Alert archive / Minnesota / Tornado Warnings in 2010

Tornado Warning 37, NWS Twin Cities, MN

June 25, 20104 counties in Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 25, 2010, 6:08 PM CDT for 4 counties in Minnesota. It was in force for 52 min. 13 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 25, 2010, 6:08 PM CDT (23:08 UTC)
Expired: Jun 25, 2010, 7:00 PM CDT
In force: 52 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

Counties Blue Earth County, MN, Brown County, MN, Nicollet County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 77 km from the middle of the area, began a volume at 23:08 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 25, 6:15 PM CDT	TORNADO	4 E Lafayette, MN	RAIN WRAPPED TORNADO
Jun 25, 6:20 PM CDT	HAIL 2.75	3 Se St George, MN
Jun 25, 6:27 PM CDT	HAIL 1.75	1 Nnw New Ulm, MN	GOLF BALL AND HALF DOLLAR SIZE HAIL
Jun 25, 6:30 PM CDT	TSTM WND DMG	Courtland, MN	DAIRY BARN DOWN JUST OUTSIDE OF COURTLAND. TREES AND POWER LINES DOWN IN COURTLAND.
Jun 25, 6:30 PM CDT	HAIL 1.75	2 Ne New Ulm, MN	HWY 15 BETWEEN NEW ULM AND KLOSSNER
Jun 25, 6:30 PM CDT	TORNADO	W Courtland, MN	AN NWS STORM SURVEY TEAM DETERMINED AN EF-2 TORNADO OCCURRED WITH A PATH LENGTH OF APPROXIMATELY FIVE MILES. DAMAGE WAS DONE TO MULTIPLE FARMSTEADS INCLUDING THE COMPLETE DESTRUCTION OF ONE BARN...AS WELL AS NUMEROUS UPROOTED LARGE TREES.
Jun 25, 6:32 PM CDT	HAIL 2.75	3 Se St George, MN
Jun 25, 6:33 PM CDT	TSTM WND DMG	1 N New Ulm, MN	STREET LIGHT POLE BENT OVER VIA STRONG WINDS
Jun 25, 6:35 PM CDT	TSTM WND GST 71	New Ulm, MN
Jun 25, 6:36 PM CDT	TSTM WND DMG	Courtland, MN	TREES AND POWER LINES DOWN
Jun 25, 6:47 PM CDT	TSTM WND GST 70	Courtland, MN	SEVERAL TREES LYING DOWN IN THE ROADS IN CITY OF COURTLAND.
Jun 25, 6:55 PM CDT	TSTM WND DMG	8 W New Ulm, MN	BARN LOST ROOF, TWO SHEDS DOWN, POWER LINES DOWN NEAR ESSIG
Jun 25, 6:58 PM CDT	TSTM WND GST 58	New Ulm, MN	MEASURED ON AIRPORT GROUNDS

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 25, 3:35 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.1 hours before the alert went out and 76 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: 38 J/kg
Mixed-layer CIN: -225 J/kg
Mixed-layer LCL: 1153 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 119 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.

727 
WFUS53 KMPX 252308
TORMPX
MNC013-015-103-143-260000-
/O.NEW.KMPX.TO.W.0037.100625T2308Z-100626T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
608 PM CDT FRI JUN 25 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME SOUTH CENTRAL SIBLEY COUNTY IN CENTRAL MINNESOTA...
  EAST CENTRAL BROWN COUNTY IN SOUTH CENTRAL MINNESOTA...
  NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
  EXTREME NORTHWESTERN BLUE EARTH COUNTY IN SOUTH CENTRAL
  MINNESOTA...

* UNTIL 700 PM CDT

* AT 604 PM CDT...RADAR WAS TRACKING A SEVERE STORM WITH STRONG
  ROTATION. THE MOST DANGEROUS PART OF THE STORM WAS 5 MILES SOUTH OF
  ST GEORGE...AND MOVING EAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  NEW ULM...
  KLOSSNER...
  LAFAYETTE...
  COURTLAND...
  NICOLLET...
  NORSELAND...
  NEW SWEDEN...
  RUSH RIVER...

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 MIDNIGHT CDT SATURDAY MORNING
FOR SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN.

