Alert archive / North Dakota / Severe Thunderstorm Watches in 1997
Severe Thunderstorm Watch 653
The Storm Prediction Center issued this severe thunderstorm watch at Jul 25, 1997, 4:45 PM CDT for 13 counties in Minnesota; 15 counties in North Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 25, 1997, 4:45 PM CDT (21:45 UTC)
- Expired
- Jul 25, 1997, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Becker County, MN, Clay County, MN, Clearwater County, MN, Kittson County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, Grand Forks County, ND, Griggs County, ND, LaMoure County, ND, McIntosh 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), 44 km from the middle of the area, began a volume at 21:47 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:27 PM CDT | Tornado Warning | FGF | Walsh | 33 min |
| Jul 25, 5:53 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 52 min |
| Jul 25, 6:00 PM CDT | Tornado Warning | FGF | Walsh | 30 min |
| Jul 25, 6:26 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 34 min |
| Jul 25, 6:35 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 25 min |
| Jul 25, 6:45 PM CDT | Flash Flood Warning | FGF | Walsh | 2 hr |
| Jul 25, 7:02 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 28 min |
| Jul 25, 7:17 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall | 28 min |
| Jul 25, 7:30 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 15 min |
| Jul 25, 7:34 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 26 min |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.8 hours before the alert went out and 248 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
- 655 J/kg
- Mixed-layer CIN
- -252 J/kg
- Mixed-layer LCL
- 1262 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 42 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 |
|---|---|---|---|---|
| Jul 24, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Brown, Chippewa, Cottonwood, Faribault, Jackson and 19 more | 6 hr |
| Jul 25, 3:30 AM CDT | Severe Thunderstorm Watch | SPC | Anoka, Blue Earth, Carver, Dakota, Dodge, Faribault and 17 more | 6 hr |
| Jul 25, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Benson, Bottineau, Burleigh, Cavalier, Eddy, Emmons and 19 more | 6 hr |
Nearby
Severe Thunderstorm Watches in North Dakota, 1997Severe Thunderstorm Watches in Minnesota, 1997Every severe thunderstorm watch in 1997
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.