Alert archive / Minnesota / Tornado Warnings in 2008
Tornado Warning 43, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 11, 2008, 4:23 PM CDT for Otter Tail County, Minnesota. It was in force for 52 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
- Jul 11, 2008, 4:23 PM CDT (21:23 UTC)
- Expired
- Jul 11, 2008, 5:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
County Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 204 km from the middle of the area, began a volume at 21:26 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 |
|---|---|---|---|
| Jul 11, 4:43 PM CDT | TORNADO | 10 Ssw Wadena, MN | |
| Jul 11, 4:50 PM CDT | HAIL 0.75 | 7 E Henning, MN |
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 |
|---|---|---|---|
| Jul 11, 2:26 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.4 hours before the alert went out and 210 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
- 890 J/kg
- Mixed-layer CIN
- -362 J/kg
- Mixed-layer LCL
- 1222 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 393 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFGF 112123 TORFGF MNC111-112215- /O.NEW.KFGF.TO.W.0043.080711T2123Z-080711T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 423 PM CDT FRI JUL 11 2008 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... EAST CENTRAL OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 515 PM CDT * AT 416 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTHEAST OF VINING...OR 28 MILES EAST OF FERGUS FALLS...MOVING TO THE EAST AT 35 MPH. * THE TORNADO WILL BE NEAR... BETWEEN HENNING AND ALMORA AT 430 PM CDT... WRIGHTSTOWN AT 445 PM CDT... IF A BASEMENT IS NOT AVAILABLE THEN SEEK SHELTER IN AN INNERMOST ROOM...SUCH AS A CLOSET...ON THE LOWEST FLOOR. AVOID WINDOWS AND PROTECT YOURSELF WITH BLANKETS...PILLOWS...OR CUSHIONS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4641 9518 4617 9517 4619 9557 4631 9556 TIME...MOT...LOC 2122Z 266DEG 31KT 4624 9542 $$ GUST/PR
3 follow-up statements
000 WWUS53 KFGF 112133 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 433 PM CDT FRI JUL 11 2008 MNC111-112215- /O.CON.KFGF.TO.W.0043.000000T0000Z-080711T2215Z/ OTTER TAIL MN- 433 PM CDT FRI JUL 11 2008 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EAST CENTRAL OTTER TAIL COUNTY... AT 430 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED 2 MILES EAST OF HENNING...OR 33 MILES EAST OF FERGUS FALLS...MOVING TO THE EAST AT 45 MPH. * THE TORNADO WILL BE ABOUT... SOUTH OF DEER CREEK BY 438 PM CDT... 7 MILES NORTH OF WRIGHTSTOWN BY 445 PM CDT... IF A BASEMENT IS NOT AVAILABLE THEN SEEK SHELTER IN AN INNERMOST ROOM...SUCH AS A CLOSET...ON THE LOWEST FLOOR. AVOID WINDOWS AND PROTECT YOURSELF WITH BLANKETS...PILLOWS...OR CUSHIONS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4619 9557 4631 9556 4641 9518 4617 9517 TIME...MOT...LOC 2133Z 248DEG 39KT 4634 9534 $$ GUST/PR
000 WWUS53 KFGF 112149 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 449 PM CDT FRI JUL 11 2008 MNC111-112215- /O.CON.KFGF.TO.W.0043.000000T0000Z-080711T2215Z/ OTTER TAIL MN- 449 PM CDT FRI JUL 11 2008 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EAST CENTRAL OTTER TAIL COUNTY... AT 443 PM CDT...WEATHER SPOTTERS REPORTED A TORNADO. THE TORNADO WAS LOCATED NEAR WRIGHTSTOWN...OR 41 MILES EAST OF FERGUS FALLS...MOVING TO THE NORTHEAST AT 32 MPH. IF A BASEMENT IS NOT AVAILABLE THEN SEEK SHELTER IN AN INNERMOST ROOM...SUCH AS A CLOSET...ON THE LOWEST FLOOR. AVOID WINDOWS AND PROTECT YOURSELF WITH BLANKETS...PILLOWS...OR CUSHIONS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4619 9557 4631 9556 4641 9518 4617 9517 TIME...MOT...LOC 2149Z 246DEG 28KT 4629 9516 $$ GUST
