Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 140, NWS Twin Cities, MN

June 10, 2012Freeborn County, Steele County, Waseca County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 10, 2012, 8:48 PM CDT for Freeborn County, Steele County, Waseca County, Minnesota. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 10, 2012, 8:48 PM CDT (01:48 UTC)
Expired: Jun 10, 2012, 9:24 PM CDT
In force: 36 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.88 in
Wind: 65.0 mph

Counties Freeborn County, MN, Steele County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 123 km from the middle of the area, began a volume at 01:50 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.

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 10, 3:03 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.8 hours before the alert went out and 123 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: 282 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 2269 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 273 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

420 
WUUS53 KMPX 110148
SVRMPX
MNC047-147-161-110245-
/O.NEW.KMPX.SV.W.0140.120611T0148Z-120611T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
848 PM CDT SUN JUN 10 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...
  STEELE COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHEASTERN WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 945 PM CDT

* AT 846 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING DAMAGING WINDS OF 65 MPH. THIS STORM WAS LOCATED NEAR
  ALBERT LEA...AND MOVING NORTHEAST AT 50 MPH.  NICKEL SIZE HAIL MAY
  ALSO ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IN THE WARNING INCLUDE...
  ALBERT LEA...
  HAYWARD...
  OWATONNA...
  TWIN LAKES...
  CONGER...
  ALDEN...
  GLENVILLE...
  MYRTLE...
  FREEBORN...
  MANCHESTER...
  LONDON...
  CLARKS GROVE...
  NEW RICHLAND...
  HOLLANDALE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL. SEEK SHELTER NOW INSIDE
A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4375 9364 4404 9339 4419 9305 4351 9303
      4352 9338 4350 9364
TIME...MOT...LOC 0148Z 214DEG 44KT 4366 9340
WIND...HAIL 65MPH 0.88IN

$$

2 follow-up statements

112 
WWUS53 KMPX 110216
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
916 PM CDT SUN JUN 10 2012

MNC161-110230-
/O.CAN.KMPX.SV.W.0140.000000T0000Z-120611T0245Z/
WASECA MN-
916 PM CDT SUN JUN 10 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASECA COUNTY IS
CANCELLED...

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

LAT...LON 4354 9314 4362 9323 4373 9334 4386 9329
      4419 9305 4351 9303
TIME...MOT...LOC 0215Z 214DEG 44KT 4393 9314

$$

MNC047-147-110245-
/O.CON.KMPX.SV.W.0140.000000T0000Z-120611T0245Z/
FREEBORN MN-STEELE MN-
916 PM CDT SUN JUN 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
STEELE AND EASTERN FREEBORN COUNTIES UNTIL 945 PM CDT...

AT 913 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH.  THIS
STORM WAS LOCATED NEAR STEELE CENTER...OR 12 MILES SOUTH OF
OWATONNA...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  BIXBY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4354 9314 4362 9323 4373 9334 4386 9329
      4419 9305 4351 9303
TIME...MOT...LOC 0215Z 214DEG 44KT 4393 9314
WIND...HAIL 60MPH <.75IN

$$

923 
WWUS53 KMPX 110224
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
924 PM CDT SUN JUN 10 2012

MNC047-147-110239-
/O.CAN.KMPX.SV.W.0140.000000T0000Z-120611T0245Z/
FREEBORN MN-STEELE MN-
924 PM CDT SUN JUN 10 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STEELE AND
EASTERN FREEBORN COUNTIES IS CANCELLED...

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

LAT...LON 4354 9314 4362 9323 4373 9334 4386 9329
      4419 9305 4351 9303
TIME...MOT...LOC 0224Z 214DEG 44KT 4402 9304

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 7:07 PM CDT	Special Weather Statement	MPX	Le Sueur, Nicollet, Scott, Sibley	53 min
Jun 10, 7:35 PM CDT	Special Weather Statement	MPX	Anoka, Chisago, Hennepin, Isanti, Kanabec, Ramsey	55 min
Jun 10, 7:35 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	40 min
Jun 10, 7:41 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Scott	49 min
Jun 10, 7:54 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Hennepin, Isanti	36 min
Jun 10, 7:55 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Nicollet, Scott, Sibley	50 min
Jun 10, 7:59 PM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Wright	46 min
Jun 10, 8:18 PM CDT	Tornado Warning	MPX	Carver, Le Sueur, Scott, Sibley	42 min
Jun 10, 8:29 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Scott, Steele	45 min
Jun 10, 8:32 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Hennepin, Isanti, Ramsey, Washington	58 min
Jun 10, 8:39 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Sibley	36 min
Jun 10, 8:42 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	63 min
Jun 10, 8:50 PM CDT	Special Weather Statement	MPX	Isanti	40 min
Jun 10, 9:29 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Isanti, Washington	61 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.