Alert archive / North Dakota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 79, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 22, 2002, 6:43 AM CDT for Nelson County, Walsh County, North Dakota. It was in force for 47 min. 4 reports 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 22, 2002, 6:43 AM CDT (11:43 UTC)
- Expired
- Jun 22, 2002, 7:30 AM CDT
- In force
- 47 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
Counties Nelson County, ND, Walsh County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 22, 6:45 AM CDT | Hail 0.75 | Lankin, ND | |
| Jun 22, 7:00 AM CDT | Hail 1 | Lakota, ND | |
| Jun 22, 7:30 AM CDT | Hail 0.75 | Lankin, ND | |
| Jun 22, 7:35 AM CDT | Hail 1.5 | Michigan City, ND | Hail punched 12 holes in a fiberglass porch roof. |
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 nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 11.7 hours before the alert went out and 240 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
- 643 J/kg
- Mixed-layer CIN
- -239 J/kg
- Mixed-layer LCL
- 1784 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 221143 SVRFAR NDC063-099-221230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 643 AM CDT SAT JUN 22 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NELSON COUNTY IN NORTHEAST NORTH DAKOTA AND WALSH COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 730 AM CDT. * AT 640 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES WEST OF LAKOTA...OR ABOUT 19 MILES EAST OF DEVILS LAKE...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LAKOTA AT 645 AM... MAPES AT 655 AM AND WHITMAN AT 715 AM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4798 9848 4788 9831 4838 9779 4846 9807 BERG NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 5:23 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 52 min |
| Jun 22, 6:12 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 48 min |
| Jun 22, 7:16 AM CDT | Flash Flood Warning | FGF | Benson, Cavalier, Ramsey, Towner | 8 hr |
| Jun 22, 7:20 AM CDT | Flash Flood Warning | FGF | Benson, Cavalier, Ramsey, Towner | 8 hr |
| Jun 22, 7:24 AM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 51 min |
| Jun 22, 7:29 AM CDT | Severe Thunderstorm Warning | FGF | Nelson | 31 min |
| Jun 22, 7:46 AM CDT | Flash Flood Warning | FGF | Pembina, Walsh | 8 hr |
| Jun 22, 8:14 AM CDT | Flash Flood Warning | FGF | Nelson | 6 hr |
| Jun 22, 8:29 AM CDT | Severe Thunderstorm Warning | FGF | Walsh | 46 min |
| Jun 22, 9:11 AM CDT | Severe Thunderstorm Warning | FGF | Walsh | 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.