Severe Thunderstorm Warning 323, NWS Grand Forks, ND

Issued

Aug 17, 2001, 3:04 PM CDT (20:04 UTC)

Expired

Aug 17, 2001, 3:45 PM CDT

In force

41 min

Issued by

NWS Grand Forks, ND

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Kittson County, MN, Marshall County, MN, Pembina County, ND, Walsh County, ND

The Fargo/Grand Forks radar (KMVX), 109 km from the middle of the area, began a volume at 20:04 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.

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.

095 
WUUS53 KFGF 172005
SVRFAR
MNC069-089-NDC067-099-172045-

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

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  SOUTHEASTERN PEMBINA COUNTY IN NORTHEAST NORTH DAKOTA...
  EASTERN WALSH COUNTY IN NORTHEAST NORTH DAKOTA...  
  WESTERN KITTSON COUNTY IN NORTHWEST MINNESOTA AND   
  WESTERN MARSHALL COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 345 PM CDT.

* AT 258 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTH OF DRAYTON...OR ABOUT 16 MILES
  NORTHEAST OF GRAFTON...MOVEMENT WAS TO THE SOUTH AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  ROBBIN AT 305 PM...
  HERRICK AT 310 PM AND
  BIG WOODS AT 340 PM.

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

LAT...LON 4868 9709 4861 9734 4823 9718 4828 9684


$$

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, 9 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, 2001Severe Thunderstorm Warnings in North Dakota, 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.