Alert archive / Minnesota / Tornado Warnings in 2008

Tornado Warning 34, NWS Grand Forks, ND

July 10, 2008Grant County, Otter Tail County, Wilkin County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 10, 2008, 9:10 AM CDT for Grant County, Otter Tail County, Wilkin County, Minnesota. It was in force for 65 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 10, 2008, 9:10 AM CDT (14:10 UTC)
Expired: Jul 10, 2008, 10:15 AM CDT
In force: 65 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), 189 km from the middle of the area, began a volume at 14:12 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 10, 9:15 AM CDT	TSTM WND DMG	7 W Ashby, MN	EIGHT TO TEN INCH BRANCHES DOWN.
Jul 10, 9:30 AM CDT	TSTM WND DMG	Wendell, MN	LARGE TREE LIMBS DOWN THROUGHOUT NORTHWEST PORTION OF GRANT COUNTY.

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 10, 7:58 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 2.2 hours before the alert went out and 214 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1763 J/kg
Mixed-layer CIN: -188 J/kg
Mixed-layer LCL: 1270 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 209 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KFGF 101410
TORFGF
MNC051-111-167-101515-
/O.NEW.KFGF.TO.W.0034.080710T1410Z-080710T1515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
910 AM CDT THU JUL 10 2008

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 1015 AM CDT

* AT 905 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES
  NORTHWEST OF WESTERN...OR 11 MILES SOUTHWEST OF FERGUS FALLS...
  MOVING TO THE SOUTHEAST AT 33 MPH.

* THE TORNADO WILL BE NEAR...
  WENDELL AT 925 AM CDT...
  ELBOW LAKE AT 935 AM CDT...
  8 MILES SOUTHWEST OF ASHBY AT 940 AM CDT...
  ERDAHL AT 945 AM CDT...

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH
DAKOTA.

LAT...LON 4576 9627 4601 9627 4601 9640 4610 9643
      4631 9619 4610 9575 4594 9576 4579 9574
      4576 9574 4575 9576 4575 9625
TIME...MOT...LOC 1410Z 308DEG 28KT 4615 9618

$$

PR/BH

3 follow-up statements

000 
WWUS53 KFGF 101428
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
928 AM CDT THU JUL 10 2008

MNC051-111-167-101515-
/O.CON.KFGF.TO.W.0034.000000T0000Z-080710T1515Z/
WILKIN MN-GRANT MN-OTTER TAIL MN-
927 AM CDT THU JUL 10 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT FOR GRANT...
SOUTHWESTERN OTTER TAIL AND SOUTHEASTERN WILKIN COUNTIES...

AT 923 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
2 MILES NORTH OF ELBOW LAKE...OR 18 MILES SOUTH OF FERGUS 
FALLS...MOVING TO THE SOUTHEAST AT 32 MPH. THIS STORM ALSO HAS A 
HISTORY OF CAUSING DAMAGE TO TREES AND THE POTENTIAL TO PRODUCE ONE 
INCH HAIL.

* THE TORNADO WILL BE NEAR...
  ERDAHL BY 935 AM CDT...
  BARRETT AND ERDAHL BY 940 AM CDT...
  HOFFMAN BY 955 AM CDT...

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH
DAKOTA.

LAT...LON 4576 9627 4601 9627 4601 9637 4602 9637
      4623 9603 4610 9575 4594 9576 4580 9575
      4579 9574 4575 9576 4575 9625
TIME...MOT...LOC 1427Z 308DEG 28KT 4600 9595

$$

PR/BH

000 
WWUS53 KFGF 101450
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
950 AM CDT THU JUL 10 2008

101455-
/O.CAN.KFGF.TO.W.0034.000000T0000Z-080710T1515Z/

945 AM CDT THU JUL 10 2008

...THE TORNADO WARNING FOR SOUTHEASTERN WILKIN COUNTY IS CANCELLED...

AT 945 AM CDT...THE STORM HAS MOVED INTO GRANT COUNTY THEREFORE THE 
WARNING IS CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH
DAKOTA.

LAT...LON 4576 9627 4602 9626 4610 9575 4594 9576
      4580 9575 4579 9574 4575 9576 4576 9604
      4575 9605 4575 9625
TIME...MOT...LOC 1445Z 312DEG 27KT 4591 9589

$$

MNC051-101515-
/O.CON.KFGF.TO.W.0034.000000T0000Z-080710T1515Z/
GRANT MN-
945 AM CDT THU JUL 10 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT FOR GRANT
COUNTY...

AT 942 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
NEAR BARRETT...OR 26 MILES SOUTH OF FERGUS FALLS...MOVING TO THE 
SOUTHEAST AT 31 MPH. DOPPLER WEATHER RADAR ALSO INDICATES A STORM IN 
TRAVERSE COUNTY APPROACHING GRANT COUNTY AND WILL BE MONITORED FOR 
ISSUANCE OF ANY ADDITIONAL STATEMENTS.

* THE TORNADO WILL BE NEAR...
  HOFFMAN BY 1000 AM CDT...

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH
DAKOTA.

LAT...LON 4576 9627 4602 9626 4610 9575 4594 9576
      4580 9575 4579 9574 4575 9576 4576 9604
      4575 9605 4575 9625
TIME...MOT...LOC 1445Z 312DEG 27KT 4591 9589

$$

PR/BH

000 
WWUS53 KFGF 101503
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1003 AM CDT THU JUL 10 2008

MNC051-101513-
/O.CAN.KFGF.TO.W.0034.000000T0000Z-080710T1515Z/
GRANT MN-
1003 AM CDT THU JUL 10 2008

...THE TORNADO WARNING FOR GRANT COUNTY IS CANCELLED...

AT 1003 AM CDT...TORNADO MOVED OUT OF THE WARNED AREA IN GRANT 
COUNTY SO THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH
DAKOTA.

LAT...LON 4576 9627 4602 9626 4610 9575 4594 9576
      4580 9575 4579 9574 4575 9576 4576 9604
      4575 9605 4575 9625
TIME...MOT...LOC 1503Z 312DEG 27KT 4582 9575

$$

PR/BH

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 6:59 AM CDT	Severe Thunderstorm Warning	FGF	Clay, Wilkin	61 min
Jul 10, 7:10 AM CDT	Severe Thunderstorm Warning	FGF	Wilkin	50 min
Jul 10, 7:57 AM CDT	Severe Thunderstorm Warning	FGF	Grant, Wilkin	47 min
Jul 10, 8:03 AM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wilkin	57 min
Jul 10, 8:11 AM CDT	Tornado Warning	FGF	Wilkin	34 min
Jul 10, 8:31 AM CDT	Severe Thunderstorm Warning	FGF	Otter Tail, Wilkin	59 min
Jul 10, 8:41 AM CDT	Tornado Warning	FGF	Grant, Wilkin	34 min
Jul 10, 9:15 AM CDT	Severe Thunderstorm Warning	FGF	Wilkin	30 min
Jul 10, 10:23 AM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	35 min

Nearby

Tornado Warnings in Minnesota, 2008 Every tornado warning in 2008 Tornadoes 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.