Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 60, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 9, 2002, 1:48 PM CDT for Polk County, Minnesota. 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 9, 2002, 1:48 PM CDT (18:48 UTC)
- Expired
- Jun 9, 2002, 2:30 PM CDT
- In force
- 42 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Polk County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 68 km from the middle of the area, began a volume at 18:50 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 nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 6.8 hours before the alert went out and 269 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
- 7 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 631 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 091848 SVRFAR MNC119-091930- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 145 PM CDT SUN JUN 9 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN POLK COUNTY IN NORTHWEST MINNESOTA. * UNTIL 230 PM CDT. * AT 140 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF TABOR...OR ABOUT 7 MILES NORTHEAST OF GRAND FORKS...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TABOR AT 150 PM... EUCLID AT 200 PM AND ANGUS AT 205 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4808 9708 4792 9695 4798 9655 4817 9658 54 NNNN
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 9, 9:50 AM CDT, 3 hours 58 minutes earlier.
Area forecast discussion, Jun 9, 9:50 AM CDT, 3 hours 58 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 950 AM CDT SUN JUN 9 2002 .CURRENT OBSERVATIONAL OVERVIEW... 14Z MSAS ANALYSIS DEPICTED LOW PRESSURE OVER WEST CENTRAL SOUTH DAKOTA WITH ASSOCIATED WARM FRONT DRAPED ACROSS SOUTHEAST NORTH DAKOTA INTO MINNESOTA. LATEST SATELLITE IMAGERY AND KMVX RADAR INDICATED OVERNIGHT MCS SLOWLY STARTING TO WEAKEN AS IT HEADS EAST INTO MINNESOTA. ADDITIONAL BACK BUILDING THUNDERSTORM ACTIVITY IN CLOSE PROXIMITY TO AFOREMENTIONED FRONTAL BOUNDARY ALSO SLOWLY ON THE WANE. .FORECAST DETAILS... MAIN FORECAST CHALLENGE THIS AFTERNOON WILL BE POSSIBLE REGENERATION OF CONVECTION ALONG AND NORTH OF FRONTAL BOUNDARY AND ANY RESIDUAL OUTFLOW BOUNDARIES FROM EARLIER CONVECTION. WILL FRESHEN WORDING IN ZONES...OTHERWISE NO MAJOR REVISIONS PLANNED FOR LATE MORNING UPDATE. .FGF...FLOOD WATCH ENTIRE FORECAST AREA TODAY THROUGH MONDAY. BERG
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 10:59 PM CDT | Severe Thunderstorm Warning | FGF | Norman | 46 min |
| Jun 9, 12:07 AM CDT | Severe Thunderstorm Warning | FGF | Norman | 38 min |
| Jun 9, 12:37 AM CDT | Severe Thunderstorm Warning | FGF | Polk | 38 min |
| Jun 9, 1:30 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Mahnomen | 45 min |
| Jun 9, 2:36 AM CDT | Flash Flood Warning | FGF | Polk | 6 hr |
| Jun 9, 3:31 AM CDT | Severe Thunderstorm Warning | FGF | Mahnomen, Norman | 44 min |
| Jun 9, 4:14 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Mahnomen, Norman | 46 min |
| Jun 9, 4:16 AM CDT | Flash Flood Warning | FGF | Norman | 6 hr |
| Jun 9, 4:57 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Mahnomen, Norman | 63 min |
| Jun 9, 5:04 AM CDT | Flash Flood Warning | FGF | Mahnomen | 6 hr |
| Jun 9, 5:23 AM CDT | Flash Flood Warning | FGF | Pennington, Polk, Red Lake | 6 hr |
| Jun 9, 5:53 AM CDT | Tornado Warning | FGF | Becker, Clay | 37 min |
| Jun 9, 5:57 AM CDT | Severe Thunderstorm Warning | FGF | Mahnomen, Norman | 63 min |
| Jun 9, 6:07 AM CDT | Flash Flood Warning | FGF | Becker, Clay | 6 hr |
| Jun 9, 6:29 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay | 61 min |
| Jun 9, 7:35 AM CDT | Severe Thunderstorm Warning | FGF | Becker | 55 min |
| Jun 9, 7:47 AM CDT | Severe Thunderstorm Warning | FGF | Clearwater | 43 min |
| Jun 9, 7:53 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Hubbard | 67 min |
| Jun 9, 7:56 AM CDT | Flash Flood Warning | FGF | Clearwater | 4 hr |
| Jun 9, 8:28 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater | 62 min |
| Jun 9, 10:51 AM CDT | Severe Thunderstorm Warning | FGF | Polk | 39 min |
| Jun 9, 11:33 AM CDT | Flash Flood Warning | FGF | Pennington, Polk, Red Lake | 6 hr |
| Jun 9, 5:25 PM CDT | Flash Flood Warning | FGF | Marshall, Pennington, Red Lake | 4 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.