Alert archive / Minnesota / Tornado Warnings in 2010
Tornado Warning 104, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 7, 2010, 6:58 PM CDT for Grant County, Otter Tail County, Wilkin County, Minnesota. It was in force for 62 min. 2 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
- Aug 7, 2010, 6:58 PM CDT (23:58 UTC)
- Expired
- Aug 7, 2010, 8:00 PM CDT
- In force
- 62 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
Counties Grant County, MN, Otter Tail County, MN, Wilkin County, MN
The radar
The Aberdeen radar (KABR), 195 km from the middle of the area, began a volume at 00:03 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 |
|---|---|---|---|
| Aug 7, 6:58 PM CDT | TORNADO 1 | 6 Ssw Fergus Falls, MN | THE TORNADO TRACKED INTERMITTENTLY FOR ROUGHLY 4 MILES TO ABOUT 7 MILES SOUTH SOUTHEAST OF FERGUS FALLS BY 712 PM CDT. THE TORNADO TRACKED MAINLY OVER OPENED FIELDS BUT DID KNOCK DOWN SOME TREES IN SHELTER BELTS AND LEFT SWIRLS IN CROPS. THE TORNADO AND DEBRIS |
| Aug 7, 7:35 PM CDT | TORNADO 1 | 1 N Wendell, MN | THE TORNADO TRACKED INTERMITTENTLY FOR NEARLY 16 MILES TO AROUND 3 MILES EAST OF ERDAHL BY 805 PM CDT. IT CONTINUED INTO DOUGLAS COUNTY FROM THIS POINT. THE TORNADO BROKE DOWN NUMEROUS TREES AND LARGE TREE LIMBS ALONG ITS PATH. AT TIME THE TORNADO WAS WRAPPED |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 7, 5:27 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 12.0 hours before the alert went out and 222 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
- 1979 J/kg
- Mixed-layer CIN
- -159 J/kg
- Mixed-layer LCL
- 799 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
731
WFUS53 KFGF 072358
TORFGF
MNC051-111-167-080100-
/O.NEW.KFGF.TO.W.0104.100807T2358Z-100808T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
658 PM CDT SAT AUG 7 2010
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* TORNADO WARNING FOR...
GRANT COUNTY IN WEST CENTRAL MINNESOTA...
SOUTHWESTERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA...
SOUTHEASTERN WILKIN COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 800 PM CDT
* AT 654 PM CDT...STORM SPOTTERS OBSERVED AND NATIONAL WEATHER
SERVICE DOPPLER RADAR INDICATED A TORNADO. THE DANGEROUS STORM
WAS LOCATED NEAR CAMPBELL...OR 16 MILES SOUTHEAST OF WAHPETON.
RADAR SHOWED THE TORNADO WAS MOVING TO THE EAST AT 35 MPH.
* THE TORNADIC STORM WILL BE NEAR...
NASHUA AROUND 705 PM CDT.
WESTERN AND NORCROSS AROUND 710 PM CDT.
WENDELL AROUND 720 PM CDT.
ELBOW LAKE AND DALTON AROUND 730 PM CDT.
THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE TORNADIC STORM
INCLUDE BARRETT...ERDAHL AND HOFFMAN.
FOR MOTORISTS ON INTERSTATE 94...THE TORNADIC STORM WILL BE
BETWEEN...MILE MARKER 63 AROUND 725 PM CDT...AND MILE MARKER 80
AROUND 745 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.
TO REPEAT...A TORNADO HAS BEEN OBSERVED. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF YOU ARE IN A MOBILE HOME...A VEHICLE...OR OUTDOORS...MOVE
TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING
DEBRIS.
&&
LAT...LON 4587 9625 4602 9627 4602 9655 4622 9656
4619 9569 4610 9571 4610 9575 4594 9576
4593 9575 4582 9577
TIME...MOT...LOC 2358Z 274DEG 32KT 4608 9636
$$
HOPKINS2 follow-up statements
909
WWUS53 KFGF 080017
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
717 PM CDT SAT AUG 7 2010
MNC051-111-167-080100-
/O.CON.KFGF.TO.W.0104.000000T0000Z-100808T0100Z/
WILKIN MN-GRANT MN-OTTER TAIL MN-
717 PM CDT SAT AUG 7 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN OTTER TAIL...
GRANT AND SOUTHEASTERN WILKIN COUNTIES IN WEST CENTRAL MINNESOTA
UNTIL 800 PM CDT...
AT 713 PM CDT...STORM SPOTTERS OBSERVED AND NATIONAL WEATHER SERVICE
DOPPLER RADAR INDICATED A TORNADO. THE DANGEROUS STORM WAS LOCATED 4
MILES NORTHWEST OF WENDELL...OR 16 MILES SOUTH OF FERGUS FALLS...
MOVING TO THE EAST AT 35 MPH.
THE TORNADIC STORM WILL BE NEAR...
ELBOW LAKE AND DALTON AROUND 730 PM CDT.
BARRETT AROUND 735 PM CDT.
ERDAHL AND ASHBY AROUND 740 PM CDT.
HOFFMAN AROUND 745 PM CDT.
FOR MOTORISTS ON INTERSTATE 94...THE TORNADIC STORM WILL BE
BETWEEN...MILE MARKER 72 AROUND 735 PM CDT...AND MILE MARKER 80
AROUND 745 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4587 9625 4602 9627 4602 9640 4622 9641
4619 9569 4610 9571 4610 9575 4594 9576
4593 9575 4582 9577
TIME...MOT...LOC 0017Z 274DEG 32KT 4607 9612
$$
HOPKINS705
WWUS53 KFGF 080040
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
740 PM CDT SAT AUG 7 2010
MNC167-080050-
/O.CAN.KFGF.TO.W.0104.000000T0000Z-100808T0100Z/
WILKIN MN-
740 PM CDT SAT AUG 7 2010
...THE TORNADO WARNING FOR SOUTHEASTERN WILKIN COUNTY IN WEST CENTRAL
MINNESOTA IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4587 9621 4621 9622 4619 9569 4610 9571
4610 9575 4594 9576 4593 9575 4582 9577
TIME...MOT...LOC 0040Z 274DEG 32KT 4605 9583
$$
MNC051-111-080100-
/O.CON.KFGF.TO.W.0104.000000T0000Z-100808T0100Z/
GRANT MN-OTTER TAIL MN-
740 PM CDT SAT AUG 7 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN OTTER TAIL
AND GRANT COUNTIES IN WEST CENTRAL MINNESOTA UNTIL 800 PM CDT...
AT 737 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTHWEST
OF ASHBY...OR 18 MILES SOUTHEAST OF FERGUS FALLS...MOVING TO THE EAST
AT 35 MPH.
THE TORNADIC STORM WILL BE NEAR...
HOFFMAN AROUND 745 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4587 9621 4621 9622 4619 9569 4610 9571
4610 9575 4594 9576 4593 9575 4582 9577
TIME...MOT...LOC 0040Z 274DEG 32KT 4605 9583
$$
HOPKINSThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 4:13 AM CDT | Flash Flood Watch | FGF | Becker, Grant, Hubbard, Otter Tail, Wadena | 20 hr |
| Aug 7, 6:03 PM CDT | Tornado Warning | FGF | Grant, Otter Tail, Wilkin | 57 min |
| Aug 7, 6:27 PM CDT | Tornado Warning | FGF | Otter Tail, Wilkin | 63 min |
Nearby
Tornado Warnings in Minnesota, 2010Every tornado warning in 2010Tornadoes in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.