Alert archive / Minnesota / Tornado Warnings in 2010

Tornado Warning 8, NWS Twin Cities, MN

June 17, 2010Douglas County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 17, 2010, 3:45 PM CDT for Douglas County, Minnesota. It was in force for 30 min. 4 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: Jun 17, 2010, 3:45 PM CDT (20:45 UTC)
Expired: Jun 17, 2010, 4:15 PM CDT
In force: 30 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

County Douglas County, MN

The radar

The Minneapolis radar (KMPX), 200 km from the middle of the area, began a volume at 20:47 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
Jun 17, 3:45 PM CDT	TORNADO 4	4 Sw Parkers Prairie, MN	* 1 FATAL, 5 INJ * THIS TORNADO CROSSED FROM DOUGLAS COUNTY NORTHWARD INTO OTTER TAIL COUNTY AND PRODUCED AN ADDITIONAL 38 MILES OF CONTINUOUS DAMAGE PATH... ENDING ABOUT 10 MILES NORTH OF BLUFFTON BY 445 PM CDT. THE TORNADO DESTROYED NUMEROUS HOMES AND FA
Jun 17, 3:45 PM CDT	HAIL 4.25	Millerville, MN
Jun 17, 3:45 PM CDT	TORNADO	3 N Leaf Valley, MN
Jun 17, 3:58 PM CDT	TORNADO	3 N Leaf Valley, MN	DAMAGE TO FARM AND SILOS AT JUNCTION OF MUMS AND SWAMP ROADS.

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
Jun 17, 1:54 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 198 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: 2 J/kg
Mixed-layer CIN: -317 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

900 
WFUS53 KMPX 172045
TORMPX
MNC041-172115-
/O.NEW.KMPX.TO.W.0008.100617T2045Z-100617T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
345 PM CDT THU JUN 17 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 415 PM CDT

* AT 345 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
  TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 4 MILES NORTH    
  OF BRANDON...AND MOVING NORTHEAST AT 40 MPH. LARGE HAIL UP TO THE  
  SIZE OF TENNIS BALLS IS POSSIBLE WITH THIS TORNADIC STORM.

* LOCATIONS IN THE WARNING INCLUDE...
  MILLERVILLE...
  MILTONA...
  ROSE CITY...
  LEAF VALLEY...
  LAKE MILTONA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT THURSDAY EVENING
FOR SOUTHERN MINNESOTA.

&&

LAT...LON 4611 9557 4612 9520 4611 9515 4603 9515
      4590 9554 4599 9566 4611 9568 4612 9558
TIME...MOT...LOC 2045Z 216DEG 36KT 4603 9556

$$

TRH

1 follow-up statement

961 
WWUS53 KMPX 172103
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
403 PM CDT THU JUN 17 2010

MNC041-172115-
/O.CON.KMPX.TO.W.0008.000000T0000Z-100617T2115Z/
DOUGLAS MN-
403 PM CDT THU JUN 17 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN DOUGLAS COUNTY
UNTIL 415 PM CDT...

AT 403 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THE INITIAL 
STORM WHICH PROMPTED THE WARNING HAD MOVED INTO OTTER TAIL COUNTY. 
HOWEVER...A SEVERE THUNDERSTORM STILL CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED NEAR BRANDON...OR 13 MILES NORTHWEST OF 
ALEXANDRIA...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  MILLERVILLE...MILTONA...ROSE CITY AND LEAF VALLEY.

