Alert archive / North Dakota / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 79, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 2, 2003, 11:31 AM CDT for Nelson County, Ramsey County, Walsh County, North Dakota. It was in force for 44 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 2, 2003, 11:31 AM CDT (16:31 UTC)
- Expired
- Jul 2, 2003, 12:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
Counties Nelson County, ND, Ramsey County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 116 km from the middle of the area, began a volume at 16:34 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 |
|---|---|---|---|
| Jul 2, 7:00 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 11:20 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 4.5 hours before the alert went out and 237 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
- 2034 J/kg
- Mixed-layer CIN
- -295 J/kg
- Mixed-layer LCL
- 1447 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
430 WUUS53 KFGF 021631 SVRFGF NDC063-071-099-021715- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1129 AM CDT WED JUL 2 2003 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NELSON COUNTY IN NORTHEAST NORTH DAKOTA... EASTERN RAMSEY COUNTY IN NORTHEAST NORTH DAKOTA AND WESTERN WALSH COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 1215 PM CDT. * AT 1124 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE LEADING EDGE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 26 MILES NORTH OF DEVILS LAKE TO 17 MILES SOUTHEAST OF DEVILS LAKE... MOVEMENT WAS TO THE EAST AT 40 MPH. THESE STORMS HAVE A HISTORY OF 60 TO 70 MPH WINDS IN THE DEVILS LAKE AREA. * SEVERE THUNDERSTORMS WILL BE NEAR... TOLNA AT 1135 AM... LAKOTA AT 1145 AM... LAWTON AT 1145 AM AND ADAMS AT 1215 PM CDT. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4852 9888 4776 9843 4798 9797 4852 9801 $$ DTR/06
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 2, 9:30 AM CDT, 2 hours 1 minute earlier.
Area forecast discussion, Jul 2, 9:30 AM CDT, 2 hours 1 minute before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 930 AM CDT WED JUL 2 2003 ...FORECAST CHALLENGE FOR UPDATE CONCERNS CONVECTIVE THREAT. STRONG CONVECTION WHICH DEVELOPED OVER WESTERN DAKOTAS CONTINUES TO PROPAGATE EAST/NORTHEAST WITH NORTHERN CLUSTER BECOMING TO TRACK MORE EAST AS IT CRESTS RIDGE. CONVECTION RIDING ALONG LOW LEVEL BOUNDARY WITH 70 DEWPOINTS POOLING ALONG BOUNDARY. AM ALSO SEEING DEVELOPMENT CLOUD TOPS CONTINUE TO COOL FROM IR IMAGERY. MAIN ADJUSTMENTS TO UPDATE WILL BE TIMING WITH CONVECTION BASED ON CURRENT TRENDS. TEMPERATURES SEEM IN REASON AS TEMPERATURES ALREADY APPROACHING 80. CONVECTION MAY HOLD SOME TEMPERATURES DOWN HOWEVER ANY BREAKS WILL ALLOW AREA TO QUICKLY HEAT OUT. .FGF...NONE. VOELKER
Hazardous weather outlook, Jul 2, 6:35 AM CDT, 4 hours 56 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-021415- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 635 AM CDT WED JUL 2 2003 ...THE POTENTIAL EXISTS FOR A SIGNIFICANT SEVERE WEATHER OUTBREAK ACROSS THE ENTIRE AREA FOR LATE THIS AFTERNOON AND EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ACROSS THE REGION TODAY. THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING WINDS...LARGE HAIL AND VERY HEAVY RAINS. DUE TO THE EXTREME INSTABILITY IN PLACE OVER THE REGION ISOLATED TORNADOES AND SIGNIFICANT STRAIGHT LINE WIND DAMAGE (LARGE BOW ECHO) CANNOT BE RULED OUT. EXPECT RAPID SEVERE THUNDERSTORM DEVELOPMENT TO OCCUR ALONG A DEVILS LAKE TO VALLEY CITY LINE BY MID TO LATE AFTERNOON AND THEN WORK EAST ACROSS THE REMAINDER OF EASTERN NORTH DAKOTA AND WEST CENTRAL AND NORTHWEST MINNESOTA THIS EVENING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. THUNDERSTORMS ARE POSSIBLE ACROSS WEST CENTRAL MINNESOTA AND NORTHWEST MINNESOTA THURSDAY MORNING. ADDITIONAL THUNDERSTORM CHANCES LOOM ON TO CLOSE OUT THE JULY FOURTH WEEKEND ON SATURDAY NIGHT AND SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED LATE THIS AFTERNOON AND EVENING. BERG
In the hours before
Local storm report, Jul 2, 11:07 AM CDT, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
1107 AM CDT WED JUL 2 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1030 AM FILLMORE ND .75 INCH HAIL
07/02/03 BENSON
DPORTERLocal storm report, Jul 2, 11:23 AM CDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
1123 AM CDT WED JUL 2 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1100 AM CHURCHS FERRY ND E70 WIND GUST
07/02/03 RAMSEY ESTIMATED 65-70 MPH
1103 AM 3 N MINNEWAUKAN ND E60 MPH WIND GUST
07/02/03 BENSON ESTIMATED 60 MPH. REPORTED
BY CO-OP OBSERVER.
1115 AM DEVILS LAKE ND 62 MPH WIND GUST
07/02/03 RAMSEY DVL AWOS 54 KT WIND GUST
DPORTERThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 10:01 AM CDT | Severe Thunderstorm Warning | FGF | Towner | 44 min |
| Jul 2, 10:06 AM CDT | Severe Thunderstorm Warning | FGF | Benson | 39 min |
| Jul 2, 10:46 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 44 min |
| Jul 2, 10:53 AM CDT | Severe Thunderstorm Warning | FGF | Eddy | 37 min |
| Jul 2, 11:34 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 26 min |
| Jul 2, 11:44 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 46 min |
| Jul 2, 12:16 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Walsh | 44 min |
| Jul 2, 12:31 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 44 min |
| Jul 2, 12:50 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 40 min |
| Jul 2, 1:00 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 45 min |
| Jul 2, 1:15 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 30 min |
| Jul 2, 1:27 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 33 min |
| Jul 2, 1:32 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 43 min |
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.