&&

LAT...LON 4448 9401 4422 9402 4425 9435 4429 9464
      4448 9459
TIME...MOT...LOC 2308Z 273DEG 30KT 4437 9448

$$

1 follow-up statement

469 
WWUS53 KMPX 252320
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
620 PM CDT FRI JUN 25 2010

MNC013-015-103-143-260000-
/O.CON.KMPX.TO.W.0037.000000T0000Z-100626T0000Z/
SIBLEY MN-BROWN MN-NICOLLET MN-BLUE EARTH MN-
620 PM CDT FRI JUN 25 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR BLUE EARTH...NICOLLET...
EAST CENTRAL BROWN AND EXTREME SOUTHWESTERN SIBLEY COUNTIES UNTIL 700
PM CDT...

AT 618 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR KLOSSNER...OR 6 MILES NORTHEAST OF NEW
ULM...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  MANKATO...NICOLLET...VERNON CENTER...AMBOY...NORSELAND...GOOD
  THUNDER...MAPLETON...EAGLE LAKE...ST CLAIR...PEMBERTON...NEW
  SWEDEN...LAKE CRYSTAL...RUSH RIVER...SKYLINE AND MADISON LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 4448 9401 4422 9402 4425 9435 4429 9464
      4448 9459
TIME...MOT...LOC 2321Z 273DEG 30KT 4436 9433

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 6:07 AM CDT	Special Weather Statement	MPX	Douglas, Morrison, Todd	68 min
Jun 25, 6:45 AM CDT	Special Weather Statement	MPX	Douglas, Pope, Stevens	60 min
Jun 25, 8:39 AM CDT	Special Weather Statement	MPX	Stevens	51 min
Jun 25, 9:25 AM CDT	Special Weather Statement	MPX	Chippewa, Swift	65 min
Jun 25, 9:36 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift	39 min
Jun 25, 11:00 AM CDT	Special Weather Statement	MPX	Redwood, Renville	60 min
Jun 25, 11:04 AM CDT	Special Weather Statement	MPX	Kanabec	56 min
Jun 25, 11:07 AM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Sibley	53 min
Jun 25, 12:35 PM CDT	Special Weather Statement	MPX	Le Sueur, Nicollet	55 min
Jun 25, 3:12 PM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi, Lac qui Parle, Meeker, Pope, Redwood and 4 more	63 min
Jun 25, 3:31 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Pope, Stearns, Swift	59 min
Jun 25, 3:35 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle, Renville, Yellow Medicine	55 min
Jun 25, 3:51 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift	54 min
Jun 25, 4:05 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne, Stearns, Wright	55 min
Jun 25, 4:33 PM CDT	Tornado Warning	MPX	Chippewa, Kandiyohi	57 min
Jun 25, 4:41 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	49 min
Jun 25, 4:56 PM CDT	Tornado Warning	MPX	Chippewa, Renville	49 min
Jun 25, 5:00 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Hennepin, Isanti, Sherburne, Stearns and 1 more	60 min
Jun 25, 5:03 PM CDT	Tornado Warning	MPX	Brown, Nicollet, Redwood, Renville, Sibley, Yellow Medicine	27 min
Jun 25, 5:04 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	33 min
Jun 25, 5:08 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin, Ramsey, Wright	67 min
Jun 25, 5:21 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, McLeod, Meeker, Renville, Sibley	54 min
Jun 25, 5:31 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Renville, Stearns, Swift	59 min
Jun 25, 5:33 PM CDT	Tornado Warning	MPX	Brown, Nicollet, Redwood, Renville, Sibley	42 min
Jun 25, 5:37 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Redwood, Renville, Sibley, Yellow Medicine	53 min
Jun 25, 5:51 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Dakota, Hennepin, Ramsey, Washington	54 min
Jun 25, 5:59 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin, Sherburne, Wright	42 min
Jun 25, 6:05 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet, Watonwan	55 min
Jun 25, 6:12 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Wright	63 min
Jun 25, 6:24 PM CDT	Flash Flood Warning	MPX	Anoka, Hennepin, Ramsey, Washington	3 hr
Jun 25, 6:28 PM CDT	Tornado Warning	MPX	Blue Earth, Brown, Nicollet	47 min
Jun 25, 6:30 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Dakota, Hennepin, Ramsey	60 min
Jun 25, 6:34 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	56 min
Jun 25, 6:51 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Hennepin	24 min
Jun 25, 6:52 PM CDT	Tornado Warning	MPX	Blue Earth, Le Sueur, Nicollet	53 min
Jun 25, 6:54 PM CDT	Tornado Warning	MPX	Brown, Redwood	51 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.