Severe Thunderstorm Warning 324, NWS Grand Forks, ND

Issued

Aug 17, 2001, 3:07 PM CDT (20:07 UTC)

Expired

Aug 17, 2001, 3:45 PM CDT

In force

38 min

Issued by

NWS Grand Forks, ND

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Polk County, MN, Red Lake County, MN

The Fargo/Grand Forks radar (KMVX), 70 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.

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.

969 
WUUS53 KFGF 172007
SVRFAR
MNC119-125-172045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
307 PM CDT FRI AUG 17 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  WESTERN POLK COUNTY IN NORTHWEST MINNESOTA AND
  WESTERN RED LAKE COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 345 PM CDT.

* AT 304 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES WEST OF DOROTHY...OR ABOUT 21 MILES
  SOUTHWEST OF THIEF RIVER FALLS...MOVEMENT WAS TO THE SOUTH AT 30
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  HUOT AT 310 PM...
  GENTILLY AT 320 PM...
  CROOKSTON AT 325 PM AND
  HAROLD AT 335 PM.

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

LAT...LON 4794 9642 4798 9667 4755 9662 4757 9629


$$

7

NNNN

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 17, 2:55 PM CDT, 12 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
255 PM CDT FRI AUG 17 2001

DISCUSSION ABREVIATED DUE TO SEVERE WEATHER IN AREA.

FCST CHALLENGE...DURATION OF CONVECTION INTO THIS EVENING IN NW MN.

NEAR TERM/ANALYSIS...SFC CDFRNT EXTENDING FM SFC LOW IN WRN
ONT...VCNTY GFK...INTO NWRN SD....AND DROPPING SWD THROUGH THE FGF
CWFA ATTM. CONVECTION HAS INTENSIFIED ALG AND AHD OF THIS FRONT FM
DVL TO BJI...IN AREA OF MAX INSTABILITY. AREA PROGRESSES SWD THROUGH
THE REMAINDER OF THE AFTERNOON AND EARLY EVENING...SO WILL INCLUDE
MENTION OF EVENING STORMS ALG AND SOUTH OF A VALLEY
CITY...MAYVILLE...TVF AND BDE LINE. AVN AND ETA HAVE SOME INITIAL
DISPARITY THROUGH 00Z BUT LINE UP WELL 12-60HRS. EXPECT CLEARING RRV
AND WEST TNGT WITH SOME RESIDUAL MVFR-VFR CIGS IN NW MN THROUGH THE
OVERNIGHT HOURS. NWLY WINDS ROX-DTL-PKD LIKELY TO GO CALM AT SFC SO
AREAS PATCHY FOG EXPECTED.

SATURDAY...EXPECT LOW CLDS TO BREAK AND SCATTER THROUGH MIDDAY OVR
NW MN...WITH MOSTLY CLEAR SKIES ELSEWHERE. SFC HIGH PRES DOMINATES
SRN MAN INTO ND/MN AREA WITH LIGHT NLY BLAYER FLOW THROUGH DAY ON
SAT. RETURN SLY FLOW DEVELOPS SUNDAY AHD OF APPROACHING SFC TROF.
WILL INCLUDE SUN PM GROUP FOR TSTMS. WILL GO WITH SLIGHTLY WARMER
NGM MOS TEMPS TROUGH PACKAGE.

EXTENDED...MRF...UKMET AND CANADIAN MODELS SIMILAR...WITH ECMWF
QUITE DIFFERENT. UPPER LEVEL W FLOW DOMINATES...WITH STG SHRTWV
ACTIVITY THROUGH EXTENDED PERIOD. EACH DAY HAS TSTM EXPECTATION WITH
SIG MCS AND ADDN HEAVY RAINS SUGGESTED TUES PM INTO WED.

.FGF...NONE.

GUST/NG

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.