Alert archive / Minnesota / Special Weather Statements in 2015

Special Weather Statement, NWS Twin Cities, MN

August 2, 2015Brown County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 2, 2015, 12:33 AM CDT for Brown County, Minnesota. It was in force for 27 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
Aug 2, 2015, 12:33 AM CDT (05:33 UTC)
Expired
Aug 2, 2015, 1:00 AM CDT
In force
27 min
Issued by
NWS Twin Cities, MN

County Brown County, MN

The radar

The Minneapolis radar (KMPX), 104 km from the middle of the area, began a volume at 05:35 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, 5.6 hours before the alert went out and 102 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 2015-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1730 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 00:00Z on 2015-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 218 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
1730 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
1483 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
218 m²/s²
0-3 km storm-relative helicity
333 m²/s²
Significant tornado parameter
0.4
Supercell composite
14.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

933 
WWUS83 KMPX 020533
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1233 AM CDT SUN AUG 2 2015
 
MNZ074-020600-
BROWN-
1233 AM CDT SUN AUG 2 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN BROWN COUNTY 
THROUGH 100 AM CDT...

AT 1232 AM CDT...A STRONG THUNDERSTORM WAS NEAR HANSKA...OR 10 MILES
SOUTHWEST OF NEW ULM...MOVING EAST AT 20 MPH.

WINDS IN EXCESS OF 30 MPH AND NICKEL SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
NEW ULM...HANSKA AND SEARLES. 

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY CAN RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN THE TWIN CITIES.

LAT...LON 4411 9464 4422 9469 4432 9445 4427 9442
      4426 9437 4411 9437
TIME...MOT...LOC 0532Z 249DEG 19KT 4417 9456 
$$

JPC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 1:02 AM CDTSpecial Weather StatementMPXBlue Earth58 min
Aug 2, 2:00 AM CDTSpecial Weather StatementMPXWaseca60 min
Aug 2, 4:20 AM CDTSpecial Weather StatementMPXKanabec25 min
Aug 2, 8:01 AM CDTSpecial Weather StatementMPXDouglas, Todd59 min
Aug 2, 8:13 AM CDTSevere Thunderstorm WarningMPXDouglas, Todd32 min
Aug 2, 8:40 AM CDTSevere Thunderstorm WarningMPXStearns, Todd37 min
Aug 2, 9:37 AM CDTSpecial Weather StatementMPXStearns23 min
Aug 2, 11:05 AM CDTSpecial Weather StatementMPXIsanti, Sherburne40 min
Aug 2, 12:58 AM CDTSpecial Weather StatementMPXRusk62 min
Aug 2, 6:05 AM CDTSpecial Weather StatementMPXRusk40 min

Nearby

Special Weather Statements in Minnesota, 2015Every special weather statement in 2015

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.