Alert archive / North Dakota / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 38, NWS Bismarck, ND

June 21, 2023Dunn County, Stark County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 21, 2023, 11:32 PM MDT for Dunn County, Stark County, North Dakota. It was in force for 58 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 21, 2023, 11:32 PM MDT (05:32 UTC)
Expired: Jun 22, 2023, 12:30 AM MDT
In force: 58 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Dunn County, ND, Stark County, ND

The radar

The Bismarck radar (KBIS), 147 km from the middle of the area, began a volume at 05:33 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 00:00Z, 5.5 hours before the alert went out and 151 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1543 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 21, 8:37 PM MDT, 2 hours 55 minutes earlier.

Area forecast discussion, Jun 21, 8:37 PM MDT, 2 hours 55 minutes before

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Hazardous weather outlook, Jun 21, 8:41 PM MDT, 2 hours 51 minutes before

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In the hours before

Special weather statement, Jun 21, 7:18 PM MDT, 4 hours 14 minutes before

Special Weather Statement
National Weather Service Bismarck ND
718 PM MDT Wed Jun 21 2023

NDZ042-044-045-220145-
Grant ND-Sioux ND-Adams ND-
718 PM MDT Wed Jun 21 2023

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN SIOUX,
SOUTHWESTERN GRANT AND SOUTHEASTERN ADAMS COUNTIES THROUGH 745 PM
MDT...

At 718 PM MDT, a strong thunderstorm was located near Thunder Hawk,
or 5 miles east of Lemmon, moving northeast at 40 mph.

HAZARD...Wind gusts to 50 mph and nickel size hail.

SOURCE...Radar indicated.

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

This storm will remain over mainly rural areas of southwestern Sioux,
southwestern Grant and southeastern Adams Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4594 10217 4599 10221 4627 10182 4594 10149
TIME...MOT...LOC 0118Z 240DEG 36KT 4595 10206

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

HAMILTON

Local storm report, Jun 21, 8:26 PM MDT, 3 hours 6 minutes before

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Local storm report, Jun 21, 8:48 PM MDT, 2 hours 44 minutes before

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Local storm report, Jun 21, 10:16 PM MDT, 1 hour 16 minutes before

Preliminary Local Storm Report
National Weather Service Bismarck ND
1116 PM CDT Wed Jun 21 2023

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

0858 PM     Hail             12 NNW Dunseith         48.96N 100.21W
06/20/2023  E1.75 inch       Bottineau          ND   Public

            Delayed report, relayed via social media and
            estimated time based on Radar.

&&

Special weather statement, Jun 21, 11:04 PM MDT, 28 minutes before

Special Weather Statement
National Weather Service Bismarck ND
1104 PM MDT Wed Jun 21 2023

NDZ018-033-220545-
Stark ND-Dunn ND-
1104 PM MDT Wed Jun 21 2023

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTH CENTRAL DUNN
AND NORTHWESTERN STARK COUNTIES THROUGH 1145 PM MDT...

At 1104 PM MDT, a strong thunderstorm was located 6 miles southwest
of South Heart, or 15 miles west of Dickinson, moving northeast at 35
mph.

HAZARD...Wind gusts to 55 mph and nickel size hail.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  South Heart around 1115 PM MDT.
  Dickinson around 1130 PM MDT.

Other locations impacted by this storm include New Hradec and
Dickinson Regional Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4705 10287 4697 10267 4681 10257 4669 10313
      4685 10324
TIME...MOT...LOC 0504Z 245DEG 32KT 4681 10308

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

HAMILTON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 7:18 PM MDT	Special Weather Statement	BIS	Grant	27 min
Jun 21, 7:34 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	56 min
Jun 21, 8:24 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Sioux	66 min
Jun 21, 9:17 PM MDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	31 min
Jun 21, 11:04 PM MDT	Special Weather Statement	BIS	Stark	41 min
Jun 22, 12:26 AM MDT	Special Weather Statement	BIS	Mercer	49 min
Jun 22, 1:02 AM MDT	Special Weather Statement	BIS	Hettinger	28 min
Jun 22, 2:12 AM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Morton	33 min
Jun 22, 2:35 AM MDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, Morton, Oliver	35 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2023 Every severe thunderstorm warning in 2023

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.