Alert archive / Minnesota / Tornado Warnings in 2004
Tornado Warning 57, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 29, 2004, 4:58 PM CDT for Marshall County, Minnesota. It was in force for 47 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 29, 2004, 4:58 PM CDT (21:58 UTC)
- Expired
- Aug 29, 2004, 5:45 PM CDT
- In force
- 47 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Marshall County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 98 km from the middle of the area, began a volume at 22:00 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
International Fa, MN (KINL), launched 12:00Z, 10.0 hours before the alert went out and 249 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
- 10 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 718 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFGF 292158 TORFGF MNC089-292245- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 458 PM CDT SUN AUG 29 2004 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... CENTRAL MARSHALL COUNTY IN NORTHWEST MINNESOTA * UNTIL 545 PM CDT. * AT 455 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION 5 MILES WEST OF RADIUM... OR ABOUT 27 MILES WEST OF THIEF RIVER FALLS...MOVING TO THE EAST AT 10 MPH. * THE TORNADO WILL BE NEAR... RADIUM AT 515 PM... OLD MILL STATE PARK AT 525 PM AND VIKING AT 545 PM. THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. LAT...LON 4833 9686 4818 9685 4819 9632 4839 9634 $$ TG
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 4:18 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 42 min |
| Aug 29, 4:30 PM CDT | Severe Thunderstorm Warning | FGF | Kittson | 45 min |
| Aug 29, 5:05 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 40 min |
| Aug 29, 5:12 PM CDT | Tornado Warning | FGF | Polk | 48 min |
| Aug 29, 5:15 PM CDT | Severe Thunderstorm Warning | FGF | Kittson | 45 min |
| Aug 29, 5:32 PM CDT | Severe Thunderstorm Warning | FGF | Norman | 43 min |
| Aug 29, 5:53 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 37 min |
| Aug 29, 5:55 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 50 min |
| Aug 29, 6:24 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 51 min |
| Aug 29, 6:33 PM CDT | Severe Thunderstorm Warning | FGF | Norman | 27 min |
| Aug 29, 6:37 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 38 min |
| Aug 29, 6:44 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 46 min |
Nearby
Tornado Warnings in Minnesota, 2004Every tornado warning in 2004Tornadoes in 2004
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.