Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 142, NWS Grand Forks, ND

July 14, 2003Norman County, Polk County, Minnesota; Traill County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 14, 2003, 9:49 PM CDT for Norman County, Polk County, Minnesota; Traill County, North Dakota. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 14, 2003, 9:49 PM CDT (02:49 UTC)
Expired: Jul 14, 2003, 10:45 PM CDT
In force: 56 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

Counties Norman County, MN, Polk County, MN, Traill County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 51 km from the middle of the area, began a volume at 02:51 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.8 hours before the alert went out and 320 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2616 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

255 
WUUS53 KFGF 150249
SVRFGF
MNC107-119-NDC097-150345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
948 PM CDT MON JUL 14 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  NORMAN COUNTY IN NORTHWEST MINNESOTA...
  POLK COUNTY IN NORTHWEST MINNESOTA AND
  TRAILL COUNTY IN SOUTHEAST NORTH DAKOTA.

* UNTIL 1045 PM CDT.

* AT 941 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
  LEADING EDGE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 10
  MILES NORTH OF GRAND FORKS TO 26 MILES SOUTHWEST OF GRAND FORKS...
  MOVEMENT WAS TO THE SOUTHEAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...

  EAST GRAND FORKS AT 955 PM...
  PORTLAND AT 955 PM...
  MAYVILLE AT 1000 PM...
  BUXTON AT 1005 PM AND
  CUMMINGS AT 1010 PM.

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

LAT...LON 4814 9659 4815 9706 4766 9687 4765 9749
          4728 9744 4726 9680 4720 9609 4750 9610
          4765 9594 4779 9648

$$

DONAVON/GJG

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 14, 9:00 PM CDT, 49 minutes earlier.

Area forecast discussion, Jul 14, 9:00 PM CDT, 49 minutes before

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
900 PM CDT MON JUL 14 2003

DISCUSSION DELAYED DUE TO SEVERE WEATHER.

.FGF...TORNADO WATCH #746 UNTIL 10PM CDT FOR WESTCENTRAL MN.

GUST

Hazardous weather outlook, Jul 14, 6:31 AM CDT, 15 hours 18 minutes before

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-141430-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
631 AM CDT MON JUL 14 2003

...SLIGHT RISK OF SEVERE THUNDERSTORMS OVER EASTERN NORTH
DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA TODAY AND INTO EARLY
EVENING.

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH DAKOTA...WEST
CENTRAL AND NORTHWEST MINNESOTA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EXTREME EASTERN
NORTH DAKOTA THIS MORNING AND MAINLY OVER NORTHWEST AND WEST CENTRAL
MINNESOTA THIS AFTERNOON AND EARLY EVENING. THE PRIMARY THREAT WILL
BE LARGE HAIL AND DAMAGING WINDS.

AN AREA OF LOW PRESSURE OVER THE CENTRAL DAKOTAS WILL PUSH EAST
ACROSS THE REGION TODAY EXITING EASTERN AREAS EARLY THIS EVENING.
WARM...MOIST AND UNSTABLE AIR AHEAD OF THIS AREA OF LOW PRESSURE
WILL INTERACT WITH AN UPPER LEVEL DISTURBANCE TO PRODUCE THESE
STORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE AGAIN EXPECTED ACROSS MAINLY SOUTHERN AREAS
WEDNESDAY NIGHT WITH CHANCES CONTINUING ACROSS THE ENTIRE AREA
THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY INTO EARLY EVENING.

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT
HTTP://WWW.CRH.NOAA.GOV/FGF/INDEX.HTML (ALL LOWER CASE)

VOELKER

In the hours before

Local storm report, Jul 14, 6:13 PM CDT, 3 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
613 PM CDT MON JUL 14 2003

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

0606 PM    1.5 E DOROTHY             MN   1.00 INCH HAIL
07/14/03   RED LAKE                       REPORTED BY TRAINED
                                          SPOTTER.

GJG

Local storm report, Jul 14, 6:21 PM CDT, 3 hours 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
621 PM CDT MON JUL 14 2003

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

0621 PM    RED LAKE FALLS            MN   1.00 INCH HAIL
07/14/03   RED LAKE                       REPORTED BY LAW
                                          ENFORCEMENT.

GJG

Local storm report, Jul 14, 8:21 PM CDT, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
821 PM CDT MON JUL 14 2003

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

0815 AM    8 ENE STARKWEATHER        ND   1.00 INCH HAIL
07/14/03   RAMSEY                         REPORTED BY TRAINED
                                          SPOTTER.

GJG

Local storm report, Jul 14, 8:24 PM CDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
824 PM CDT MON JUL 14 2003

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

0816 AM    10 W EDMORE               ND   1.00 INCH HAIL
07/14/03   RAMSEY                         REPORTED BY TRAINED
                                          SPOTTER.

GJG

Local storm report, Jul 14, 9:26 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
926 PM CDT MON JUL 14 2003

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

0840 AM    6 ESE FAIRDALE            ND   .75 INCH HAIL
07/14/03   WALSH

GJG

Local storm report, Jul 14, 9:34 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
934 PM CDT MON JUL 14 2003

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

0803 PM    13 W LANGDON              ND   .75 INCH HAIL
07/14/03   CAVALIER                       HAIL FROM 803 TO 808 PM
                                          REPORTED BY LAW
                                          ENFORCEMENT.

0930 AM    1 W MEKINOCK              ND   .75 INCH HAIL
07/14/03   GRAND FORKS                    DIME HAIL WITH WINDS
                                          GUSTING TO 55 MPH REPORTED
                                          BY LAW ENFORCEMENT.

GJG

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 7:53 PM CDT	Severe Thunderstorm Warning	FGF	Ramsey	52 min
Jul 14, 8:08 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier	37 min
Jul 14, 8:31 PM CDT	Severe Thunderstorm Warning	FGF	Walsh	44 min
Jul 14, 8:47 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Ramsey	43 min
Jul 14, 9:19 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	41 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2003 Severe Thunderstorm Warnings in North Dakota, 2003 Every severe thunderstorm warning in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.