Alert archive / North Dakota / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 584
The Storm Prediction Center issued this severe thunderstorm watch at Aug 8, 2002, 3:10 PM CDT for 13 counties in Minnesota; 15 counties in North Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2002, 3:10 PM CDT (20:10 UTC)
- Expired
- Aug 8, 2002, 9:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Becker County, MN, Clay County, MN, Clearwater County, MN, Kittson County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Cavalier County, ND, Dickey County, ND, Grand Forks County, ND, Griggs County, ND, LaMoure County, ND, Nelson County, ND, Pembina County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Traill County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 25 km from the middle of the area, began a volume at 20:09 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
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 3:36 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 39 min |
| Aug 8, 3:56 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 49 min |
| Aug 8, 4:09 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 51 min |
| Aug 8, 4:37 PM CDT | Tornado Warning | FGF | Grand Forks | 38 min |
| Aug 8, 4:44 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 46 min |
| Aug 8, 5:00 PM CDT | Severe Thunderstorm Warning | FGF | Steele, Traill | 45 min |
| Aug 8, 5:25 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 65 min |
| Aug 8, 5:46 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 44 min |
| Aug 8, 6:24 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 51 min |
| Aug 8, 6:44 PM CDT | Flash Flood Warning | FGF | Traill | 6 hr |
| Aug 8, 7:19 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 41 min |
| Aug 8, 7:23 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 37 min |
| Aug 8, 7:30 PM CDT | Tornado Warning | FGF | Traill | 45 min |
| Aug 8, 7:31 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 44 min |
| Aug 8, 8:12 PM CDT | Tornado Warning | FGF | Polk | 48 min |
| Aug 8, 8:37 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 38 min |
| Aug 8, 8:56 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 49 min |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 8.2 hours before the alert went out and 254 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
- 274 J/kg
- Mixed-layer CIN
- -305 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 6:55 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Burleigh, Dunn, Emmons, Foster, Grant and 13 more | 5 hr |
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.