Alert archive / North Dakota / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 228, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 25, 2020, 5:15 PM MDT for Grant County, Sioux County, North Dakota. It was in force for 18 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 25, 2020, 5:15 PM MDT (23:15 UTC)
- Expired
- Jul 25, 2020, 5:33 PM MDT
- In force
- 18 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Grant County, ND, Sioux County, ND
The radar
The Bismarck radar (KBIS), 74 km from the middle of the area, began a volume at 23:17 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 25, 4:13 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.3 hours before the alert went out and 77 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1814 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- -69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 25, 4:33 PM MDT, 42 minutes earlier.
Area forecast discussion, Jul 25, 4:33 PM MDT, 42 minutes before
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</html>Hazardous weather outlook, Jul 25, 4:38 PM MDT, 37 minutes before
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Local storm report, Jul 25, 3:11 PM MDT, 2 hours 4 minutes before
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</html>Special weather statement, Jul 25, 4:49 PM MDT, 26 minutes before
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</html>Special weather statement, Jul 25, 5:10 PM MDT, 5 minutes before
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</html>The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 6:01 PM MDT | Special Weather Statement | BIS | Kidder | 29 min |
| Jul 24, 6:18 PM MDT | Special Weather Statement | BIS | Burleigh | 27 min |
| Jul 24, 6:32 PM MDT | Special Weather Statement | BIS | Foster, Kidder | 28 min |
| Jul 24, 6:45 PM MDT | Special Weather Statement | BIS | Burleigh | 30 min |
| Jul 24, 6:57 PM MDT | Special Weather Statement | BIS | Foster | 33 min |
| Jul 24, 7:26 PM MDT | Special Weather Statement | BIS | Stutsman | 49 min |
| Jul 24, 7:53 PM MDT | Special Weather Statement | BIS | Foster | 52 min |
| Jul 24, 8:58 PM MDT | Special Weather Statement | BIS | Dickey | 47 min |
| Jul 24, 9:39 PM MDT | Special Weather Statement | BIS | Dickey | 51 min |
| Jul 24, 10:36 PM MDT | Areal Flood Advisory | BIS | Dickey | 12 hr |
| Jul 24, 11:17 PM MDT | Special Weather Statement | BIS | Dickey | 28 min |
| Jul 25, 3:06 PM MDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 54 min |
| Jul 25, 3:26 PM MDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 64 min |
| Jul 25, 4:21 PM MDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 54 min |
| Jul 25, 4:49 PM MDT | Special Weather Statement | BIS | Morton | 41 min |
| Jul 25, 5:10 PM MDT | Special Weather Statement | BIS | Morton | 35 min |
| Jul 25, 5:30 PM MDT | Special Weather Statement | BIS | Morton | 45 min |
| Jul 25, 5:45 PM MDT | Special Weather Statement | BIS | Morton, Oliver | 30 min |
| Jul 25, 5:59 PM MDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 61 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2020Every severe thunderstorm warning in 2020
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.