Severe Thunderstorm Warning 261, NWS Grand Forks, ND

Issued

Aug 8, 2001, 1:16 AM CDT (06:16 UTC)

Expired

Aug 8, 2001, 2:00 AM CDT

In force

44 min

Issued by

NWS Grand Forks, ND

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Norman County, MN, Polk County, MN

The Fargo/Grand Forks radar (KMVX), 59 km from the middle of the area, began a volume at 06:18 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.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

832 
WUUS53 KFGF 080618
SVRFAR
MNC107-119-080700-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
116 AM CDT WED AUG 8 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  NORMAN COUNTY IN NORTHWEST MINNESOTA AND
  SOUTHWEST POLK COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 200 AM CDT.

* AT 113 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 15 MILES WEST OF SHELLY...OR ABOUT 32 MILES
  SOUTH OF GRAND FORKS...MOVEMENT WAS TO THE EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  SHELLY AT 135 AM...
  ADA AT 135 AM CDT...
  LOCKHART AT 150 AM AND
  BELTRAMI AT 155 AM.
  
* WINDS TO 70 MPH WAS REPORTED IN MAYVILLE AT 115 AM CDT.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 AM WEDNESDAY
MORNING FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH DAKOTA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 400 AM
WEDNESDAY MORNING FOR EASTERN NORTH DAKOTA.

LAT...LON 4759 9685 4719 9681 4721 9611 4757 9613


$$
DTR/06

NNNN

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 7, 8:25 PM CDT, 4 hours 51 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
825 PM CDT TUE AUG 7 2001

FCST CHALLENGE OVERNIGHT...COVERAGE/INTENSITY AND LOCATION OF CONVECTION.

EARLY EVE SFC MAP SHOWS LOW IN SE SASK WITH WARM FRONT INTO FAR SRN
MB AND TROUGH THROUGH FAR ERN MT.  ACTUAL COLD FRONT FARTHER WEST
DROPPING SOUTH THROUGH SRN ALBERTA.  SATELLITE ALONG WITH 70H TEMPS
WOULD INDICATE NRN EDGE OF CAP EXTENDS JUST NORTH OF A BIS-FAR-BJI
LINE.  SFC MAP ALSO SHOWS WK TROUGH ALONG THIS AXIS AS WELL.

FIRST BATCH OF ELEVATED WEAK CONVECTION THAT WAS NR MINOT LATE
THIS AFTN HAS MOVED EAST AND FALLEN APART AS IT APPROACHED WRN
CWFA.  STRONGER TSRA THAT GOT GOING IN ERN MT NOW MOVING EAST AND
LOCATED BTWN MOT/BIS.  NO SVR YET.  18Z MESO ETA INDICATES 35-40KT
LOW LEVEL JET WILL GET GOING BY 06Z WITH NOSE IN NCNTRL ND AND THEN
IT MOVES OVR THE NE ND/NW MN AND SRN IN THE 09-12Z TIME FRAME.  THUS
EXPECT SOME EVOLUTION OF TSRA IN WRN ND/ERN MT INTO A LARGER COMPLEX
AS THE NIGHT PROGRESSES.

GOING FCST AND BREAKUP LOOK GOOD WITH HIGHEST POPS NRN ZONES (NORTH
OF TROUGH) AND NO POPS IN THE FAR SOUTH WHERE CAP WILL REMAIN.

AS FOR THE HEAT ADVISORY...MUCH OF ERN ND AND A FEW PLACES IN NW MN
REACHED 105F LATE THIS AFTN...AND WITH DEW PTS CLIMBING INTO THE
UPPER 70S OVERNIGHT EXPECT HEAT INDICES TO REMAIN ABV 80F TONIGHT.
THUS WILL MAINTAIN CURRENT HEAT ADVISORY LOCATION FOR TONIGHT.

WILL RE-ISSUE NEW NPWFAR AND ZONES SHORTLY AFTER 9 PM.

.FGF...HEAT ADVISORY ALL CWFA EXCEPT WC MN TONIGHT.

RIDDLE

Severe Thunderstorm Warnings in Minnesota, 2001Every severe thunderstorm warning in 2001

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.