Alert archive / Minnesota / Special Weather Statements in 2014

Special Weather Statement, NWS Twin Cities, MN

August 4, 2014Martin County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 4, 2014, 10:16 AM CDT for Martin County, Minnesota. It was in force for 44 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 4, 2014, 10:16 AM CDT (15:16 UTC)
Expired
Aug 4, 2014, 11:00 AM CDT
In force
44 min
Issued by
NWS Twin Cities, MN

County Martin County, MN

The radar

The Minneapolis radar (KMPX), 151 km from the middle of the area, began a volume at 15:19 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 12:00Z, 3.3 hours before the alert went out and 150 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 2014-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 767 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 12:00Z on 2014-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
767 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1046 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
46 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.

980 
WWUS83 KMPX 041516 AAA
SPSMPX

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1016 AM CDT MON AUG 4 2014

MNZ091-092-041600-
FARIBAULT-MARTIN-
1016 AM CDT MON AUG 4 2014

...THUNDERSTORMS WITH LOCALLY HEAVY RAIN OVER WESTERN FARIBAULT AND 
EASTERN MARTIN COUNTIES THROUGH 1100 AM CDT...

AT 1010 AM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG 
THUNDERSTORMS OVER FAIRMONT AND GRANADA. THE STORMS WERE MOVING 
SOUTHEAST AT 10 MPH.

PEA SIZE HAIL AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. 
IN ADDITION...RAINFALL AMOUNTS UP TO AN INCH MAY OCCUR WITH THESE 
STORMS AS WELL CAUSING PONDING OF WATER ON ROADWAYS. 

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  FAIRMONT.
  HUNTLEY.
  GUCKEEN.
  EAST CHAIN.
  ELMORE.

LAT...LON 4350 9403 4350 9444 4365 9456 4376 9419
TIME...MOT...LOC 1511Z 321DEG 10KT 4361 9437

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 9:14 PM CDTSpecial Weather StatementMPXRamsey61 min
Aug 3, 10:11 PM CDTSpecial Weather StatementMPXWashington64 min
Aug 3, 10:21 PM CDTSpecial Weather StatementMPXGoodhue54 min
Aug 4, 10:14 AM CDTSpecial Weather StatementMPXMartin46 min
Aug 4, 10:59 AM CDTSpecial Weather StatementMPXFaribault46 min
Aug 4, 4:19 PM CDTSpecial Weather StatementMPXChippewa41 min
Aug 4, 5:36 PM CDTSpecial Weather StatementMPXEau Claire114 min

Nearby

Special Weather Statements in Minnesota, 2014Every special weather statement in 2014

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.