Alert archive / Minnesota / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 121, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 31, 2024, 5:03 PM CDT for Grant County, Otter Tail County, Minnesota. It was in force for 42 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 31, 2024, 5:03 PM CDT (22:03 UTC)
- Expired
- Jul 31, 2024, 5:45 PM CDT
- In force
- 42 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Grant County, MN, Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 188 km from the middle of the area, began a volume at 22:06 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 31, 12:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.1 hours before the alert went out and 229 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.
- Mixed-layer CAPE
- 1405 J/kg
- Mixed-layer CIN
- -166 J/kg
- Mixed-layer LCL
- 1223 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Jul 31, 3:21 PM CDT, 1 hour 42 minutes earlier.
Area forecast discussion, Jul 31, 3:21 PM CDT, 1 hour 42 minutes before
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</html>Hazardous weather outlook, Jul 31, 5:57 AM CDT, 11 hours 6 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 557 AM CDT Wed Jul 31 2024 MNZ029>032-040-NDZ049-052-053-011100- Wilkin-West Otter Tail-East Otter Tail-Wadena-Grant-Ransom- Sargent-Richland- 557 AM CDT Wed Jul 31 2024 This hazardous weather outlook is for portions of eastern North Dakota and west central Minnesota. .DAY ONE...Today and Tonight There is a level 2 out of 5 risk for severe thunderstorms. This is for midday today through early evening. The main hazards will be hail to golf ball size and wind gusts to 70 mph. An isolated tornado is possible. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today. MNZ001>009-013>017-022>024-027-028-NDZ006>008-014>016-024-026>030- 038-039-054-011100- West Polk-Norman-Clay-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-West Becker-East Becker-Towner-Cavalier- Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks- Griggs-Steele-Traill-Barnes-Cass-Western Walsh- 557 AM CDT Wed Jul 31 2024 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight There is a level 1 out of 5 risk for severe thunderstorms. This is for today through early evening. The main hazards will be hail to 1 inch and wind gusts to 60 mph. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today.
In the hours before
Special weather statement, Jul 31, 3:24 PM CDT, 1 hour 39 minutes before
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</html>Local storm report, Jul 31, 3:57 PM CDT, 1 hour 6 minutes before
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</html>Local storm report, Jul 31, 4:09 PM CDT, 54 minutes before
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</html>Local storm report, Jul 31, 4:15 PM CDT, 48 minutes before
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</html>Local storm report, Jul 31, 4:37 PM CDT, 26 minutes before
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</html>The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 9:21 PM CDT | Special Weather Statement | FGF | Towner | 24 min |
| Jul 30, 9:45 PM CDT | Special Weather Statement | FGF | Towner | 45 min |
| Jul 31, 6:03 AM CDT | Special Weather Statement | FGF | Ramsey | 42 min |
| Jul 31, 6:11 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 34 min |
| Jul 31, 6:45 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 45 min |
| Jul 31, 10:35 AM CDT | Special Weather Statement | FGF | Eddy | 40 min |
| Jul 31, 11:07 AM CDT | Special Weather Statement | FGF | Barnes | 38 min |
| Jul 31, 11:31 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom | 44 min |
| Jul 31, 12:11 PM CDT | Special Weather Statement | FGF | Barnes, Ransom | 49 min |
| Jul 31, 12:16 PM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 44 min |
| Jul 31, 12:45 PM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 45 min |
| Jul 31, 12:54 PM CDT | Special Weather Statement | FGF | Cass, Traill | 51 min |
| Jul 31, 1:19 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 56 min |
| Jul 31, 1:42 PM CDT | Special Weather Statement | FGF | Clay, Norman, Polk, Red Lake | 48 min |
| Jul 31, 1:58 PM CDT | Severe Thunderstorm Warning | FGF | Marshall, Pennington | 47 min |
| Jul 31, 2:09 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Clearwater, Hubbard, Mahnomen, Otter Tail and 2 more | 51 min |
| Jul 31, 2:54 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Otter Tail and 1 more | 66 min |
| Jul 31, 3:24 PM CDT | Special Weather Statement | FGF | Roseau | 36 min |
| Jul 31, 3:59 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 31 min |
| Jul 31, 5:28 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 47 min |
| Jul 31, 5:50 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 40 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2024Every severe thunderstorm warning in 2024
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.