Alert archive / Minnesota / Tornado Warnings in 2010

Tornado Warning 22, NWS Twin Cities, MN

June 17, 2010Freeborn County, Steele County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 17, 2010, 6:44 PM CDT for Freeborn County, Steele County, Minnesota. It was in force for 46 min. 12 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, 6:44 PM CDT (23:44 UTC)
Expired
Jun 17, 2010, 7:30 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Freeborn County, MN, Steele County, MN

The radar

The Minneapolis radar (KMPX), 121 km from the middle of the area, began a volume at 23:47 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

TimeReportWhereRemark
Jun 17, 6:48 PM CDTTORNADOAlden, MNEAST OF ALDEN AND 1 MI SOUTH OF ARMSTRONG
Jun 17, 6:55 PM CDTTORNADO4 W Albert Lea, MNNWS STORM SURVEY TEAM DETERMINED AN EF-1 TORNADO OCCURRED WITH A PATH LENGTH OF APPROXIMATELY ONE MILES. DAMAGE INCLUDED TO SEVERAL GRAIN BINS AND TREES. THIS WAS A SATELLITE TORNADO TO THE EF-4 TORNADO THAT TOUCHED DOWN NEAR MANCHESTER.
Jun 17, 6:55 PM CDTTORNADOConger, MNTIME ESTIMATED HOUSE DAMAGED
Jun 17, 6:56 PM CDTTORNADO6 Wnw Albert Lea, MN
Jun 17, 7:00 PM CDTTSTM WND DMG3 Wsw Manchester, MNONE FOOT DIAMETER TREES FELLED DUE TO REAR FLANK DOWNDRAFT WINDS.
Jun 17, 7:00 PM CDTTSTM WND DMG3 Wsw Manchester, MNONE FOOT DIAMETER TREES FELLED DUE TO REAR FLANK DOWNDRAFT WINDS.
Jun 17, 7:00 PM CDTTSTM WND DMG3 Wsw Manchester, MNSEVERAL TREES KNOCKED OVER. GARAGE DOORS AND SEVERAL EAST-FACING WINDOWS BLOWN OUT. ALL DAMAGE DUE TO REAR FLANK DOWNDRAFT WINDS.
Jun 17, 7:14 PM CDTTORNADOClarks Grove, MN*** 1 INJ *** NWS STORM SURVEY TEAM DETERMINED AN EF-3 TORNADO OCCURRED WITH A PATH LENGTH OF APPROXIMATELY 18 MILES. THE PATH TOOK THE TORNADO JUST WEST OF INTERSTATE 35...NEAR THE COMMUNITY OF ELLENDALE. DAMAGE INCLUDED SIGNIFICANT STRUCTURAL AND TREE DAMAGE
Jun 17, 7:15 PM CDTTORNADO1 E Clarks Grove, MNNWS STORM SURVEY TEAM DETERMINED AN EF-1 TORNADO OCCURRED WITH A PATH LENGTH OF APPROXIMATELY 14 MILES. THE TRACK LED TO THE TORNADO CROSSING INTERSTATE 35 ALMOST IMMEDIATELY AND PASSING JUST WEST OF GENEVA. DAMAGE TO MULTIPLE OUTBUILDINGS AND NUMEROUS LARGE T
Jun 17, 7:18 PM CDTTORNADO3 S Alden, MN
Jun 17, 7:20 PM CDTTORNADO4 S Albert Lea, MN
Jun 17, 7:35 PM CDTTORNADO2 S Ellendale, 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.

IssuedProductOfficeLasted
Jun 17, 1:54 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.7 hours before the alert went out and 122 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2010-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2010-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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.

097 
WFUS53 KMPX 172344
TORMPX
MNC047-147-180030-
/O.NEW.KMPX.TO.W.0022.100617T2344Z-100618T0030Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN STEELE COUNTY IN SOUTH CENTRAL MINNESOTA...
  FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 730 PM CDT

* AT 642 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 2 MILES
  EAST OF ALDEN. RADAR SHOWED THE TORNADIC STORM MOVING NORTHEAST AT
  30 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  ALBERT LEA...
  HAYWARD...
  FREEBORN...
  MANCHESTER...
  GLENVILLE...
  MYRTLE...
  CLARKS GROVE...
  HOLLANDALE...
  GENEVA...
  ELLENDALE...
  STEELE CENTER...
  BIXBY...

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. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
100 AM CDT FRIDAY MORNING FOR NORTHWESTERN WISCONSIN.

&&

LAT...LON 4353 9363 4383 9363 4386 9357 4385 9341
      4392 9341 4406 9306 4352 9306
TIME...MOT...LOC 2344Z 233DEG 28KT 4367 9351

$$
2 follow-up statements
257 
WWUS53 KMPX 172354
SVSMPX

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

MNC047-147-180030-
/O.CON.KMPX.TO.W.0022.000000T0000Z-100618T0030Z/
STEELE MN-FREEBORN MN-
654 PM CDT THU JUN 17 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR FREEBORN AND SOUTHERN
STEELE COUNTIES UNTIL 730 PM CDT...

AT 652 PM CDT...NATIONAL WEATHER SERVICE RADAR AND STORM SPOTTERS
WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO.  THIS TORNADO
WAS LOCATED NEAR CONGER...OR 6 MILES WEST OF ALBERT LEA...MOVING EAST
AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALBERT LEA...HAYWARD...MANCHESTER...GLENVILLE...CLARKS GROVE...
  MYRTLE...ELLENDALE...GENEVA...HOLLANDALE...BIXBY...STEELE CENTER
  AND HARTLAND.

