Alert archive / North Dakota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 196, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 9, 2002, 12:59 AM CDT for Cavalier County, North Dakota. It was in force for 46 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
- Aug 9, 2002, 12:59 AM CDT (05:59 UTC)
- Expired
- Aug 9, 2002, 1:45 AM CDT
- In force
- 46 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Cavalier County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 177 km from the middle of the area, began a volume at 06:00 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.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 6.0 hours before the alert went out and 287 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
- 863 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1927 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
379 WUUS53 KFGF 090559 SVRFAR NDC019-090645- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1259 AM CDT FRI AUG 9 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN CAVALIER COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 145 AM CDT. * AT 1255 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTHWEST OF LANGDON...MOVEMENT WAS TO THE NORTH AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LANGDON AT 100 AM... DRESDEN AT 105 AM... WALES AT 115 AM AND MOUNT CARMEL AT 120 AM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM FRIDAY MORNING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4864 9862 4865 9834 4931 9835 4929 9873 8 NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:23 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 37 min |
| Aug 8, 7:30 PM CDT | Tornado Warning | FGF | Traill | 45 min |
| Aug 8, 7:31 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 44 min |
| Aug 8, 8:37 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 38 min |
| Aug 8, 9:59 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 46 min |
| Aug 8, 10:34 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 41 min |
| Aug 8, 11:05 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 40 min |
| Aug 8, 11:15 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey | 60 min |
| Aug 8, 11:26 PM CDT | Tornado Warning | FGF | Benson | 49 min |
| Aug 8, 11:29 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 46 min |
| Aug 9, 12:19 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey | 41 min |
| Aug 9, 12:21 AM CDT | Flash Flood Warning | FGF | Walsh | 6 hr |
| Aug 9, 12:24 AM CDT | Severe Thunderstorm Warning | FGF | Towner | 51 min |
| Aug 9, 12:56 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 49 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2002Every severe thunderstorm warning in 2002
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.