Alert archive / Minnesota / Tornado Warnings in 2010

Tornado Warning 99, NWS Twin Cities, MN

August 13, 2010Blue Earth County, Le Sueur County, Waseca County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Aug 13, 2010, 5:34 PM CDT for Blue Earth County, Le Sueur County, Waseca County, Minnesota. It was in force for 56 min. 1 report 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: Aug 13, 2010, 5:34 PM CDT (22:34 UTC)
Expired: Aug 13, 2010, 6:30 PM CDT
In force: 56 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

Counties Blue Earth County, MN, Le Sueur County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 86 km from the middle of the area, began a volume at 22:36 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
Aug 13, 5:35 PM CDT	TORNADO	4 Ssw Mankato, MN	DEBRIS NOTED AT GROUND.

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
Aug 13, 2:39 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.6 hours before the alert went out and 85 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: 112 J/kg
Mixed-layer CIN: -488 J/kg
Mixed-layer LCL: 959 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 206 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

045 
WFUS53 KMPX 132234
TORMPX
MNC013-079-161-132330-
/O.NEW.KMPX.TO.W.0099.100813T2234Z-100813T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
534 PM CDT FRI AUG 13 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...
  EASTERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHWESTERN WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 630 PM CDT

* AT 531 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 3
  MILES NORTH OF MANKATO...OR ABOUT 3 MILES NORTHEAST OF NORTH
  MANKATO. RADAR SHOWED THE SEVERE STORM MOVING EAST AT 20 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  MAPLETON...
  EAGLE LAKE...
  CLEVELAND...
  ST CLAIR...
  PEMBERTON...
  JANESVILLE...
  ELYSIAN...
  KILKENNY...
  MADISON LAKE...
  GREENLAND...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 4393 9420 4417 9404 4419 9400 4422 9401
      4436 9392 4434 9354 4388 9376
TIME...MOT...LOC 2234Z 279DEG 19KT 4421 9397

$$

JLT

5 follow-up statements

921 
WWUS53 KMPX 132237
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
537 PM CDT FRI AUG 13 2010

MNC013-079-161-132330-
/O.CON.KMPX.TO.W.0099.000000T0000Z-100813T2330Z/
LE SUEUR MN-BLUE EARTH MN-WASECA MN-
537 PM CDT FRI AUG 13 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN WASECA...
EASTERN BLUE EARTH AND SOUTHERN LE SUEUR COUNTIES UNTIL 630 PM CDT...

AT 536 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.  THIS 
TORNADO WAS LOCATED SOUTH OF MANKATO...MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAPLETON...EAGLE LAKE...CLEVELAND...ST CLAIR...PEMBERTON...
  JANESVILLE...ELYSIAN...KILKENNY...MADISON LAKE AND GREENLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.

&&

LAT...LON 4393 9420 4417 9404 4419 9400 4422 9401
      4436 9392 4434 9354 4388 9376
TIME...MOT...LOC 2238Z 279DEG 19KT 4421 9394

$$

JLT

394 
WWUS53 KMPX 132249
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
549 PM CDT FRI AUG 13 2010

MNC013-079-161-132330-
/O.CON.KMPX.TO.W.0099.000000T0000Z-100813T2330Z/
LE SUEUR MN-BLUE EARTH MN-WASECA MN-
549 PM CDT FRI AUG 13 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN WASECA...
EASTERN BLUE EARTH AND SOUTHERN LE SUEUR COUNTIES UNTIL 630 PM CDT...

AT 545 PM CDT...TRAINED WEATHER SPOTTERS REPORTED NUMEROUS FUNNEL 
CLOUDS EAST AND SOUTH OF MANKATO. THIS DANGEROUS STORM WAS LOCATED NEAR 
EAGLE LAKE...OR 6 MILES NORTHEAST OF MANKATO...MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  ST CLAIR...PEMBERTON...JANESVILLE...ELYSIAN...KILKENNY...MADISON
  LAKE AND GREENLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT... EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.

