Alert archive / North Dakota / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 600
The Storm Prediction Center issued this severe thunderstorm watch at Jul 21, 2001, 12:00 AM CDT for Kittson County, Minnesota; 33 counties in North Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2001, 12:00 AM CDT (05:00 UTC)
- Expired
- Jul 21, 2001, 5:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 34 counties
Kittson County, MN, Barnes County, ND, Benson County, ND, Bottineau County, ND, Burleigh County, ND, Cavalier County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grand Forks County, ND, Grant County, ND, Griggs County, ND, Hettinger County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McHenry County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Nelson County, ND, Oliver County, ND, Pembina County, ND, Pierce County, ND, Ramsey County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Steele County, ND, Stutsman County, ND, Towner County, ND, Walsh County, ND, Ward County, ND, Wells County, ND
The radar
The Bismarck radar (KBIS), 71 km from the middle of the area, began a volume at 05:02 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.
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 12:01 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean | 59 min |
| Jul 21, 12:26 AM CDT | Severe Thunderstorm Warning | BIS | Morton | 64 min |
| Jul 21, 12:28 AM CDT | Severe Thunderstorm Warning | BIS | Pierce, Sheridan | 62 min |
| Jul 21, 12:43 AM CDT | Severe Thunderstorm Warning | FGF | Benson | 47 min |
| Jul 21, 12:49 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 56 min |
| Jul 21, 1:04 AM CDT | Severe Thunderstorm Warning | BIS | Grant | 56 min |
| Jul 21, 1:24 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder | 66 min |
| Jul 21, 1:30 AM CDT | Severe Thunderstorm Warning | FGF | Benson | 30 min |
| Jul 21, 1:40 AM CDT | Severe Thunderstorm Warning | BIS | Wells | 50 min |
| Jul 21, 1:55 AM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman | 50 min |
| Jul 21, 1:57 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 63 min |
| Jul 21, 2:37 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Nelson | 63 min |
| Jul 21, 2:44 AM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman | 31 min |
| Jul 21, 2:52 AM CDT | Flash Flood Warning | FGF | Benson, Eddy, Ramsey | 4 hr |
| Jul 21, 2:56 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 49 min |
| Jul 21, 2:59 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 61 min |
| Jul 21, 3:04 AM CDT | Severe Thunderstorm Warning | FGF | Steele | 56 min |
| Jul 21, 3:14 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 61 min |
| Jul 21, 3:41 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Ransom, Steele | 64 min |
| Jul 21, 3:41 AM CDT | Severe Thunderstorm Warning | FGF | Nelson | 64 min |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 5.0 hours before the alert went out and 69 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
- 2408 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1484 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 10.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 3:45 AM CDT | Severe Thunderstorm Watch | SPC | Becker, Beltrami, Big Stone, Cass, Clay, Clearwater and 17 more | 5 hr |
| Jul 21, 10:30 AM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Cottonwood, Faribault, Freeborn, Jackson, Martin and 4 more | 5 hr |
Nearby
Severe Thunderstorm Watches in North Dakota, 2001Severe Thunderstorm Watches in Minnesota, 2001Every severe thunderstorm watch in 2001
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.