Alert archive / North Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 101, NWS Grand Forks, ND

July 9, 2025Benson County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 9, 2025, 9:26 PM CDT for Benson 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
Jul 9, 2025, 9:26 PM CDT (02:26 UTC)
Expired
Jul 9, 2025, 10:15 PM CDT
In force
49 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Benson County, ND

The radar

The Minot AFB radar (KMBX), 117 km from the middle of the area, began a volume at 02:27 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
Jul 9, 7:36 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.4 hours before the alert went out and 176 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, Bismarck Municip, ND at 00:00Z on 2025-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4873 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, Bismarck Municip, ND at 00:00Z on 2025-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
4873 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1777 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 10:15 PM CDTSevere Thunderstorm WarningFGFKittson30 min
Jul 9, 11:00 PM CDTSpecial Weather StatementFGFKittson, Marshall30 min
Jul 10, 12:15 AM CDTSpecial Weather StatementFGFMarshall, Pennington, Polk30 min
Jul 10, 12:49 AM CDTSpecial Weather StatementFGFMarshall, Pennington, Polk, Red Lake, Roseau56 min
Jul 9, 8:32 PM CDTSpecial Weather StatementFGFBenson28 min
Jul 9, 9:10 PM CDTSpecial Weather StatementFGFEddy35 min
Jul 9, 9:29 PM CDTSevere Thunderstorm WarningFGFBenson, Eddy, Ramsey46 min
Jul 9, 9:49 PM CDTSevere Thunderstorm WarningFGFBarnes56 min
Jul 9, 10:03 PM CDTSevere Thunderstorm WarningFGFBenson, Eddy57 min
Jul 9, 10:33 PM CDTSevere Thunderstorm WarningFGFEddy, Griggs, Nelson57 min
Jul 9, 10:38 PM CDTSpecial Weather StatementFGFBarnes, Ransom, Sargent67 min
Jul 9, 10:53 PM CDTSevere Thunderstorm Warning Considerable damage threatFGFGriggs, Steele37 min
Jul 9, 11:49 PM CDTSpecial Weather StatementFGFRansom26 min
Jul 10, 12:02 AM CDTSpecial Weather StatementFGFTraill28 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2025Every 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.