Alert archive / North Dakota / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 35, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 21, 2003, 8:18 PM CDT for Ramsey County, Walsh County, North Dakota. It was in force for 42 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 21, 2003, 8:18 PM CDT (01:18 UTC)
- Expired
- Jun 21, 2003, 9:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
Counties Ramsey County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 117 km from the middle of the area, began a volume at 01:20 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 2:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 6:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 1.3 hours before the alert went out and 243 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
- 527 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 1228 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 220118 SVRFGF NDC071-099-220200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 818 PM CDT SAT JUN 21 2003 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN RAMSEY COUNTY IN NORTHEAST NORTH DAKOTA AND WEST CENTRAL WALSH COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 900 PM CDT. * AT 815 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHWEST OF BROCKET...OR ABOUT 24 MILES EAST OF DEVILS LAKE...MOVEMENT WAS TO THE NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LAWTON AT 825 PM. IF SEVERE WEATHER IS OBSERVED CONTACT YOUR LOCAL LAW ENFORCEMENT AND ASK THEM TO RELAY YOUR INFORMATION TO THE NATIONAL WEATHER SERVICE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM SATURDAY EVENING FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 200 AM SUNDAY MORNING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4823 9858 4815 9843 4838 9805 4850 9833 $$ HOPPES
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 21, 4:16 PM CDT, 4 hours 2 minutes earlier.
Area forecast discussion, Jun 21, 4:16 PM CDT, 4 hours 2 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 245 PM CDT SAT JUN 21 2003 MAIN FORECAST CHALLENGE REMAINS CONVECTIVE POTENTIAL THROUGHOUT THE EARLY PERIODS. MODELS IN VERY GOOD AGREEMENT WITH LARGE SCALE FEATURES AND DIFFER MOST WITH USUAL THERMAL FIELDS AND CONVECTIVE QPF PLACEMENT. WILL CONTINUE TO FOLLOW A MODEL BLEND IN THE GRIDS. WILL FIRST EXTEND WIND ADVISORY INTO THE EARLY EVENING. OTHERWISE... WILL BE WATCHING FOR CONVECTION TO FIRE LATE THIS AFTERNOON/EARLY EVENING. COLD FRONT NOW OVER WESTERN ND WITH DEW POINTS IN THE LOW-MID 60S ALONG/AHEAD OF THE FRONT. MSAS SHOWS LIS OF -7 WEST OF KBIS ALONG WITH GOOD MOISTURE CONVERGENCE. ETA STILL PEGGING PORTIONS OF THE FA WITH CAPE OF 1500-2200 J/KG BY 00Z SUN. AS MENTIONED IN PRIOR DISCUSSION...CONVECTIVE TEMPS PRETTY HIGH INITIALLY (UPPER 80S). SO AS BETTER DYNAMICS AND CONVERGENCE ALONG THE COLD FRONT COME INTO PLAY LATE THIS AFTERNOON/EVENING...STORMS ARE EXPECTED TO RAPIDLY INTENSIFY AND SPREAD ENE. INHERITED ZONES HAVE LONG BEEN ADVERTISING THE SEVERE/HEAVY RAIN POTENTIAL TONIGHT. MAIN THREATS LOOK TO REMAIN LARGE HAIL AND DAMAGING WINDS. FRONTAL BOUNDARY WILL STALL OVER EASTERN ND BY 12Z SUN...SO STILL EXPECT TEMPS TO HOLD UP PRETTY HIGH TONIGHT WITH BEST FALL POTENTIAL IN THE WESTERN FA. THE GUSTY WINDS SHOULD TAPER OFF AGAIN THIS EVENING (AWAY FROM ANY STORMS). WILL LIKELY AGAIN BE SOME LINGERING CONVECTIVE CLOUD DEBRIS LEFT OVER SUN MORNING. WILL NOT BE TOO CUTE WITH TIMING ON THE THUNDER REDEVELOPMENT. WITH A POTENTIAL FOR SOME LINGERING SHOWER/STORMS EARLY AND DEVELOPMENT AGAIN IN THE AFTERNOON...WILL JUST LEAVE A BROADBRUSHED CHANCE IN THE GRIDS. HOW FAST THE FRONTAL BOUNDARY MOVES AND WHERE IT SETS UP ON SUN WITH HAVE A BIG AFFECT ON TEMPS. WILL GO A BIT COOLER...ESPECIALLY ACROSS THE NORTH. SPC HAS EXPANDED THE MODERATE RISK AREA A BIT FURTHER NORTH SUNDAY AND ALSO BACKED THE SLIGHT RISK AREA BACK INTO THE KDVL REGION. UPPER JET DYNAMICS A BIT MORE IMPRESSIVE AS ARE THE 500 MB WINDS. GOOD MOISTURE FEED ALSO REMAINS IN PLACE. WILL AGAIN GO WITH SEVERE/HEAVY RAIN WORDING LATE SUN AFTERNOON/SUN NIGHT IN THE GRIDS. MODELS DIFFER A BIT ON MON STORM SOLUTIONS...BUT WITH BOUNDARY AND SPC DAY 3 SLIGHT RISK AREA CLOSE BY...WILL ADD IN A THUNDER CHANCE ACROSS SOUTHERN ZONES. WILL PUSH BACK THE BRIEF DRY BREAK INTO MON NIGHT AND KEEP THUNDER CHANCE TUE. .EXTENDED...MRF SHOWS LONG WAVE TROF EXTENDING FROM IDAHO PANHANDLE TO THE FOUR CORNERS WITH RRV STILL IN SOUTHWESTERLY FLOW ALOFT. HOWEVER...SFC HIGH SETTLES OVER THE BLACK HILLS OF SOUTH DAKOTA LEAVING US WITH FEW CLOUDS AND A WARM DAY. SFC LOW EJECTED FROM FOUR CORNERS STARTS TO AFFECT RRV BY MID TUESDAY WITH WRAP-AROUND RAIN TUESDAY NIGHT. RRV CLEARS AS UPPER AIR TROF PASSES TO EAST AND NORTHWESTERLY FLOW ALOFT COMES INTO PLAY. MRF NOW SHOWS NEXT CHANCE FOR RAIN ON THURSDAY VICE FRIDAY AS BEFORE...BUT SINCE FLIP-FLOP BETWEEN DAY 6 AND DAY 7 IS SUSPECT...WE WILL NOT CHANGE IFPS GRIDS AT THIS TIME. .FGF...WIND ADVISORY FOR THE RED RIVER VALLEY UNTIL 9 PM CDT. GODON/LUKES