LAT...LON 4611 9557 4612 9520 4611 9515 4603 9515
      4594 9543 4594 9559 4599 9566 4611 9568
      4612 9558
TIME...MOT...LOC 2103Z 227DEG 43KT 4602 9556

$$

TRH

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 7:50 AM CDT	Special Weather Statement	MPX	Stevens	25 min
Jun 17, 8:11 AM CDT	Special Weather Statement	MPX	Douglas	49 min
Jun 17, 9:15 AM CDT	Special Weather Statement	MPX	Douglas, Todd	90 min
Jun 17, 10:44 AM CDT	Special Weather Statement	MPX	Todd	61 min
Jun 17, 2:20 PM CDT	Special Weather Statement	MPX	Douglas, Pope, Swift	55 min
Jun 17, 2:27 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stevens	63 min
Jun 17, 2:51 PM CDT	Tornado Warning	MPX	Douglas	39 min
Jun 17, 3:25 PM CDT	Tornado Warning	MPX	Douglas	20 min
Jun 17, 3:43 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Renville, Sibley	47 min
Jun 17, 3:50 PM CDT	Tornado Warning	MPX	Brown, Nicollet, Renville, Sibley	40 min
Jun 17, 3:55 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Watonwan	50 min
Jun 17, 3:59 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Renville	61 min
Jun 17, 4:08 PM CDT	Severe Thunderstorm Warning	MPX	Martin, Watonwan	37 min
Jun 17, 4:08 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	52 min
Jun 17, 4:21 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville, Sibley	54 min
Jun 17, 4:26 PM CDT	Severe Thunderstorm Warning	MPX	Nicollet, Sibley	34 min
Jun 17, 4:31 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	59 min
Jun 17, 4:31 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	59 min
Jun 17, 4:40 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Watonwan	50 min
Jun 17, 4:43 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Stearns, Wright	47 min
Jun 17, 5:02 PM CDT	Tornado Warning	MPX	Meeker, Stearns, Wright	43 min
Jun 17, 5:05 PM CDT	Tornado Warning	MPX	Faribault	25 min
Jun 17, 5:07 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod, Wright	53 min
Jun 17, 5:20 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs, Sherburne	55 min
Jun 17, 5:25 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Rice, Waseca	65 min
Jun 17, 5:28 PM CDT	Tornado Warning	MPX	Carver, McLeod, Wright	47 min
Jun 17, 5:28 PM CDT	Tornado Warning	MPX	Faribault, Freeborn	32 min
Jun 17, 5:32 PM CDT	Tornado Warning	MPX	Blue Earth, Le Sueur, Rice, Waseca	28 min
Jun 17, 5:35 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	25 min
Jun 17, 5:39 PM CDT	Tornado Warning	MPX	Benton, Sherburne	51 min
Jun 17, 5:44 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Sibley	31 min
Jun 17, 5:56 PM CDT	Tornado Warning	MPX	Faribault, Freeborn	49 min
Jun 17, 5:58 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	17 min
Jun 17, 6:00 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet, Watonwan	60 min
Jun 17, 6:03 PM CDT	Tornado Warning	MPX	Sherburne, Wright	42 min
Jun 17, 6:07 PM CDT	Tornado Warning	MPX	Benton, Mille Lacs	53 min
Jun 17, 6:09 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville	24 min
Jun 17, 6:15 PM CDT	Special Weather Statement	MPX	Todd	30 min
Jun 17, 6:16 PM CDT	Tornado Warning	MPX	Blue Earth, Le Sueur, Nicollet	29 min
Jun 17, 6:28 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Waseca	62 min
Jun 17, 6:35 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Isanti, Sherburne, Wright	55 min
Jun 17, 6:36 PM CDT	Tornado Warning	MPX	Blue Earth, Faribault, Waseca	39 min
Jun 17, 6:42 PM CDT	Tornado Warning	MPX	Blue Earth, Nicollet	33 min
Jun 17, 6:44 PM CDT	Tornado Warning	MPX	Freeborn, Steele	46 min
Jun 17, 6:49 PM CDT	Tornado Warning	MPX	Isanti, Kanabec, Mille Lacs, Sherburne	41 min
Jun 17, 6:56 PM CDT	Tornado Warning	MPX	Sherburne	34 min

Nearby

Tornado Warnings in Minnesota, 2010 Every tornado warning in 2010 Tornadoes 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.