Statement	BIS	Logan	27 min
Jun 16, 2:36 AM MDT	Dense Fog Advisory	BIS	Dickey, Foster, LaMoure, Stutsman	2 hr
Jun 16, 2:47 AM MDT	Special Weather Statement	BIS	Kidder, Logan	28 min
Jun 16, 3:23 AM MDT	Special Weather Statement	BIS	LaMoure	22 min
Jun 16, 5:09 PM MDT	Special Weather Statement	BIS	McHenry	36 min
Jun 16, 5:41 PM MDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Pierce, Sheridan	64 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.