Severe Thunderstorm Warning 121, NWS Grand Forks, ND

Issued

Jul 7, 2000, 9:45 AM CDT (14:45 UTC)

Expired

Jul 7, 2000, 10:15 AM CDT

In force

30 min

Issued by

NWS Grand Forks, ND

Area

Whole counties; the outline is the Mesonet’s reconstruction

County Nelson County, ND

The Fargo/Grand Forks radar (KMVX), 88 km from the middle of the area, began a volume at 14:45 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.

000 
WUUS53 KFGF 071445
SVRFAR
NDC063-071515-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
945 AM CDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL NELSON COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 1015 AM CDT

* AT 940 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES WEST OF STUMP LAKE...OR ABOUT 21 MILES
  SOUTHEAST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MAPES AT 1005 AM CDT...
  MICHIGAN AT 1010 AM CDT...

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

LAT...LON 4797 9851 4783 9847 4786 9803 4811 9809

NNNN

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 7, 3:50 AM CDT, 5 hours 55 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
350 AM CDT FRI JUL 7 2000

FCST CHALLLENGE...SVR THREAT THIS AM. ADDN TSTMS TNGT.

NEAR TERM...TSTMS ROUNDING THE THICKNESS RIDGE IN SRN MAN ARE
BEGINNING TO DROP SEWD TOWARD NRN MN...WHILE ADDN CONVECTION
DEVELOPS ACROSS THE RRV INTO NW MN...AND ALG THE SFC BNDRY FM SRN
MAN INTO ERN MT. 00Z ETA AND 06Z MESOETA MAINTAIN FAIR AMOUNT OF
INSTABILITY ACRS THE CWFA TDY WITH GOOD DEEP LAYER SHEAR THROUGHTHE
MORNING HOURS. POSSIBLE BOWECHO FORMATION OCCURRING EAST OF MOT AND
MOVING INTO NERN ND. 90+KT H3 JET STREAK EVIDENT LIFTING FM MLS INTO
ISN ATTM PROVIDING DANGEROUS KICK TO ANY ACTIVITY. WILL NEED TO
CLOSELY WATCH ANY DEVELOPMENT...WITH BIGGEST THREAT ACROSS NCNTRL
AND NERN ND THIS AM. MODELS CONTINUE TO FCST PCPN DEVELOPING DOWN
INTO THE RRV AND NW MN THROUGH TDY...SO WILL KEEP POPS IN SCT TO
LIKELY REALM TDY AND TNGT. WILL DROP FFW SINCE STORMS ARE MOVING
RAPIDLY WITH GOOD STEERING FLOW. LOCAL RAINS MAY BE HEAVY AT TIMES
BUT TRAINING ECHOS ARE NOT LIKELY. WILL NEED TO WATCH SITUATION IF
MULTIPLE ECHO PASSES SEEMS A POSSIBILITY.

MID TERM...ETA DRIVES NEXT VORT ACROSS SRN ZONES ON SAT WHILE
KEEPING NORTHERN ZONES ON DRIER NORTH END OF WEAK BOUNDARY. FOR NOW
THIS SEEMS LIKE A REASONABLE DEPICTION WITH SOME AGREEMENT FM NGM.
AVN STAYS DRY.

EXTENDED...NOT MUCH TIME TO LOOK AT EXTENDED. WILL STAY WITH
PREVIOUS PACKAGE.

.FGF...NONE.

GUST

q

Severe Thunderstorm Warnings in North Dakota, 2000Every severe thunderstorm warning in 2000

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.