Alert archive / Minnesota / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 660
The Storm Prediction Center issued this severe thunderstorm watch at Aug 8, 2001, 1:00 AM CDT for 13 counties in Minnesota; Richland County, Traill County, North Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2001, 1:00 AM CDT (06:00 UTC)
- Expired
- Aug 8, 2001, 6:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Becker County, MN, Cass County, MN, Clay County, MN, Crow Wing County, MN, Hubbard County, MN, Mahnomen County, MN, Mille Lacs County, MN, Morrison County, MN, Norman County, MN, Otter Tail County, MN, Todd County, MN, Wadena County, MN, Wilkin County, MN, Richland County, ND, Traill County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 135 km from the middle of the area, began a volume at 06:03 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
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 1:16 AM CDT | Severe Thunderstorm Warning | FGF | Norman, Polk | 44 min |
| Aug 8, 1:39 AM CDT | Severe Thunderstorm Warning | FGF | Clay | 21 min |
| Aug 8, 1:53 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Mahnomen, Norman, Polk | 67 min |
| Aug 8, 2:28 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Beltrami, Clearwater, Hubbard | 62 min |
| Aug 8, 3:22 AM CDT | Severe Thunderstorm Warning | DLH | Cass, Itasca | 53 min |
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 6.0 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
- 1009 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 1873 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Aug 8, 4:30 AM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Carlton, Lake, Saint Louis | 6 hr |
| Aug 8, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Carlton, Cass, Crow Wing, Kanabec, Pine | 6 hr |
| Aug 8, 6:00 PM CDT | Tornado Watch | SPC | Becker, Clay, Kittson, Mahnomen, Marshall, Norman and 4 more | 5 hr |
| Aug 7, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Benson, Bottineau, Burke, Cavalier, Dunn, Eddy and 20 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Minnesota, 2001Severe Thunderstorm Watches in North Dakota, 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.