Alert archive / Minnesota / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 26, NWS Grand Forks, ND

May 30, 20234 counties in Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 30, 2023, 6:47 PM CDT for 4 counties in Minnesota. It was in force for 43 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: May 30, 2023, 6:47 PM CDT (23:47 UTC)
Expired: May 30, 2023, 7:30 PM CDT
In force: 43 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Becker County, MN, Clearwater County, MN, Hubbard County, MN, Mahnomen County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 145 km from the middle of the area, began a volume at 23:50 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

International Fa, MN (KINL), launched 12:00Z, 11.8 hours before the alert went out and 218 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: 1401 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 10 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 Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at May 30, 6:35 PM CDT, 12 minutes earlier.

Area forecast discussion, May 30, 6:35 PM CDT, 12 minutes before

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Hazardous weather outlook, May 30, 4:02 PM CDT, 2 hours 45 minutes before

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In the hours before

Local storm report, May 30, 5:38 PM CDT, 1 hour 9 minutes before

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Special weather statement, May 30, 5:39 PM CDT, 1 hour 8 minutes before

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Local storm report, May 30, 5:42 PM CDT, 1 hour 5 minutes before

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Local storm report, May 30, 6:03 PM CDT, 44 minutes before

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Special weather statement, May 30, 6:04 PM CDT, 43 minutes before

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Local storm report, May 30, 6:27 PM CDT, 20 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
May 30, 3:07 PM CDT	Special Weather Statement	FGF	Norman	23 min
May 30, 3:17 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	43 min
May 30, 3:34 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman	41 min
May 30, 3:55 PM CDT	Severe Thunderstorm Warning	FGF	Mahnomen, Norman, Polk	50 min
May 30, 4:12 PM CDT	Special Weather Statement	FGF	Grant	48 min
May 30, 4:21 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	25 min
May 30, 4:23 PM CDT	Severe Thunderstorm Warning	FGF	Grant	32 min
May 30, 4:25 PM CDT	Special Weather Statement	FGF	Norman	35 min
May 30, 4:37 PM CDT	Severe Thunderstorm Warning	FGF	Clearwater, Mahnomen, Polk	38 min
May 30, 4:40 PM CDT	Special Weather Statement	FGF	Red Lake	35 min
May 30, 4:48 PM CDT	Special Weather Statement	FGF	Beltrami	27 min
May 30, 4:50 PM CDT	Special Weather Statement	FGF	Otter Tail	40 min
May 30, 5:09 PM CDT	Severe Thunderstorm Warning	FGF	Clearwater	51 min
May 30, 5:15 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	45 min
May 30, 5:23 PM CDT	Special Weather Statement	FGF	Mahnomen	37 min
May 30, 5:29 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Mahnomen	46 min
May 30, 5:39 PM CDT	Special Weather Statement	FGF	Mahnomen	36 min
May 30, 5:45 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Hubbard, Otter Tail, Wadena	20 min
May 30, 5:47 PM CDT	Severe Thunderstorm Warning	FGF	Clearwater, Mahnomen	43 min
May 30, 5:56 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater	49 min
May 30, 6:04 PM CDT	Special Weather Statement	FGF	Lake of the Woods	41 min
May 30, 6:20 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Hubbard	40 min
May 30, 6:36 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods, Roseau	39 min
May 30, 6:43 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Hubbard	47 min
May 29, 7:00 PM CDT	Special Weather Statement	FGF	Benson	30 min
May 29, 9:01 PM CDT	Special Weather Statement	FGF	Cass	29 min
May 29, 10:13 PM CDT	Special Weather Statement	FGF	Richland	32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.