Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 185, NWS Twin Cities, MN

July 26, 20114 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 26, 2011, 11:59 PM CDT for 4 counties in Minnesota. It was in force for 61 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
Jul 26, 2011, 11:59 PM CDT (04:59 UTC)
Expired
Jul 27, 2011, 1:00 AM CDT
In force
61 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Kandiyohi County, MN, Pope County, MN, Stearns County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 152 km from the middle of the area, began a volume at 05:00 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.

IssuedProductOfficeLasted
Jul 26, 7:32 PM CDTTornado WatchSPC5 hr
Jul 26, 10:10 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.0 hours before the alert went out and 149 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2011-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2011-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1713 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
98 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.

501 
WUUS53 KMPX 270459
SVRMPX
MNC067-121-145-151-270600-
/O.NEW.KMPX.SV.W.0185.110727T0459Z-110727T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1159 PM CDT TUE JUL 26 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN KANDIYOHI COUNTY IN CENTRAL MINNESOTA...
  POPE COUNTY IN WEST CENTRAL MINNESOTA...
  WESTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  EASTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 100 AM CDT

* AT 1155 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES SOUTHWEST
  OF STARBUCK TO 9 MILES SOUTH OF STARBUCK TO 10 MILES NORTHWEST OF
  SUNBURG TO DE GRAFF...AND MOVING EAST AT 30 MPH.  PENNY SIZE HAIL
  MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IN THE WARNING INCLUDE...
  BENSON...
  GLENWOOD...
  DE GRAFF...
  STARBUCK...
  KERKHOVEN...
  LONG BEACH...
  SUNBURG...
  SEDAN...
  BELGRADE...
  GEORGEVILLE...
  SPICER...
  NEW LONDON...
  ELROSA...
  LAKE HENRY...

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.

REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4568 9573 4578 9482 4540 9476 4515 9477
      4515 9562 4541 9563
TIME...MOT...LOC 0500Z 259DEG 26KT 4552 9555 4548 9545
          4542 9538 4521 9542
WIND...HAIL 60MPH 0.75IN

$$
3 follow-up statements
969 
WWUS53 KMPX 270512
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1212 AM CDT WED JUL 27 2011

MNC067-121-145-151-270600-
/O.CON.KMPX.SV.W.0185.000000T0000Z-110727T0600Z/
KANDIYOHI MN-POPE MN-STEARNS MN-SWIFT MN-
1212 AM CDT WED JUL 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
SWIFT...WESTERN STEARNS...POPE AND NORTHERN KANDIYOHI COUNTIES UNTIL
100 AM CDT...

AT 1209 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6
MILES SOUTHEAST OF STARBUCK TO 8 MILES SOUTHWEST OF SEDAN TO SUNBURG
TO KERKHOVEN...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  GLENWOOD...SEDAN...BELGRADE...GEORGEVILLE...NEW LONDON...SPICER...
  ELROSA...LAKE HENRY...HAWICK...MEIRE GROVE...MELROSE...SAUK
  CENTRE...VILLARD...BROOTEN AND GROVE LAKE.

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.

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 4540 9476 4515 9477 4515 9562 4532 9553
      4550 9562 4570 9556 4577 9482
TIME...MOT...LOC 0512Z 259DEG 26KT 4557 9541 4550 9533
          4542 9522 4523 9530
WIND...HAIL 60MPH <.75IN

$$
912 
WWUS53 KMPX 270528
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1228 AM CDT WED JUL 27 2011

MNC067-121-145-151-270600-
/O.CON.KMPX.SV.W.0185.000000T0000Z-110727T0600Z/
KANDIYOHI MN-POPE MN-STEARNS MN-SWIFT MN-
1228 AM CDT WED JUL 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
SWIFT...WESTERN STEARNS...EASTERN POPE AND NORTHERN KANDIYOHI
COUNTIES UNTIL 100 AM CDT...

AT 1227 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM SEDAN
TO ELROSA TO BELGRADE TO 5 MILES EAST OF KERKHOVEN...MOVING EAST AT
30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ELROSA...GEORGEVILLE...NEW LONDON...LAKE HENRY...SPICER...MEIRE
  GROVE...SAUK CENTRE...HAWICK...MELROSE...GROVE LAKE...WESTPORT...
  SPRING HILL...GREENWALD AND REGAL.

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.

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 4540 9476 4515 9477 4515 9550 4539 9533
      4554 9546 4571 9539 4577 9482
TIME...MOT...LOC 0528Z 259DEG 26KT 4561 9525 4557 9502
          4547 9500 4519 9520
WIND...HAIL 60MPH <.75IN

$$
739 
WWUS53 KMPX 270544
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1244 AM CDT WED JUL 27 2011

MNC121-151-270559-
/O.CAN.KMPX.SV.W.0185.000000T0000Z-110727T0600Z/
POPE MN-SWIFT MN-
1244 AM CDT WED JUL 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SWIFT AND EASTERN POPE
COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE 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 4561 9480 4540 9476 4515 9477 4515 9525
      4520 9525 4541 9510
TIME...MOT...LOC 0544Z 259DEG 26KT 4540 9483 4540 9482
          4524 9492 4518 9501

$$

MNC067-145-270600-
/O.CON.KMPX.SV.W.0185.000000T0000Z-110727T0600Z/
KANDIYOHI MN-STEARNS MN-
1244 AM CDT WED JUL 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
STEARNS AND NORTHERN KANDIYOHI COUNTIES UNTIL 100 AM CDT...

AT 1241 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
GEORGEVILLE TO LAKE HENRY TO SPICER TO WILLMAR...MOVING EAST AT 30
MPH.

LOCATIONS IMPACTED INCLUDE...
  HAWICK.

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.

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 4561 9480 4540 9476 4515 9477 4515 9525
      4520 9525 4541 9510
TIME...MOT...LOC 0544Z 259DEG 26KT 4540 9483 4540 9482
          4524 9492 4518 9501
WIND...HAIL 60MPH <.75IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 8:56 PM CDTSpecial Weather StatementMPXDouglas, Stevens64 min
Jul 26, 9:36 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Pope, Stevens, Swift54 min
Jul 26, 10:26 PM CDTSevere Thunderstorm WarningMPXChippewa, Douglas, Lac qui Parle, Pope, Stevens, Swift79 min
Jul 27, 12:04 AM CDTFlash Flood WatchMPXAnoka, Benton, Carver, Chippewa, Chisago, Dakota and 20 more9 hr
Jul 27, 2:22 AM CDTSpecial Weather StatementMPXChisago, Isanti, Kanabec23 min
Jul 27, 3:16 AM CDTSpecial Weather StatementMPXBrown59 min
Jul 27, 3:49 AM CDTSpecial Weather StatementMPXBrown, McLeod, Nicollet, Sibley56 min
Jul 27, 5:24 AM CDTAreal Flood AdvisoryMPXBlue Earth, Faribault, Martin, Watonwan4 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011

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.