LAT...LON 4353 9363 4383 9363 4386 9357 4385 9341
      4392 9341 4406 9306 4352 9306
TIME...MOT...LOC 2354Z 249DEG 27KT 4367 9347

$$
619 
WWUS53 KMPX 180020
SVSMPX

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

MNC047-147-180030-
/O.CON.KMPX.TO.W.0022.000000T0000Z-100618T0030Z/
STEELE MN-FREEBORN MN-
720 PM CDT THU JUN 17 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR FREEBORN AND SOUTHERN
STEELE COUNTIES UNTIL 730 PM CDT...

AT 714 PM CDT...NATIONAL WEATHER SERVICE RADAR AND STORM SPOTTERS
WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO.  THIS TORNADO
WAS LOCATED NEAR CLARKS GROVE...OR 7 MILES NORTH OF ALBERT LEA...
MOVING NORTHEAST AT 25 MPH.

A SECOND TORNADO WAS LOCATED 3 MILES SOUTH OF ALDEN...MOVING 
NORTHEAST AT 25 MPH. 

LOCATIONS IMPACTED INCLUDE... ALBERT 
LEA...HOLLANDALE...GENEVA...ELLENDALE...STEELE CENTER AND BIXBY.

LAT...LON 4353 9363 4383 9363 4386 9357 4385 9341
      4392 9341 4406 9306 4352 9306
TIME...MOT...LOC 0019Z 232DEG 23KT 4378 9329

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 7:50 AM CDTSpecial Weather StatementMPXStevens25 min
Jun 17, 8:11 AM CDTSpecial Weather StatementMPXDouglas49 min
Jun 17, 9:15 AM CDTSpecial Weather StatementMPXDouglas, Todd90 min
Jun 17, 10:44 AM CDTSpecial Weather StatementMPXTodd61 min
Jun 17, 2:20 PM CDTSpecial Weather StatementMPXDouglas, Pope, Swift55 min
Jun 17, 2:27 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stevens63 min
Jun 17, 2:51 PM CDTTornado WarningMPXDouglas39 min
Jun 17, 3:25 PM CDTTornado WarningMPXDouglas20 min
Jun 17, 3:43 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Renville, Sibley47 min
Jun 17, 3:45 PM CDTTornado WarningMPXDouglas30 min
Jun 17, 3:50 PM CDTTornado WarningMPXBrown, Nicollet, Renville, Sibley40 min
Jun 17, 3:55 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Watonwan50 min
Jun 17, 3:59 PM CDTSevere Thunderstorm WarningMPXMeeker, Renville61 min
Jun 17, 4:08 PM CDTSevere Thunderstorm WarningMPXMartin, Watonwan37 min
Jun 17, 4:08 PM CDTSevere Thunderstorm WarningMPXStearns52 min
Jun 17, 4:21 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville, Sibley54 min
Jun 17, 4:26 PM CDTSevere Thunderstorm WarningMPXNicollet, Sibley34 min
Jun 17, 4:31 PM CDTSevere Thunderstorm WarningMPXFaribault, Martin59 min
Jun 17, 4:31 PM CDTSevere Thunderstorm WarningMPXMorrison, Todd59 min
Jun 17, 4:40 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Watonwan50 min
Jun 17, 4:43 PM CDTSevere Thunderstorm WarningMPXMeeker, Stearns, Wright47 min
Jun 17, 5:02 PM CDTTornado WarningMPXMeeker, Stearns, Wright43 min
Jun 17, 5:05 PM CDTTornado WarningMPXFaribault25 min
Jun 17, 5:07 PM CDTSevere Thunderstorm WarningMPXCarver, Hennepin, McLeod, Wright53 min
Jun 17, 5:20 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Sherburne55 min
Jun 17, 5:25 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Rice, Waseca65 min
Jun 17, 5:28 PM CDTTornado WarningMPXCarver, McLeod, Wright47 min
Jun 17, 5:28 PM CDTTornado WarningMPXFaribault, Freeborn32 min
Jun 17, 5:32 PM CDTTornado WarningMPXBlue Earth, Le Sueur, Rice, Waseca28 min
Jun 17, 5:35 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet25 min
Jun 17, 5:39 PM CDTTornado WarningMPXBenton, Sherburne51 min
Jun 17, 5:44 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Sibley31 min
Jun 17, 5:56 PM CDTTornado WarningMPXFaribault, Freeborn49 min
Jun 17, 5:58 PM CDTSevere Thunderstorm WarningMPXStearns17 min
Jun 17, 6:00 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet, Watonwan60 min
Jun 17, 6:03 PM CDTTornado WarningMPXSherburne, Wright42 min
Jun 17, 6:07 PM CDTTornado WarningMPXBenton, Mille Lacs53 min
Jun 17, 6:09 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville24 min
Jun 17, 6:15 PM CDTSpecial Weather StatementMPXTodd30 min
Jun 17, 6:16 PM CDTTornado WarningMPXBlue Earth, Le Sueur, Nicollet29 min
Jun 17, 6:28 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Waseca62 min
Jun 17, 6:35 PM CDTSevere Thunderstorm WarningMPXAnoka, Isanti, Sherburne, Wright55 min
Jun 17, 6:36 PM CDTTornado WarningMPXBlue Earth, Faribault, Waseca39 min
Jun 17, 6:42 PM CDTTornado WarningMPXBlue Earth, Nicollet33 min
Jun 17, 6:49 PM CDTTornado WarningMPXIsanti, Kanabec, Mille Lacs, Sherburne41 min
Jun 17, 6:56 PM CDTTornado WarningMPXSherburne34 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.