Alert archive / North Dakota / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 121, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jun 21, 2010, 11:50 PM MDT for 5 counties in North Dakota. It was in force for 55 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 21, 2010, 11:50 PM MDT (05:50 UTC)
- Expired
- Jun 22, 2010, 12:45 AM MDT
- In force
- 55 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 80.0 mph
Counties Adams County, ND, Grant County, ND, Hettinger County, ND, Morton County, ND, Sioux County, ND
The radar
The Bismarck radar (KBIS), 92 km from the middle of the area, began a volume at 05:50 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 8:54 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 5.8 hours before the alert went out and 96 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
- 279 J/kg
- Mixed-layer CIN
- -250 J/kg
- Mixed-layer LCL
- 1509 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 34 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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 1:17 PM MDT, 10 hours 33 minutes earlier.
Area forecast discussion, Jun 21, 1:17 PM MDT, 10 hours 33 minutes before
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</html>Hazardous weather outlook, Jun 21, 11:48 AM MDT, 12 hours 2 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 |
|---|---|---|---|---|
| Jun 21, 8:38 PM MDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 67 min |
| Jun 21, 9:19 PM MDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 56 min |
| Jun 21, 9:27 PM MDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 63 min |
| Jun 21, 10:07 PM MDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Golden Valley, McKenzie | 53 min |
| Jun 21, 10:09 PM MDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 66 min |
| Jun 21, 10:13 PM MDT | Areal Flood Advisory | BIS | Billings, Dunn, Golden Valley, McKenzie | 3 hr |
| Jun 21, 10:26 PM MDT | Areal Flood Advisory | BIS | Adams, Bowman, Grant, Hettinger, Sioux, Slope | 3 hr |
| Jun 21, 11:05 PM MDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Grant, Hettinger, Sioux, Slope | 55 min |
| Jun 21, 11:09 PM MDT | Areal Flood Advisory | BIS | Dunn, Mountrail, Stark | 3 hr |
| Jun 21, 11:12 PM MDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mercer, Mountrail | 63 min |
| Jun 21, 11:59 PM MDT | Areal Flood Advisory | BIS | McLean, Ward | 6 hr |
| Jun 22, 12:44 AM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Grant, Morton, Sioux | 61 min |
| Jun 22, 12:54 AM MDT | Areal Flood Advisory | BIS | Burleigh, Morton | 3 hr |
| Jun 22, 1:38 AM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Kidder, Morton, Oliver | 67 min |
| Jun 22, 2:08 AM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Foster, Kidder, Logan, Sheridan, Stutsman and 1 more | 52 min |
| Jun 22, 2:59 AM MDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Stutsman, Wells | 61 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2010Every severe thunderstorm warning in 2010
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.