Alert archive / Minnesota / Special Weather Statements in 2011

Special Weather Statement, NWS Twin Cities, MN

August 2, 20117 counties in Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 2, 2011, 7:24 AM CDT for 7 counties in Minnesota. It was in force for 36 min. 3 reports 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
Aug 2, 2011, 7:24 AM CDT (12:24 UTC)
Expired
Aug 2, 2011, 8:00 AM CDT
In force
36 min
Issued by
NWS Twin Cities, MN

Counties Benton County, MN, Carver County, MN, Isanti County, MN, McLeod County, MN, Sherburne County, MN, Sibley County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 69 km from the middle of the area, began a volume at 12:24 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

TimeReportWhereRemark
Aug 2, 7:35 AM CDTTSTM WND GST 593 S Litchfield, MNLITCHFIELD RAWS
Aug 2, 8:00 AM CDTTSTM WND DMG2 Nw Howard Lake, MNLARGE TREE BLOCKING COUNTY ROAD 5.
Aug 2, 8:08 AM CDTTSTM WND DMG3 N St Francis, MN12 INCH BRANCHES DOWN.

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, 0.4 hours before the alert went out and 69 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 12:00Z on 2011-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2133 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2011-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 square meters per square second.193958Sfc1 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
2133 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
194 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.

612 
WWUS83 KMPX 021224
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
724 AM CDT TUE AUG 2 2011

MNZ043>045-049>053-058>061-065>068-075-021300-
ANOKA-BENTON-CARVER-CHISAGO-HENNEPIN-ISANTI-KANABEC-MCLEOD-MEEKER-
MILLE
LACS-MORRISON-NICOLLET-RENVILLE-SHERBURNE-SIBLEY-STEARNS-WRIGHT-
724 AM CDT TUE AUG 2 2011

...STRONG WINDS AND THUNDERSTORMS MOVING ACROSS CENTRAL 
MINNESOTA...
 
AT 715 AM CDT...STRONG WINDS AND A FEW STRONG THUNDERSTORMS WERE 
MOVING ACROSS CENTRAL...AND INTO EAST CENTRAL MINNESOTA. THERE WERE 
STRONG WINDS UP TO 50 MPH OUT AHEAD OF THE THUNDERSTORMS AS WELL. 
SOME OF THE STRONGER WINDS WILL LIKELY AFFECT ST 
CLOUD...HUTCHINSON...GAYLORD...ANNANDALE...WATERTOWN...AND THE 
WESTERN SECTIONS OF THE TWIN CITIES...INCLUDING THE LAKE MINNETONKA 
AREA. 

PEOPLE IN BENTON...EASTERN MEEKER...EASTERN RENVILLE...MCLEOD...
WESTERN HENNEPIN...SHERBURNE...SIBLEY...EASTERN STEARNS...
SOUTHERN MILLE LACS...CARVER AND WRIGHT COUNTIES...SHOULD MONITOR
THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS 
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER 
THREATEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THUNDERSTORMS COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

&&

LAT...LON 4577 9313 4574 9313 4574 9302 4572 9297
      4442 9410 4463 9492 4594 9380
TIME...MOT...LOC 1216Z 288DEG 32KT 4583 9373 4468 9472

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 12:00 AM CDTRiver Flood WarningMPXTodd57 hr
Aug 2, 5:26 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift, Yellow Medicine64 min
Aug 2, 6:06 AM CDTSpecial Weather StatementMPXPope, Stevens54 min
Aug 2, 6:41 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns, Swift51 min
Aug 2, 6:56 AM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Swift64 min
Aug 2, 7:23 AM CDTSevere Thunderstorm WarningMPXMeeker, Sherburne, Stearns, Wright67 min
Aug 2, 7:39 AM CDTSevere Thunderstorm WarningMPXBenton, Stearns51 min
Aug 2, 7:57 AM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin, Isanti, Ramsey, Sherburne, Wright48 min
Aug 2, 8:05 AM CDTSevere Thunderstorm WarningMPXBenton, Isanti, Kanabec, Mille Lacs55 min
Aug 2, 8:31 AM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Isanti, Washington74 min
Aug 1, 9:09 PM CDTSpecial Weather StatementMPXBarron, Chippewa81 min
Aug 1, 10:36 PM CDTSpecial Weather StatementMPXRusk54 min
Aug 2, 3:29 AM CDTSpecial Weather StatementMPXRusk46 min
Aug 2, 4:17 AM CDTSpecial Weather StatementMPXBarron, Polk, Rusk58 min
Aug 2, 4:36 AM CDTSevere Thunderstorm WarningMPXBarron, Polk, Rusk54 min
Aug 2, 4:44 AM CDTAreal Flood AdvisoryMPXBarron, Chippewa, Dunn, Polk, Rusk6 hr
Aug 2, 5:29 AM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Dunn, Rusk61 min
Aug 2, 9:13 AM CDTSevere Thunderstorm WarningMPXBarron, Polk62 min
Aug 2, 9:42 AM CDTSevere Thunderstorm WarningMPXBarron, Rusk93 min
Aug 2, 9:56 AM CDTFlash Flood WarningMPXBarron, Rusk5 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.