Alert archive / North Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 18, NWS Grand Forks, ND

June 19, 2025Barnes County, Cass County, Ransom County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 19, 2025, 7:30 PM CDT for Barnes County, Cass County, Ransom County, North Dakota. It was in force for 45 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 19, 2025, 7:30 PM CDT (00:30 UTC)
Expired: Jun 19, 2025, 8:15 PM CDT
In force: 45 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Barnes County, ND, Cass County, ND, Ransom County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 87 km from the middle of the area, began a volume at 00:32 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

Aberdeen, SD (KABR), launched 00:00Z, 0.5 hours before the alert went out and 216 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: 667 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 2939 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 Jun 19, 3:10 PM CDT, 4 hours 20 minutes earlier.

Area forecast discussion, Jun 19, 3:10 PM CDT, 4 hours 20 minutes before

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Hazardous weather outlook, Jun 19, 3:15 PM CDT, 4 hours 15 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 8:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Wilkin	65 min
Jun 19, 11:53 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Otter Tail, Wilkin	67 min
Jun 20, 12:43 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Grant, Otter Tail, Wilkin	62 min
Jun 20, 2:51 AM CDT	Heat Advisory	FGF	Becker, Beltrami, Clearwater, Grant, Hubbard, Lake of the Woods and 4 more	64 hr
Jun 19, 8:07 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland	53 min
Jun 19, 8:36 PM CDT	Severe Thunderstorm Warning	FGF	Richland	24 min
Jun 19, 9:10 PM CDT	Severe Thunderstorm Warning	FGF	Benson	50 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.