&&

LAT...LON 4393 9420 4417 9404 4419 9400 4422 9401
      4436 9392 4434 9354 4388 9376
TIME...MOT...LOC 2248Z 279DEG 19KT 4420 9387

$$

JLT

300 
WWUS53 KMPX 132313
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
613 PM CDT FRI AUG 13 2010

MNC013-079-161-132330-
/O.CON.KMPX.TO.W.0099.000000T0000Z-100813T2330Z/
LE SUEUR MN-BLUE EARTH MN-WASECA MN-
613 PM CDT FRI AUG 13 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN WASECA...
EASTERN BLUE EARTH AND SOUTHERN LE SUEUR COUNTIES UNTIL 630 PM CDT...

AT 608 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS STORM
WAS LOCATED NEAR EAGLE LAKE...OR 10 MILES EAST OF MANKATO...MOVING
EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  JANESVILLE...ELYSIAN...KILKENNY AND GREENLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

&&

LAT...LON 4393 9420 4417 9404 4419 9400 4422 9401
      4436 9392 4434 9354 4388 9376
TIME...MOT...LOC 2313Z 279DEG 19KT 4416 9375

$$

JLT

105 
WWUS53 KMPX 132317
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
617 PM CDT FRI AUG 13 2010

MNC079-161-132326-
/O.CAN.KMPX.TO.W.0099.000000T0000Z-100813T2330Z/
LE SUEUR MN-WASECA MN-
617 PM CDT FRI AUG 13 2010

...THE TORNADO WARNING FOR NORTHWESTERN WASECA AND SOUTHERN LE SUEUR
COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

LAT...LON 4391 9401 4392 9405 4419 9400 4424 9394
      4425 9382 4424 9377 4388 9378
TIME...MOT...LOC 2316Z 276DEG 19KT 4396 9383

$$

MNC013-132330-
/O.CON.KMPX.TO.W.0099.000000T0000Z-100813T2330Z/
BLUE EARTH MN-
617 PM CDT FRI AUG 13 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN BLUE EARTH COUNTY
UNTIL 630 PM CDT...

AT 612 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS STORM
WAS LOCATED 5 MILES SOUTHWEST OF PEMBERTON...OR 16 MILES SOUTHEAST OF
MANKATO...MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  PEMBERTON.
  MAPLETON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

&&

LAT...LON 4391 9401 4392 9405 4419 9400 4424 9394
      4425 9382 4424 9377 4388 9378
TIME...MOT...LOC 2316Z 276DEG 19KT 4396 9383

$$

JLT

259 
WWUS53 KMPX 132325
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
625 PM CDT FRI AUG 13 2010

MNC013-132335-
/O.EXP.KMPX.TO.W.0099.000000T0000Z-100813T2330Z/
BLUE EARTH MN-
625 PM CDT FRI AUG 13 2010

...THE TORNADO WARNING FOR EASTERN BLUE EARTH COUNTY WILL EXPIRE AT
630 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

LAT...LON 4391 9401 4392 9405 4419 9400 4424 9394
      4425 9382 4424 9377 4388 9378
TIME...MOT...LOC 2325Z 276DEG 19KT 4395 9376

