Severe Thunderstorm Warning 325, NWS Grand Forks, ND

Issued

Aug 31, 2002, 10:02 PM CDT (03:02 UTC)

Expired

Aug 31, 2002, 10:45 PM CDT

In force

43 min

Issued by

NWS Grand Forks, ND

Area

Counties, with a storm outline in the text

County Cavalier County, ND

The Fargo/Grand Forks radar (KMVX), 164 km from the middle of the area, began a volume at 03:04 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

580 
WUUS53 KFGF 010302
SVRFAR
NDC019-010345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1002 PM CDT SAT AUG 31 2002

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  NORTHERN CAVALIER COUNTY IN NORTHEAST NORTH DAKOTA.

* UNTIL 1045 PM CDT.

* AT 959 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER VANG...OR ABOUT 16 MILES NORTHEAST OF
  LANGDON...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN IN RURAL AREAS OF

  NORTHEASTERN CAVALIER COUNTY.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT SUNDAY
MORNING FOR NORTHWEST MINNESOTA AND NORTHEAST NORTH DAKOTA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 400 AM SUNDAY MORNING
FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL MIDNIGHT SUNDAY
MORNING FOR NORTHEAST NORTH DAKOTA.

LAT...LON 4891 9829 4879 9810 4879 9801 4910 9805


04

NNNN

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 31, 8:45 PM CDT, 1 hour 17 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
845 PM CDT SAT AUG 31 2002

SEVERE THUNDERSTORMS ARE CONFINED SO FAR TO EXTREME NORTHERN RED
RIVER VALLEY BUT TRAINING THUNDERSTORMS ARE APPROACHING ON SEVERAL
FRONTS AT WEST/SOUTHWEST SIDE OF CWA. BELIEVE THE AVN WAS MOST
CORRECT IN PLACEMENT OF HEAVIEST RAIN TONIGHT BUT FLOOD WATCH IN
EFFECT THROUGHOUT REGION IS STILL VALID WITH SATURATED SOILS IN
ABUNDANCE. WILL LEAVE ZONES BASICALLY ALONE BUT WILL ADD EMPHASIS
ON FLOOD POTENTIAL AS NONE WAS INCLUDED EARLIER.

.FGF...FLASH FLOOD WATCH ENTIRE CWA TONIGHT.
       SEVERE THUNDERSTORM WATCH TIL MIDNIGHT NORTH HALF EXCEPT LAKE
       OF THE WOODS AND BELTRAMI COUNTIES.
GV

Severe Thunderstorm Warnings in North Dakota, 2002Every severe thunderstorm warning in 2002

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.