Alert archive / Minnesota / Special Weather Statements in 2012

Special Weather Statement, NWS Twin Cities, MN

July 6, 2012Carver County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 6, 2012, 10:40 PM CDT for Carver County, Minnesota. It was in force for 65 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 6, 2012, 10:40 PM CDT (03:40 UTC)
Expired
Jul 6, 2012, 11:45 PM CDT
In force
65 min
Issued by
NWS Twin Cities, MN

County Carver County, MN

The radar

The Minneapolis radar (KMPX), 21 km from the middle of the area, began a volume at 03:41 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, 3.7 hours before the alert went out and 18 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 2012-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1097 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2012-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939Sfc1 km3 km6 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
1097 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1600 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
37 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.

962 
WWUS83 KMPX 070340
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1040 PM CDT FRI JUL 6 2012

MNZ066-068-070445-
CARVER-MCLEOD-
1040 PM CDT FRI JUL 6 2012

...THUNDERSTORMS MOVING OVER CARVER AND MCLEOD COUNTIES THROUGH 1145 
PM CDT...

AT 1036 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM 4 MILES NORTHEAST OF SILVER LAKE. THIS STORM WAS MOVING
EAST AT 35 MPH.

PEA SIZE HAIL AND WINDS UP TO 50 MPH ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  SILVER LAKE.
  WINSTED.
  NEW GERMANY.
  MAYER.
  WACONIA.
  VICTORIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

&&

LAT...LON 4486 9425 4498 9422 4498 9377 4489 9376
      4489 9353 4481 9352 4480 9357 4475 9362
TIME...MOT...LOC 0341Z 281DEG 29KT 4493 9408

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 7:28 PM CDTSpecial Weather StatementMPXLe Sueur32 min
Jul 6, 9:39 PM CDTSevere Thunderstorm WarningMPXMeeker, Wright36 min
Jul 6, 10:45 PM CDTSpecial Weather StatementMPXRamsey60 min
Jul 6, 11:00 PM CDTSpecial Weather StatementMPXWashington45 min
Jul 6, 7:29 PM CDTSpecial Weather StatementMPXRusk46 min
Jul 6, 11:48 PM CDTSpecial Weather StatementMPXDunn42 min
Jul 6, 11:49 PM CDTSpecial Weather StatementMPXRusk41 min

Nearby

Special Weather Statements in Minnesota, 2012Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.