Severe Thunderstorm Warning 191, NWS Grand Forks, ND

Issued

Jul 20, 1998, 4:14 PM CDT (21:14 UTC)

Expired

Jul 20, 1998, 4:45 PM CDT

In force

31 min

Issued by

NWS Grand Forks, ND

Area

Whole counties

County Becker County, MN

The Fargo/Grand Forks radar (KMVX), 141 km from the middle of the area, began a volume at 21:14 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.

526 
WUUS1 KFAR 202113 RRA
SVRFAR
MNC005-202145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
414 PM CDT MON JUL 20 1998

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BECKER COUNTY IN NORTHWESTERN MINNESOTA

* UNTIL 445 PM CDT

* AT 410 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM ALONG THE MAHNOMEN/BECKER COUNTY LINES NEAR
  OGEMA OR 25 MILES NORTH OF DETROIT LAKES. MOVEMENT WAS SOUTHEAST AT
  20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WHITE EARTH AT 420 PM CDT
  STRAWBERRY LAKE AT 430 PM CDT

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCED WARNING.
EWENS

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 20, 3:00 PM CDT, 1 hour 14 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
300 PM CDT MON JUL 20 1998

FIRST PERIOD DISCUSSION...ADAP SHOWING GOOD MSTR FLUX CONVERENGCE
FM TVF TO SARGENT CNTY ND. LIS WERE ALSO QUITE LOW AND THE
CAP WAS WEAKEST IN THE SAME AREA. UPR LVL JET MOVG ALNG THE
INTERNATIONAL BDR WITH STRMS LIKELY TO FIRE IN RFQ AS WARM MOIST
AIR GETS LIFTED UNDER JET INDUCED SUBSIDENCE. STRMS FIRING UP ARND
TVF. STLT SHOWING A LINE OF ENHANCED CU FM TVF TO DICKEY CNTY ND.
WATER VAPOR LOOP ALSO HAS HIR MID LVL MSTR MOVG IN. SHOULD SEE STRMS
DEVELOP ALONG MOIST/DRY INTERFACE AND ALONG SFC FNT. WNDS HAVE
BECM NW W SFC CU LINE ON STLT. XPC STRMS TO DEVELOP ALNG FNTL BNDRY
AND ESPECIALLY WHERE FNTL BNDRY WOULD INTERSECT MOIST/DRY INTERFACE.
CLRG SHOULD FOLLOW STRMS ACTIVITY TNGT XCP ALNG INTERNATIONAL BDR
WHERE MORE CLDS ARE XPCD. AS FAR AS TEMPS MOS SEEMS A LITTLE WARM
WITH DWPNTS IN THE UPR 40S IN WRN ND HOWEVER UPR 50S DWPNTS
WERE IN SRN MAN. TEMPS SHOUD BE WARMER ALNG THE NRN BDR WITH
HIR DWPNTS AND CLDS BY MORN...COOLER IN THE S. THINK LOWS WL BE
IN THE MID 50S IN FAR, FFM, DTL, PKD...AND UPR 50S GFK, FSE,
BJI, DVL...ARND 60 IN HCO, ROX, BDE.

HOPPES

Severe Thunderstorm Warnings in Minnesota, 1998Every severe thunderstorm warning in 1998

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.