Alert archive / North Dakota / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 126, NWS Grand Forks, ND

August 10, 2023Richland County, Sargent County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 10, 2023, 6:33 PM CDT for Richland County, Sargent County, 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
Aug 10, 2023, 6:33 PM CDT (23:33 UTC)
Expired
Aug 10, 2023, 7:30 PM CDT
In force
57 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Richland County, ND, Sargent County, ND

The radar

The Aberdeen radar (KABR), 119 km from the middle of the area, began a volume at 23:36 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.

IssuedProductOfficeLasted
Aug 10, 4:56 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.6 hours before the alert went out and 167 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-pSkew-T log-p diagram, Aberdeen, SD at 12:00Z on 2023-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2023-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 371 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
19 J/kg
Mixed-layer CIN
-310 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
371 m²/s²
0-3 km storm-relative helicity
464 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 Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 10, 3:18 PM CDT, 3 hours 15 minutes earlier.

Area forecast discussion, Aug 10, 3:18 PM CDT, 3 hours 15 minutes before
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Hazardous weather outlook, Aug 10, 8:30 AM CDT, 10 hours 3 minutes before
Hazardous Weather Outlook
National Weather Service Grand Forks ND
830 AM CDT Thu Aug 10 2023

MNZ003-027>032-040-NDZ038-039-049-052-053-111330-
Clay-West Becker-East Becker-Wilkin-West Otter Tail-
East Otter Tail-Wadena-Grant-Barnes-Cass-Ransom-Sargent-Richland-
830 AM CDT Thu Aug 10 2023

This hazardous weather outlook is for portions of eastern North
Dakota and west central Minnesota.

.DAY ONE...Today and Tonight

Isolated to scattered severe thunderstorms are expected across
Southeastern North Dakota and West Central Minnesota along and
South of the I94 Corridor. The main hazards will be ping pong
sized hail, wind gusts up to 75 mph, and tornadoes possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Isolated severe thunderstorms are expected across the Northern Red
River Valley and Northern and West-Central Minnesota . The main
hazards will be quarter sized hail and wind gust up to 60 mph.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required

MNZ001-002-004>009-013>017-022>024-NDZ006>008-014>016-024-026>030-
054-111330-
West Polk-Norman-Kittson-Roseau-Lake Of The Woods-West Marshall-
East Marshall-North Beltrami-Pennington-Red Lake-East Polk-
North Clearwater-South Beltrami-Mahnomen-South Clearwater-Hubbard-
Towner-Cavalier-Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-
Grand Forks-Griggs-Steele-Traill-Western Walsh-
830 AM CDT Thu Aug 10 2023

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

Some thunderstorms may develop in the afternoon. The main threat
will be lightning if storms develop. The probability of severe
and hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Isolated severe thunderstorms are expected across the Northern Red
River Valley and Northern and West-Central Minnesota . The main
hazards will be quarter sized hail and wind gust up to 60 mph.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

In the hours before

Special weather statement, Aug 10, 4:49 PM CDT, 1 hour 44 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
449 PM CDT Thu Aug 10 2023

NDZ049-052-053-102215-
Sargent ND-Ransom ND-Richland ND-
449 PM CDT Thu Aug 10 2023

...Strong thunderstorms will impact portions of southwestern Ransom,
southwestern Richland and Sargent Counties through 515 PM CDT...

At 449 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near La Moure to near Straubville to near
Langford. Movement was east at 60 mph.

HAZARD...Winds in excess of 40 mph and penny 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.

Locations impacted include...
Lisbon, Gwinner, Milnor, Forman, Rutland, Cogswell and Havana.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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.

&&

LAT...LON 4594 9801 4628 9801 4628 9803 4630 9804
      4637 9804 4647 9762 4594 9709
TIME...MOT...LOC 2149Z 248DEG 51KT 4633 9819 4600 9786 4563 9780

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Perroux
Special weather statement, Aug 10, 5:14 PM CDT, 1 hour 19 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
514 PM CDT Thu Aug 10 2023

NDZ049-052-102245-
Sargent ND-Ransom ND-
514 PM CDT Thu Aug 10 2023

...Strong thunderstorms will impact portions of southern Ransom and
Sargent Counties through 545 PM CDT...

At 514 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Stirum to near Rutland to
near Fort Sisseton Station. Movement was east at 50 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Gwinner, Milnor, Forman, Rutland, Cogswell, Havana and De Lamere.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms 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 1100 PM CDT for
southeastern North Dakota.

&&

LAT...LON 4593 9795 4637 9798 4643 9755 4623 9725
      4600 9726 4599 9723 4594 9723
TIME...MOT...LOC 2214Z 286DEG 43KT 4630 9786 4609 9753 4563 9750

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Perroux
Special weather statement, Aug 10, 6:04 PM CDT, 29 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
604 PM CDT Thu Aug 10 2023

MNZ003-029-NDZ039-049-052-053-102345-
Clay MN-Wilkin MN-Sargent ND-Ransom ND-Richland ND-Cass ND-
604 PM CDT Thu Aug 10 2023

...Strong thunderstorms will impact portions of southwestern Clay,
northwestern Wilkin, eastern Ransom, southeastern Cass, Richland and
eastern Sargent Counties through 645 PM CDT...

At 603 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Leonard to near Claire City. Movement was east
at 30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Horace, Hankinson, Kindred, Milnor, Lidgerwood, Wyndmere and
Abercrombie.

This includes Interstate 29 between mile markers 0 and 61.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
west central Minnesota...and southeastern North Dakota.

&&

LAT...LON 4594 9758 4665 9750 4684 9676 4593 9665
TIME...MOT...LOC 2303Z 263DEG 24KT 4663 9726 4588 9715

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Perroux

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 4:49 PM CDTSpecial Weather StatementFGFRansom, Sargent26 min
Aug 10, 5:14 PM CDTSpecial Weather StatementFGFSargent31 min
Aug 10, 5:32 PM CDTSevere Thunderstorm WarningFGFRansom, Richland, Sargent31 min
Aug 10, 6:04 PM CDTSpecial Weather StatementFGFRichland41 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2023Every 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.