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 7:02 PM CDT	Tornado Warning	MPX	Swift	43 min
Aug 12, 7:10 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	65 min
Aug 12, 7:20 PM CDT	Severe Thunderstorm Warning	MPX	Stearns, Todd	40 min
Aug 12, 7:25 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod, Meeker, Sherburne, Sibley and 1 more	50 min
Aug 12, 7:36 PM CDT	Severe Thunderstorm Warning	MPX	Douglas	24 min
Aug 12, 7:43 PM CDT	Special Weather Statement	MPX	Le Sueur, Rice, Scott	47 min
Aug 12, 7:58 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison, Sherburne, Stearns, Todd	62 min
Aug 12, 8:08 PM CDT	Special Weather Statement	MPX	Anoka, Isanti, Ramsey	37 min
Aug 12, 8:14 PM CDT	Tornado Warning	MPX	Benton, Sherburne, Stearns	25 min
Aug 12, 8:28 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Isanti, Kanabec, Mille Lacs, Morrison	62 min
Aug 12, 8:44 PM CDT	Severe Thunderstorm Warning	MPX	Chisago, Isanti	46 min
Aug 12, 10:15 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Renville, Yellow Medicine	60 min
Aug 12, 10:57 PM CDT	Areal Flood Advisory	MPX	Brown, Chippewa, Kandiyohi, Lac qui Parle, Meeker, Nicollet and 8 more	6 hr
Aug 12, 11:03 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Renville, Yellow Medicine	57 min
Aug 12, 11:25 PM CDT	Flash Flood Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle, Renville, Yellow Medicine	3 hr
Aug 12, 11:28 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Yellow Medicine	47 min
Aug 13, 12:10 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Martin, Watonwan	65 min
Aug 13, 12:13 AM CDT	Flash Flood Warning	MPX	McLeod, Meeker, Renville, Sibley, Wright	3 hr
Aug 13, 12:28 AM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Renville	62 min
Aug 13, 12:44 AM CDT	Areal Flood Advisory	MPX	Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and 3 more	3 hr
Aug 13, 1:05 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Scott, Sibley	55 min
Aug 13, 1:12 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet, Waseca	63 min
Aug 13, 1:50 AM CDT	Special Weather Statement	MPX	Anoka, Dakota, Hennepin, Ramsey, Rice, Washington	70 min
Aug 13, 1:56 AM CDT	Areal Flood Advisory	MPX	Blue Earth, Le Sueur, Nicollet, Rice, Sibley, Steele and 1 more	3 hr
Aug 13, 2:09 AM CDT	Flash Flood Warning	MPX	Carver, Dakota, Hennepin, Ramsey, Scott, Washington	3 hr
Aug 13, 2:09 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Rice, Steele, Waseca	66 min
Aug 13, 2:52 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue	53 min
Aug 13, 3:14 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice, Steele	61 min
Aug 13, 3:30 AM CDT	Flash Flood Warning	MPX	Goodhue	3 hr
Aug 13, 3:41 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Washington	64 min
Aug 13, 3:55 AM CDT	Tornado Warning	MPX	Goodhue	18 min
Aug 13, 4:11 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Le Sueur, Rice, Scott, Washington	64 min
Aug 13, 4:26 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Carver, Dakota, Hennepin, McLeod, Ramsey and 4 more	64 min
Aug 13, 4:38 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Washington	67 min
Aug 13, 5:25 AM CDT	Special Weather Statement	MPX	Pope	50 min
Aug 13, 5:38 AM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens, Swift	52 min
Aug 13, 6:10 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	50 min
Aug 13, 6:52 AM CDT	Special Weather Statement	MPX	Meeker	53 min
Aug 13, 1:05 PM CDT	Special Weather Statement	MPX	Isanti	40 min
Aug 13, 1:46 PM CDT	Special Weather Statement	MPX	Stearns	29 min
Aug 13, 2:13 PM CDT	Tornado Warning	MPX	Chisago	17 min
Aug 13, 2:25 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Meeker, Morrison, Sherburne, Stearns, Todd and 1 more	65 min
Aug 13, 2:37 PM CDT	Special Weather Statement	MPX	Carver, McLeod, Nicollet, Sibley	23 min
Aug 13, 2:53 PM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Sibley, Wright	52 min
Aug 13, 3:01 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs, Morrison, Sherburne, Stearns, Wright	59 min
Aug 13, 3:19 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Chisago, Isanti, Kanabec, Mille Lacs, Morrison and 1 more	56 min
Aug 13, 4:34 PM CDT	Special Weather Statement	MPX	McLeod, Sherburne, Wright	41 min
Aug 13, 4:36 PM CDT	Special Weather Statement	MPX	McLeod, Sherburne, Wright	39 min
Aug 13, 5:36 PM CDT	Severe Thunderstorm Warning	MPX	Washington	54 min
Aug 13, 5:40 PM CDT	Areal Flood Warning	MPX	Goodhue	6 hr
Aug 13, 6:13 PM CDT	Flash Flood Warning	MPX	Dakota	66 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.