Alert archive / North Dakota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 39, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 8, 2002, 11:40 PM CDT for Eddy County, North Dakota. It was in force for 35 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 8, 2002, 11:40 PM CDT (04:40 UTC)
- Expired
- Jun 9, 2002, 12:15 AM CDT
- In force
- 35 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Eddy County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 135 km from the middle of the area, began a volume at 04:43 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 9, 12:00 AM CDT | Hail 1.5 | Sheyenne, ND |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
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 8, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 4.7 hours before the alert went out and 156 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
- 51 J/kg
- Mixed-layer CIN
- -266 J/kg
- Mixed-layer LCL
- 1631 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 209 m²/s²
- 0-3 km storm-relative helicity
- 490 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 090440 SVRFAR NDC027-090515- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1139 PM CDT SAT JUN 8 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EDDY COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 1215 AM CDT. * AT 1138 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES SOUTHWEST OF NEW ROCKFORD...OR ABOUT 36 MILES SOUTH OF DEVILS LAKE...MOVEMENT WAS TO THE NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... NEW ROCKFORD AT 1145 PM. 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 SUNDAY MORNING FOR NORTHEAST NORTH DAKOTA. LAT...LON 4764 9938 4751 9919 4771 9869 4786 9895 RIDDLE NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 10:24 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 36 min |
| Jun 8, 10:59 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 46 min |
| Jun 8, 11:58 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 47 min |
| Jun 9, 12:30 AM CDT | Severe Thunderstorm Warning | FGF | Nelson | 45 min |
| Jun 9, 12:37 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 38 min |
| Jun 9, 1:10 AM CDT | Flash Flood Warning | FGF | Eddy | 6 hr |
| Jun 9, 1:18 AM CDT | Severe Thunderstorm Warning | FGF | Griggs | 42 min |
| Jun 9, 1:45 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 45 min |
| Jun 9, 2:00 AM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 45 min |
| Jun 9, 2:06 AM CDT | Flash Flood Warning | FGF | Grand Forks | 6 hr |
| Jun 9, 3:34 AM CDT | Flash Flood Warning | FGF | Benson, Nelson, Ramsey | 6 hr |
| Jun 9, 6:47 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom | 58 min |
| Jun 9, 7:15 AM CDT | Flash Flood Warning | FGF | Barnes, Cass | 4 hr |
| Jun 9, 7:17 AM CDT | Flash Flood Warning | FGF | Barnes, Cass | 4 hr |
| Jun 9, 9:42 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 48 min |
| Jun 9, 11:33 AM CDT | Flash Flood Warning | FGF | Grand Forks | 6 hr |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.