Hazardous weather outlook, Jun 21, 5:47 AM CDT, 14 hours 31 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-211400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 547 AM CDT SAT JUN 21 2003 ...SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EASTERN NORTH DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA THIS AFTERNOON THROUGH SUNDAY NIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF EASTERN NORTH DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA THIS AFTERNOON THROUGH SUNDAY. SEVERE THUNDERSTORMS MAY DEVELOP BY 3 PM THIS AFTERNOON IN EASTERN NORTH DAKOTA...THEN MOVE EAST INTO MINNESOTA THROUGH THE OVERNIGHT HOURS. THE MAIN THREAT WILL BE LARGE HAIL AND DAMAGING WINDS...ALTHOUGH THERE IS THE CHANCE FOR A FEW ISOLATED TORNADOES LATE THIS AFTERNOON AND EVENING ACROSS EASTERN NORTH DAKOTA AND EXTREME NORTHWEST AND WEST CENTRAL MINNESOTA. IN ADDITION ...SOME THUNDERSTORMS MAY PRODUCE LOCALIZED HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA ON SUNDAY. THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ON SUNDAY ALONG AND SOUTH OF A LIDGERWOOD TO WAHPETON TO WADENA LINE. THE MAIN THREAT WILL BE LARGE HAIL AND DAMAGING WIND...WITH ISOLATED TORNADOES IN THE MODERATE RISK AREA. THUNDERSTORMS SHOULD DIMINISH SUNDAY MORNING...BUT ONCE AGAIN DEVELOP EARLY SUNDAY AFTERNOON ACROSS THE ENTIRE REGION AND PERSIST THROUGH SUNDAY NIGHT. HEAVY RAIN IS ONCE AGAIN POSSIBLE...WHICH MAY CAUSE LOCALIZED FLOODING...ESPECIALLY TO AREAS RECEIVING HEAVY RAIN ON SATURDAY AND SATURDAY NIGHT. THERE IS THE CHANCE FOR THUNDERSTORMS ACROSS THE REGION MONDAY NIGHT AND TUESDAY...THEN AGAIN ON FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED LATER THIS AFTERNOON THROUGH SUNDAY NIGHT ACROSS THE AREA. KELLENBENZ
In the hours before
Local storm report, Jun 21, 6:59 PM CDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
659 PM CDT SAT JUN 21 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0645 PM 1 S WARWICK ND .88 INCH HAIL
06/21/03 BENSON REPORTED BY PUBLIC.
MMLLocal storm report, Jun 21, 7:11 PM CDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
711 PM CDT SAT JUN 21 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0705 PM 5 W WARWICK ND .75 INCH HAIL
06/21/03 BENSON REPORTED BY PUBLIC.
PM
DPORTERLocal storm report, Jun 21, 7:19 PM CDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
719 PM CDT SAT JUN 21 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0713 PM 8 SW NEW ROCKFORD ND .75 INCH HAIL
06/21/03 EDDY REPORTED BY PUBLIC.
DPORTERLocal storm report, Jun 21, 7:55 PM CDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
755 PM CDT SAT JUN 21 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0715 PM 6 N WARWICK ND .88 INCH HAIL
06/21/03 BENSON REPORTED BY CO-OP
OBSERVER.
DPORTERLocal storm report, Jun 21, 8:04 PM CDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
804 PM CDT SAT JUN 21 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0755 PM 6 N PEKIN ND .75 INCH HAIL
06/21/03 NELSON REPORTED BY PUBLIC.
DPORTERLocal storm report, Jun 21, 8:11 PM CDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
811 PM CDT SAT JUN 21 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0809 PM BROCKET ND 1.00 INCH HAIL
06/21/03 RAMSEY REPORTED BY FIRE
DEPARTMENT.
MMLThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:16 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 44 min |
| Jun 21, 7:24 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 51 min |
| Jun 21, 7:26 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 49 min |
| Jun 21, 8:01 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 44 min |
| Jun 21, 8:11 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 49 min |
| Jun 21, 8:21 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 24 min |
| Jun 21, 8:26 PM CDT | Tornado Warning | FGF | Ramsey, Walsh | 49 min |
| Jun 21, 8:41 PM CDT | Tornado Warning | FGF | Nelson | 34 min |
| Jun 21, 8:56 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 64 min |
| Jun 21, 9:10 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 65 min |
| Jun 21, 9:37 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 23 min |
| Jun 22, 3:53 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 37 min |
| Jun 22, 6:03 PM CDT | Flash Flood Warning | FGF | Cass, Richland | 12 hr |
Nearby
Severe Thunderstorm Warnings in North Dakota, 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.