Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS La Crosse, WI

July 6, 2021Mower County, Minnesota

NWS La Crosse, WI issued this special weather statement at Jul 6, 2021, 8:49 PM CDT for Mower County, Minnesota. It was in force for 26 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, 2021, 8:49 PM CDT (01:49 UTC)
Expired
Jul 6, 2021, 9:15 PM CDT
In force
26 min
Issued by
NWS La Crosse, WI

County Mower County, MN

The radar

The La Crosse radar (KARX), 146 km from the middle of the area, began a volume at 01:51 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, 1.8 hours before the alert went out and 157 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 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 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 00:00Z on 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
46 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
677 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

310 
WWUS83 KARX 070149
SPSARX

Special Weather Statement
National Weather Service La Crosse WI
849 PM CDT Tue Jul 6 2021

IAZ008-MNZ094-070215-
Mitchell-Mower-
849 PM CDT Tue Jul 6 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN MITCHELL AND
SOUTHWESTERN MOWER COUNTIES...

At 848 PM CDT, a strong thunderstorm was located near Northwood,
moving east at 25 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
St. Ansgar, Lyle, Stacyville, Rose Creek, Carpenter, and Toeterville.

LAT...LON 4361 9305 4365 9275 4338 9273 4339 9302
      4350 9303 4350 9305
TIME...MOT...LOC 0148Z 266DEG 24KT 4350 9315 

$$

Skow

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 1:08 AM CDTSpecial Weather StatementARXAllamakee, Clayton, Fayette52 min

Nearby

Special Weather Statements in Minnesota, 2021Every special weather statement in 2021

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.