Alert archive / Minnesota / Special Weather Statements in 2015

Special Weather Statement, NWS La Crosse, WI

July 20, 2015Fillmore County, Houston County, Minnesota

NWS La Crosse, WI issued this special weather statement at Jul 20, 2015, 8:21 AM CDT for Fillmore County, Houston County, Minnesota. It was in force for 39 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 20, 2015, 8:21 AM CDT (13:21 UTC)
Expired
Jul 20, 2015, 9:00 AM CDT
In force
39 min
Issued by
NWS La Crosse, WI

Counties Fillmore County, MN, Houston County, MN

The radar

The La Crosse radar (KARX), 65 km from the middle of the area, began a volume at 13:23 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, 1.4 hours before the alert went out and 192 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 2015-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2015-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1446 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
18 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.

621 
WWUS83 KARX 201321
SPSARX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
821 AM CDT MON JUL 20 2015
 
IAZ009-010-MNZ095-096-201400-
WINNESHIEK-HOWARD-HOUSTON-FILLMORE-
821 AM CDT MON JUL 20 2015

...A LINE OF THUNDERSTORMS WILL AFFECT NORTHERN HOWARD...NORTHERN 
WINNESHIEK...SOUTHEASTERN FILLMORE AND SOUTHERN HOUSTON COUNTIES 
WITH GUSTY WINDS...

AT 819 AM CDT...A LINE OF THUNDERSTORMS EXTENDED FROM NEAR LANESBORO 
TO NEAR RICEVILLE...AND MOVING EAST AT 40 MPH.

WINDS UP TO 40 MPH ARE POSSIBLE WITH THESE STORMS. A WIND GUST OF 36 
MPH WAS REPORTED AT THE PRESTON AIRPORT. THESE WIND GUSTS COULD MAKE 
TRAVEL DIFFICULT FOR HIGH PROFILE VEHICLES.

LOCATIONS IMPACTED BY 9 AM INCLUDE...
CRESCO...CALEDONIA...PRESTON...SPRING GROVE...HARMONY...MABEL... 
LANESBORO...LIME SPRINGS...RUSHFORD VILLAGE... HIGHLAND... 
WILMINGTON...CHERRY GROVE...BRISTOL...NEWBURG AND AMHERST.

LAT...LON 4379 9194 4370 9129 4327 9195 4345 9255
TIME...MOT...LOC 1319Z 277DEG 34KT 4374 9193 4342 9249 
$$

AJ

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.