Alert archive / Minnesota / Special Weather Statements in 2011

Special Weather Statement, NWS Twin Cities, MN

July 27, 20114 counties in Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 27, 2011, 3:49 AM CDT for 4 counties in Minnesota. It was in force for 56 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 27, 2011, 3:49 AM CDT (08:49 UTC)
Expired
Jul 27, 2011, 4:45 AM CDT
In force
56 min
Issued by
NWS Twin Cities, MN

Counties Brown County, MN, McLeod County, MN, Nicollet County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 86 km from the middle of the area, began a volume at 08:50 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 8.8 hours before the alert went out and 84 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.

358 
WWUS83 KMPX 270849
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
349 AM CDT WED JUL 27 2011

MNZ058-065>069-074>076-083-270945-
BLUE EARTH-BROWN-CARVER-LE
SUEUR-MCLEOD-MEEKER-NICOLLET-RENVILLE-SCOTT-SIBLEY-
349 AM CDT WED JUL 27 2011

...THUNDERSTORMS MOVING OVER BLUE EARTH...BROWN...CARVER...LE 
SUEUR...MCLEOD...MEEKER...NICOLLET...RENVILLE...SCOTT AND SIBLEY 
COUNTIES THROUGH 445 AM CDT...

AT 340 AM CDT...STRONG THUNDERSTORMS CONTINUED TO TRACK ALONG A LINE 
EXTENDING FROM 5 MILES EAST OF BIRD ISLAND TO 3 MILES WEST OF GIBBON 
TO 8 MILES SOUTH OF SLEEPY EYE. THESE STORMS WERE MOVING EAST AT 35 
MPH.

PEA SIZE HAIL...WINDS OF 40 TO 50 MPH...AND HEAVY DOWNPOURS ARE 
EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...  
  NEW ULM.
  BUFFALO LAKE.
  GAYLORD.
  HUTCHINSON.
  GLENCOE.
  BROWNTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 6AM.

&&

LAT...LON 4452 9465 4482 9490 4498 9411 4470 9379
      4428 9398 4410 9478 4411 9483 4411 9484
TIME...MOT...LOC 0846Z 255DEG 32KT 4480 9473 4454 9450
          4420 9467

$$

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 26, 11:59 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns, Swift61 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, 5:24 AM CDTAreal Flood AdvisoryMPXBlue Earth, Faribault, Martin, Watonwan4 hr

Nearby

Special Weather Statements in Minnesota, 2011Every special weather statement 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.