Alert archive / North Dakota / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 648
The Storm Prediction Center issued this severe thunderstorm watch at Aug 27, 2002, 4:40 PM CDT for 9 counties in Minnesota; 20 counties in North Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2002, 4:40 PM CDT (21:40 UTC)
- Expired
- Aug 27, 2002, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 29 counties
Beltrami County, MN, Clearwater County, MN, Kittson County, MN, Lake of the Woods County, MN, Marshall County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Benson County, ND, Bottineau County, ND, Cavalier County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, McHenry County, ND, McLean County, ND, Nelson County, ND, Pembina County, ND, Pierce County, ND, Ramsey County, ND, Rolette County, ND, Sheridan County, ND, Steele County, ND, Towner County, ND, Traill County, ND, Walsh County, ND, Wells County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 138 km from the middle of the area, began a volume at 21:39 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
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 5:23 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 37 min |
| Aug 27, 5:42 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 63 min |
| Aug 27, 5:58 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 47 min |
| Aug 27, 6:34 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 56 min |
| Aug 27, 6:48 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 57 min |
| Aug 27, 6:48 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 42 min |
| Aug 27, 6:59 PM CDT | Severe Thunderstorm Warning | BIS | Rolette | 46 min |
| Aug 27, 7:24 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan | 66 min |
| Aug 27, 7:47 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 58 min |
| Aug 27, 7:50 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 55 min |
| Aug 27, 8:43 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 47 min |
| Aug 27, 8:58 PM CDT | Severe Thunderstorm Warning | FGF | Towner | 47 min |
| Aug 27, 9:14 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 46 min |
| Aug 27, 9:35 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 40 min |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.7 hours before the alert went out and 232 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
- 668 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 1358 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
Nearby
Severe Thunderstorm Watches in North Dakota, 2002Severe Thunderstorm Watches in Minnesota, 2002Every severe thunderstorm watch in 2002
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.