000 WWUS53 KFGF 112210 RRA SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 510 PM CDT FRI JUL 11 2008 MNC111-112220- /O.EXP.KFGF.TO.W.0043.000000T0000Z-080711T2215Z/ OTTER TAIL MN- 510 PM CDT FRI JUL 11 2008 ...THE TORNADO WARNING FOR EAST CENTRAL OTTER TAIL COUNTY WILL EXPIRE AT 515 PM CDT... AT 510 PM CDT...THE TORNADO HAS MOVED OUT OF THE WARNED AREA IN EAST CENTRAL OTTER TAIL COUNTY. SO THE WARNING WILL BE ALLOWED TO EXPIRE AT 515 PM CDT. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4619 9557 4631 9556 4641 9518 4617 9517 TIME...MOT...LOC 2210Z 246DEG 28KT 4636 9494 $$ GUST/PR
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 10:23 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wilkin | 67 min |
| Jul 10, 11:18 PM CDT | Severe Thunderstorm Warning | FGF | Grant, Otter Tail | 57 min |
| Jul 11, 5:01 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Lake of the Woods, Roseau | 59 min |
| Jul 11, 6:40 AM CDT | Severe Thunderstorm Warning | FGF | Lake of the Woods, Roseau | 63 min |
| Jul 11, 8:37 AM CDT | Severe Thunderstorm Warning | FGF | Lake of the Woods | 38 min |
| Jul 11, 9:10 AM CDT | Severe Thunderstorm Warning | FGF | Marshall, Pennington, Polk | 65 min |
| Jul 11, 2:50 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen, Norman | 55 min |
| Jul 11, 3:08 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen, Norman, Polk | 67 min |
| Jul 11, 3:22 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall, Roseau | 53 min |
| Jul 11, 3:31 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Otter Tail | 59 min |
| Jul 11, 3:34 PM CDT | Tornado Warning | FGF | Clearwater, Mahnomen | 41 min |
| Jul 11, 3:37 PM CDT | Tornado Warning | FGF | Clearwater, Polk | 38 min |
| Jul 11, 3:41 PM CDT | Tornado Warning | FGF | Marshall, Roseau | 64 min |
| Jul 11, 3:45 PM CDT | Tornado Warning | FGF | Beltrami, Clearwater, Marshall, Pennington, Polk, Red Lake | 60 min |
| Jul 11, 3:46 PM CDT | Tornado Warning | FGF | Becker, Otter Tail | 59 min |
| Jul 11, 4:13 PM CDT | Tornado Warning | FGF | Becker | 40 min |
| Jul 11, 4:14 PM CDT | Tornado Warning | FGF | Clearwater, Mahnomen, Polk | 61 min |
| Jul 11, 4:16 PM CDT | Tornado Warning | FGF | Beltrami, Lake of the Woods, Marshall, Roseau | 59 min |
| Jul 11, 4:40 PM CDT | Tornado Warning | FGF | Clearwater, Polk | 44 min |
| Jul 11, 4:40 PM CDT | Tornado Warning | FGF | Otter Tail, Wadena | 41 min |
| Jul 11, 4:44 PM CDT | Tornado Warning | FGF | Lake of the Woods, Roseau | 61 min |
| Jul 11, 5:00 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard, Wadena | 30 min |
| Jul 11, 5:03 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Lake of the Woods, Marshall, Pennington | 57 min |
| Jul 11, 5:17 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard, Otter Tail, Wadena | 31 min |
| Jul 11, 6:26 PM CDT | Tornado Warning | FGF | Lake of the Woods | 21 min |
Nearby
Tornado Warnings in Minnesota, 2008Every tornado warning in 2008Tornadoes in 2008
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.