Severe Thunderstorm Warning 98, NWS Grand Forks, ND

Issued

Jul 16, 2001, 9:45 PM CDT (02:45 UTC)

Expired

Jul 16, 2001, 10:30 PM CDT

In force

45 min

Issued by

NWS Grand Forks, ND

Area

Whole counties

County Kittson County, MN

The Fargo/Grand Forks radar (KMVX), 145 km from the middle of the area, began a volume at 02:48 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.

776 
WUUS53 KFGF 170245
SVRFAR
MNC069-170330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
945 PM CDT MON JUL 16 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  SOUTHEASTERN KITTSON COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 1030 PM CDT.

* AT 943 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES EAST OF DONALDSON...OR ABOUT 31 MILES
  EAST OF GRAFTON...MOVEMENT WAS TO THE EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  HALMA AT 1010 PM CDT AND
  KARLSTAD AT 1025 PM CDT.

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


$$

14

NNNN

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 16, 8:20 PM CDT, 1 hour 25 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
820 PM CDT MON JUL 16 2001

WEAK SFC LOW JUST WEST OF BIS AT 00Z...WITH QUASISTATIONARY WARM
FRONT EXTENDING NORTHEAST TO AROUND FGN. DEWPOINTS AROUND 70F ACROSS
ENTIRE FA...WITH BEST SFC MOISTURE FLUX CONVERGENCE ALONG FRONT.
CAPES RUNNING FROM 1500-2500 ACROSS FA AS WELL. ELEVATED CONVECTION
ON NOSE OF 30KT JET CONTINUES TO RIDE INTO NORTHEAST FA. AREA OF
CONCERN WILL BE EXTREME NORTHEAST ND INTO NORTHERN MN OVERNIGHT FOR
FLASH FLOODING CONCERNS. EVEN WITH FFG GUIDANCE OF 1.5-2.5 INCHES
PER HOUR NEEDED FOR FLASH FLOODING...THREE HOUR VALUES AROUND 3
INCHES MAY BE REACHABLE. FEEL BEST CHANCE WILL BE ALONG
QUASISTATIONARY WARMFRONT...WHERE PRECIPITABLE WATERS AROUND 1.70
INCHES. CONVECTION SHOULD DIE DOWN SHORTLY AFTER 06Z FROM VALLEY
EAST AS LARGE SCALE SUBSIDENCE MOVES IN...AND 850MB FLOW TURNS
WESTERLY ALLOWING UNIDIRECTIONAL FLOW. FEEL AREAL THREAT IS TOO
SMALL FOR A FFA THOUGH...SO WILL NOT ISSUE ONE FOR NOW BUT MONITOR
CLOSELY. A FEW SEVERE STORMS POSSIBLE AS WELL UNTIL 03Z...WITH BIGGEST
THREAT FROM BRIEF GUSTY WINDS/LARGE HAIL. FURTHER SOUTH...EXTREMELY
UNSTABLE ENVIRONMENT WITH CAPES TO 3500 ARE PRESENT...BUT SFC
CONVERGENCE IS LIMITED. WILL LEAVE IN A LOW EVENING POP THREAT
HERE...WITH SWOMCD OUT FOR SE ND STATING ANY STORMS WHICH DO DEVELOP
WOULD BECOME RAPIDLY SEVERE.

.FGF...NONE.

KELLENBENZ

In the hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
629 PM CDT MON JUL 16 2001

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0525 PM    GRAND FORKS AFB           ND   .75 INCH HAIL
07/16/01   GRAND FORKS

0525 PM    GRAND FORKS AFB           ND   68 MPH TSTM GUST
07/16/01   GRAND FORKS

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.