Alert archive / Minnesota / Tornado Warnings in 2012
Tornado Warning 11, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 3, 2012, 7:22 PM CDT for Clearwater County, Polk County, Red Lake County, Minnesota. It was in force for 39 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 3, 2012, 7:22 PM CDT (00:22 UTC)
- Expired
- Aug 3, 2012, 8:01 PM CDT
- In force
- 39 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
Counties Clearwater County, MN, Polk County, MN, Red Lake County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 124 km from the middle of the area, began a volume at 00:22 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 3, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 0.4 hours before the alert went out and 199 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
- 96 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 1457 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
282
WFUS53 KFGF 040022
TORFGF
MNC029-119-125-040100-
/O.NEW.KFGF.TO.W.0011.120804T0022Z-120804T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
722 PM CDT FRI AUG 3 2012
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN CLEARWATER COUNTY IN NORTHWEST MINNESOTA...
EAST CENTRAL POLK COUNTY IN NORTHWEST MINNESOTA...
SOUTHEASTERN RED LAKE COUNTY IN NORTHWEST MINNESOTA...
* UNTIL 800 PM CDT
* AT 717 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM WAS
LOCATED 3 MILES NORTHWEST OF ERSKINE...OR 30 MILES SOUTH OF THIEF
RIVER FALLS...MOVING TO THE NORTHEAST AT 35 MPH.
* THE TORNADIC STORM WILL BE NEAR...
OKLEE AROUND 740 PM CDT.
OLGA AROUND 745 PM CDT.
TRAIL AROUND 750 PM CDT.
GULLY AND GONVICK AROUND 755 PM CDT.
THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE TORNADIC STORM
INCLUDE BERNER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.
&&
LAT...LON 4758 9608 4775 9619 4794 9564 4793 9559
4796 9558 4801 9541 4778 9527
TIME...MOT...LOC 0022Z 246DEG 30KT 4770 9600
$$
AV2 follow-up statements
156
WWUS53 KFGF 040040
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
740 PM CDT FRI AUG 3 2012
MNC029-119-125-040100-
/O.CON.KFGF.TO.W.0011.000000T0000Z-120804T0100Z/
RED LAKE MN-CLEARWATER MN-POLK MN-
740 PM CDT FRI AUG 3 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL POLK...
NORTHERN CLEARWATER AND SOUTHEASTERN RED LAKE COUNTIES IN NORTHWEST
MINNESOTA UNTIL 800 PM CDT...
AT 736 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES SOUTH OF
OKLEE...OR 30 MILES SOUTHEAST OF THIEF RIVER FALLS...MOVING TO THE
NORTHEAST AT 35 MPH.
THE TORNADIC STORM WILL BE NEAR...
TRAIL AROUND 750 PM CDT.
GULLY AROUND 755 PM CDT.
BERNER AND GONVICK AROUND 800 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.
&&
LAT...LON 4764 9586 4782 9599 4794 9565 4793 9559
4796 9558 4801 9541 4778 9527
TIME...MOT...LOC 0040Z 246DEG 30KT 4776 9579
$$
AV693
WWUS53 KFGF 040101
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
801 PM CDT FRI AUG 3 2012
MNC029-119-125-040109-
/O.CAN.KFGF.TO.W.0011.000000T0000Z-120804T0100Z/
RED LAKE MN-CLEARWATER MN-POLK MN-
801 PM CDT FRI AUG 3 2012
...THE TORNADO WARNING FOR EAST CENTRAL POLK...NORTHERN CLEARWATER
AND SOUTHEASTERN RED LAKE COUNTIES IN NORTHWEST MINNESOTA IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING IS NO LONGER SHOWING TORNADIC
TENDENCIES.
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT.
LAT...LON 4764 9586 4782 9599 4794 9565 4793 9559
4796 9558 4801 9541 4778 9527
TIME...MOT...LOC 0059Z 246DEG 30KT 4783 9558
$$
AVThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:11 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen, Norman, Polk, Red Lake | 64 min |
| Aug 3, 7:20 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Hubbard, Otter Tail, Wadena, Wilkin | 55 min |
| Aug 3, 7:32 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Mahnomen, Norman | 58 min |
| Aug 3, 7:44 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wilkin | 61 min |
| Aug 3, 7:54 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Pennington, Polk, Red Lake | 66 min |
| Aug 3, 7:57 PM CDT | Tornado Warning | FGF | Becker, Clay, Mahnomen, Norman | 48 min |
| Aug 3, 8:06 PM CDT | Severe Thunderstorm Warning | FGF | Grant, Otter Tail, Wilkin | 54 min |
| Aug 3, 8:12 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Clearwater, Hubbard, Otter Tail, Wadena | 63 min |
| Aug 3, 8:20 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Norman and 1 more | 55 min |
| Aug 3, 8:27 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Lake of the Woods, Marshall, Roseau | 63 min |
Nearby
Tornado Warnings in Minnesota, 2012Every tornado warning in 2012Tornadoes in 2012
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.