Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 20, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 6, 2003, 4:11 PM CDT for Polk County, Minnesota. It was in force for 49 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
- Jun 6, 2003, 4:11 PM CDT (21:11 UTC)
- Expired
- Jun 6, 2003, 5:00 PM CDT
- In force
- 49 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Polk County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 113 km from the middle of the area, began a volume at 21:11 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
International Fa, MN (KINL), launched 12:00Z, 9.2 hours before the alert went out and 215 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.
- Mixed-layer CAPE
- 19 J/kg
- Mixed-layer CIN
- -134 J/kg
- Mixed-layer LCL
- 1304 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
048 WUUS53 KFGF 062111 SVRFGF MNC119-062200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 411 PM CDT FRI JUN 6 2003 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN POLK COUNTY IN NORTHWEST MINNESOTA. * UNTIL 500 PM CDT. * AT 406 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES EAST OF MCINTOSH...OR ABOUT 36 MILES SOUTHEAST OF THIEF RIVER FALLS...MOVEMENT WAS TO THE NORTHWEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MCINTOSH AT 415 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4754 9580 4768 9563 4775 9583 4760 9607 $$ 8/DK
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 Jun 6, 2:02 PM CDT, 2 hours 9 minutes earlier.
Area forecast discussion, Jun 6, 2:02 PM CDT, 2 hours 9 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 202 PM CDT FRI JUN 6 2003 .CURRENT OBSERVATIONS... SCATTERED SEVERE CONVECTION CURRENTLY ONGOING. MAIN FOCUSING MECHANISM IS INVERTED TROUGH EXTENDING UP THE RED RIVER VALLEY. ANOTHER AREA OF CONVECTION LOCATED ACROSS THE LAKE OF THE WOODS REGION WHERE SFC DEWPOINTS AROUND 60 HAVE POOLED ALONG ONE OF MANY BOUNDARIES. GOOD CONVERGENT FLOW CONTINUES OVER EASTERN NORTH DAKOTA AS AREA REMAINS BETWEEN TWO UPPER LEVEL SYSTEMS WHICH WILL LIKELY KEEP CONVECTION GOING LATE THIS EVENING. .SHORT TERM(TONIGHT-MON)... AREA WILL REMAIN UNSTABLE THROUGH SATURDAY EVENING AS INVERTED TROUGH SLOWLY MOVES THROUGH THE FORECAST AREA. TONIGHT WILL BE SIMILAR TO LAST NIGHT WITH CONVECTION BECOMING MORE SCATTERED AFTER SUNSET WITH SOME LINGERING PRECIP THROUGHOUT THE NIGHT. AS MONTANA UPPER LOW BEGINS TO SHIFT SOUTHEAST ON SATURDAY...ANOTHER WAVE WILL MOVE OVER THE BOUNDARY AND WILL LIKELY SET OFF ANOTHER ROUND OF CONVECTION. CONVECTION WILL BE SIMILAR TO THE PAST TWO DAYS WITH MARGINALLY SEVERE STORMS POSSIBLE DURING THE AFTERNOON. SYSTEM PULLS OUT OF THE REGION SUNDAY WITH MUCH OF THE REGION HAVING SUN BY THE AFTERNOON. NEXT BOUNDARY MOVES THROUGH THE REGION MONDAY WHICH WILL BRING THE NEXT CHANCE OF THUNDER. .EXTENDED... REGION TO TRANSITION FROM NW FLOW ALOFT INTO MORE ZONAL PATTERN THROUGH EXTENDED PERIOD. OVERALL REASONABLE CONSISTENCY BETWEEN GFS RUNS AND AGREEMENT WITH OTHER MODELS. MAIN CHALLENGE WILL BE TIMING WITH WAVES AND THIS TO NOT TOO FAR OFF. INITIAL WAVE AND ASSOCIATED SURFACE BOUNDARY MONDAY NIGHT/TUESDAY AND NEXT WAVE WED NIGHT THURSDAY. AS WITH TIMING OF WAVES...TEMPERATURES WILL ALSO BE CHALLENGE. WARMEST TEMPERATURES THIS PERIOD APPEAR MID WEEK PRIOR TO STRONGER WAVE. .FGF...NONE. DONAVON/VOELKER
Hazardous weather outlook, Jun 6, 7:05 AM CDT, 9 hours 6 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-061400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 705 AM CDT FRI JUN 6 2003 ...SEVERE THUNDERSTORMS ARE EXPECTED ACROSS PARTS OF NORTHWEST AND WEST CENTRAL MINNESOTA FOR TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA. .DAY ONE...THIS AFTERNOON AND EVENING ISOLATED SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING EAST OF A LINE FROM ROSEAU TO FERGUS FALLS MINNESOTA. THUNDERSTORMS WILL PRODUCE MAINLY LARGE HAIL. THE SEVERE THUNDERSTORMS WILL DEVELOP AFTER THE NOON HOUR AND SHOULD DISSIPATE AROUND 8 PM. AFTERNOON HEATING AND RELATIVELY COLD AIR ALOFT WILL PRODUCE UNSTABLE CONDITIONS AGAIN THIS AFTERNOON. LOW PRESSURE OVER NORTHWEST MINNESOTA WILL MOVE INTO EASTERN MINNESOTA BY THIS EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. HOPPES
In the hours before
Local storm report, Jun 6, 10:27 AM CDT, 5 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
1027 AM CDT FRI JUN 6 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0325 PM ERHARD MN .75 INCH HAIL
06/05/03 OTTER TAIL
TGLocal storm report, Jun 6, 1:32 PM CDT, 2 hours 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
132 PM CDT FRI JUN 6 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0115 PM 8 W REYNOLDS ND .75 INCH HAIL
06/06/03 TRAILL REPORTED BY PUBLIC.
0115 PM 3 S HOLMES ND .75 INCH HAIL
06/06/03 GRAND FORKS REPORTED BY PUBLIC.
TGLocal storm report, Jun 6, 1:59 PM CDT, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
159 PM CDT FRI JUN 6 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0130 PM 4 SW WANNASKA MN .75 INCH HAIL
06/06/03 ROSEAU REPORTED BY PUBLIC.
TGLocal storm report, Jun 6, 2:26 PM CDT, 1 hour 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
226 PM CDT FRI JUN 6 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0216 PM 7 W WALES ND TORNADO
06/06/03 CAVALIER REPORTED BY LAW
ENFORCEMENT.
TGThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 7:28 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 62 min |
| Jun 6, 1:07 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 38 min |
| Jun 6, 3:58 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 47 min |
| Jun 6, 4:35 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 40 min |
| Jun 6, 4:47 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 43 min |
| Jun 6, 4:51 PM CDT | Tornado Warning | FGF | Becker | 39 min |
| Jun 6, 5:07 PM CDT | Severe Thunderstorm Warning | FGF | Red Lake | 38 min |
| Jun 6, 5:12 PM CDT | Severe Thunderstorm Warning | FGF | Norman | 48 min |
| Jun 6, 5:14 PM CDT | Flash Flood Warning | FGF | Clay | 4 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2003Every 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.