Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Twin Cities, MN

May 3, 2012Douglas County, Todd County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 3, 2012, 6:24 AM CDT for Douglas County, Todd County, Minnesota. It was in force for 36 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: May 3, 2012, 6:24 AM CDT (11:24 UTC)
Expired: May 3, 2012, 7:00 AM CDT
In force: 36 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Douglas County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 184 km from the middle of the area, began a volume at 11:25 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
May 3, 7:07 AM CDT	HAIL 0.88	Long Prairie, MN	MAINLY DIME AND NICKEL SIZE HAIL NOTED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 11.4 hours before the alert went out and 182 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: 84 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 1937 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

194 
WUUS53 KMPX 031124
SVRMPX
MNC041-153-031200-
/O.NEW.KMPX.SV.W.0039.120503T1124Z-120503T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
624 AM CDT THU MAY 3 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
  CENTRAL TODD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 700 AM CDT

* AT 621 AM CDT...TRAINED SPOTTERS REPORTED A SEVERE THUNDERSTORM
  WITH QUARTER SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS
  LOCATED NEAR MILLERVILLE...OR ABOUT 16 MILES NORTH OF ALEXANDRIA...
  AND MOVING EAST AT 45 MPH. HAIL THE SIZE OF QUARTERS WAS REPORTED  
  AT 622 AM IN MILLERVILLE. 

LOCATIONS IN THE WARNING INCLUDE...
  LONG PRAIRIE...
  MILLERVILLE...
  MILTONA...
  CARLOS...
  ROSE CITY...
  EAGLE BEND...
  CLOTHO...
  CLARISSA...
  BROWERVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4625 9466 4589 9467 4599 9558 4611 9556
      4612 9519 4611 9516 4622 9515
TIME...MOT...LOC 1123Z 277DEG 52KT 4608 9545
WIND...HAIL 60MPH 1.00IN

$$

AJZ

1 follow-up statement

930 
WWUS53 KMPX 031141
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
641 AM CDT THU MAY 3 2012

MNC041-153-031200-
/O.CON.KMPX.SV.W.0039.000000T0000Z-120503T1200Z/
DOUGLAS MN-TODD MN-
641 AM CDT THU MAY 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL TODD
AND NORTHEASTERN DOUGLAS COUNTIES UNTIL 700 AM CDT...

AT 634 AM CDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS OF 60
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES
NORTHEAST OF PARKERS PRAIRIE TO EAGLE BEND TO MILTONA...MOVING EAST 
AT 50 MPH. AT 621 AM A TRAINED SPOTTER REPORTED HAIL COVERING THE
GROUND IN MILLERVILLE...WITH THE LARGEST HAIL STONES MEAUSURING UP
TO A QUARTER IN DIAMETER. 

LOCATIONS IMPACTED INCLUDE...
  CLOTHO...CLARISSA AND BROWERVILLE...AND BERTHA.

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.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4625 9469 4620 9469 4604 9469 4597 9540
      4597 9541 4612 9520 4612 9519 4611 9516
      4622 9515
TIME...MOT...LOC 1139Z 261DEG 53KT 4622 9509 4616 9501
          4605 9516
WIND...HAIL 60MPH 1.00IN

$$

AJZ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 7:12 PM CDT	Severe Thunderstorm Warning	MPX	Brown	63 min
May 2, 7:29 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	61 min
May 2, 7:30 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Rice, Steele	60 min
May 2, 7:32 PM CDT	Tornado Warning	MPX	Rice, Steele, Waseca	28 min
May 2, 7:51 PM CDT	Areal Flood Advisory	MPX	Goodhue, Rice	3 hr
May 2, 7:58 PM CDT	Special Weather Statement	MPX	Nicollet	62 min
May 2, 8:22 PM CDT	Flash Flood Warning	MPX	Goodhue	3 hr
May 2, 8:27 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	33 min
May 2, 8:46 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	29 min
May 2, 9:08 PM CDT	Special Weather Statement	MPX	Lac qui Parle	52 min
May 2, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift	50 min
May 2, 10:01 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle	44 min
May 2, 10:12 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens, Swift	48 min
May 2, 10:25 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle	35 min
May 2, 10:55 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Swift	50 min
May 2, 11:00 PM CDT	Tornado Warning	MPX	Chippewa	45 min
May 2, 11:46 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi	59 min
May 3, 12:47 AM CDT	Special Weather Statement	MPX	Meeker, Stearns	58 min
May 3, 1:05 AM CDT	Severe Thunderstorm Warning	MPX	Meeker	55 min
May 3, 1:59 AM CDT	Special Weather Statement	MPX	Anoka, Carver, Hennepin, Sherburne, Wright	76 min
May 3, 6:49 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Morrison, Todd	41 min
May 3, 7:34 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison	41 min
May 3, 7:57 AM CDT	Special Weather Statement	MPX	Scott	48 min
May 3, 8:31 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice, Scott	59 min
May 3, 9:00 AM CDT	Special Weather Statement	MPX	Wright	45 min
May 3, 9:37 AM CDT	Special Weather Statement	MPX	Anoka, Carver, Hennepin, Ramsey	38 min
May 3, 10:12 AM CDT	Special Weather Statement	MPX	Le Sueur	48 min
May 3, 10:22 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	56 min
May 3, 10:36 AM CDT	Severe Thunderstorm Warning	MPX	Washington	30 min
May 3, 10:55 AM CDT	Special Weather Statement	MPX	Goodhue, Rice	50 min
May 3, 3:05 PM CDT	Special Weather Statement	MPX	Steele, Waseca	40 min
May 3, 3:37 PM CDT	Special Weather Statement	MPX	Steele	38 min
May 3, 4:25 PM CDT	Special Weather Statement	MPX	Faribault	50 min
May 3, 6:19 PM CDT	Special Weather Statement	MPX	Waseca	26 min
May 3, 6:30 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	20 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.