Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 89, NWS Twin Cities, MN

May 26, 2012Redwood County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 26, 2012, 7:51 AM CDT for Redwood County, Minnesota. It was in force for 54 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 26, 2012, 7:51 AM CDT (12:51 UTC)
Expired: May 26, 2012, 8:45 AM CDT
In force: 54 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 65.0 mph

County Redwood County, MN

The radar

The Sioux Falls radar (KFSD), 140 km from the middle of the area, began a volume at 12:53 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 26, 8:05 AM CDT	HAIL 0.75	5 W Walnut Grove, MN	LATE REPORT.

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 12:00Z, 0.9 hours before the alert went out and 148 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 858 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 268 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.

601 
WUUS53 KMPX 261251
SVRMPX
MNC127-261345-
/O.NEW.KMPX.SV.W.0089.120526T1251Z-120526T1345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
751 AM CDT SAT MAY 26 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  REDWOOD COUNTY IN SOUTHWEST MINNESOTA...

* UNTIL 845 AM CDT

* AT 747 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS OF 65 MPH. THIS
  STORM WAS LOCATED 6 MILES EAST OF BALATON...OR ABOUT 15 MILES NORTH
  OF SLAYTON...AND MOVING NORTHEAST AT 35 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  REVERE...
  LAMBERTON...
  LUCAN...
  VESTA...
  SANBORN...
  SEAFORTH...
  WABASSO...
  CLEMENTS...

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.

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

&&

LAT...LON 4449 9560 4459 9519 4428 9487 4428 9510
      4419 9511 4419 9559 4422 9560
TIME...MOT...LOC 1251Z 236DEG 32KT 4422 9572
WIND...HAIL 65MPH 1.25IN

$$

3 follow-up statements

451 
WWUS53 KMPX 261303
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
803 AM CDT SAT MAY 26 2012

MNC127-261345-
/O.CON.KMPX.SV.W.0089.000000T0000Z-120526T1345Z/
REDWOOD MN-
803 AM CDT SAT MAY 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR REDWOOD COUNTY
UNTIL 845 AM CDT...

AT 800 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...AND
DAMAGING WINDS OF 65 MPH.  THIS STORM WAS LOCATED NEAR TRACY...OR 16
MILES SOUTHEAST OF MARSHALL...MOVING NORTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  REVERE...LUCAN...LAMBERTON...VESTA...SEAFORTH...SANBORN...
  WABASSO...CLEMENTS...WALNUT GROVE...MILROY AND WANDA.

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 DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

&&

LAT...LON 4449 9560 4459 9519 4428 9487 4428 9510
      4419 9511 4419 9559 4422 9560
TIME...MOT...LOC 1304Z 243DEG 29KT 4427 9560
WIND...HAIL 60MPH 1.25IN

$$

339 
WWUS53 KMPX 261327
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
827 AM CDT SAT MAY 26 2012

MNC127-261345-
/O.CON.KMPX.SV.W.0089.000000T0000Z-120526T1345Z/
REDWOOD MN-
827 AM CDT SAT MAY 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR REDWOOD COUNTY
UNTIL 845 AM CDT...

AT 823 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES NORTH OF
LAMBERTON...OR 18 MILES SOUTHWEST OF REDWOOD FALLS...MOVING NORTHEAST
AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  SEAFORTH...WABASSO...SANBORN...CLEMENTS AND WANDA.

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 4432 9548 4449 9544 4459 9519 4429 9488
      4428 9510 4419 9511 4420 9551 4425 9552
TIME...MOT...LOC 1328Z 247DEG 26KT 4433 9525
WIND...HAIL 60MPH 1.00IN

$$

535 
WWUS53 KMPX 261343
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
843 AM CDT SAT MAY 26 2012

MNC127-261357-
/O.EXP.KMPX.SV.W.0089.000000T0000Z-120526T1345Z/
REDWOOD MN-
843 AM CDT SAT MAY 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR REDWOOD COUNTY WILL EXPIRE AT
845 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER HEAVY RAIN IS STILL OCCURRING WITH THIS
THUNDERSTORM.

LAT...LON 4432 9548 4449 9544 4459 9519 4429 9488
      4428 9510 4419 9511 4420 9551 4425 9552
TIME...MOT...LOC 1342Z 247DEG 26KT 4437 9512

$$

JPC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 2:34 AM CDT	Special Weather Statement	MPX	Martin	56 min
May 26, 3:44 AM CDT	Special Weather Statement	MPX	Blue Earth, Faribault, Freeborn, Martin, Rice, Steele and 1 more	61 min
May 26, 7:14 AM CDT	Special Weather Statement	MPX	Redwood	46 min
May 26, 8:26 AM CDT	Special Weather Statement	MPX	Brown, McLeod, Nicollet, Renville, Sibley	64 min
May 26, 9:07 AM CDT	Special Weather Statement	MPX	Watonwan	23 min
May 26, 9:33 AM CDT	Special Weather Statement	MPX	Blue Earth, Nicollet, Watonwan	27 min
May 26, 10:07 AM CDT	Special Weather Statement	MPX	Blue Earth, Waseca	23 min
May 26, 10:34 AM CDT	Special Weather Statement	MPX	Steele, Waseca	56 min
May 26, 11:34 AM CDT	Special Weather Statement	MPX	Freeborn, Steele	26 min
May 26, 11:36 AM CDT	Severe Thunderstorm Warning	MPX	Steele	8 min
May 26, 11:47 AM CDT	Special Weather Statement	MPX	Freeborn	28 min
May 26, 11:50 AM CDT	Special Weather Statement	MPX	Brown, McLeod, Nicollet, Sibley	55 min
May 26, 1:26 PM CDT	Special Weather Statement	MPX	Goodhue	34 min
May 26, 1:30 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Rice	45 min
May 26, 1:40 PM CDT	Special Weather Statement	MPX	Dakota	35 min
May 26, 2:15 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	60 min
May 26, 3:33 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Ramsey, Washington	57 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.