Alert archive / Wisconsin / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

June 24, 2021Chippewa County, Wisconsin

NWS Twin Cities, MN issued this special weather statement at Jun 24, 2021, 2:33 PM CDT for Chippewa County, Wisconsin. It was in force for 42 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
Jun 24, 2021, 2:33 PM CDT (19:33 UTC)
Expired
Jun 24, 2021, 3:15 PM CDT
In force
42 min
Issued by
NWS Twin Cities, MN

County Chippewa County, WI

The radar

The La Crosse radar (KARX), 158 km from the middle of the area, began a volume at 19:34 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, 7.6 hours before the alert went out and 182 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 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1586 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 12:00Z on 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 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
1586 J/kg
Mixed-layer CIN
-257 J/kg
Mixed-layer LCL
1372 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

302 
WWUS83 KMPX 241933
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
233 PM CDT Thu Jun 24 2021

WIZ016-027-242015-
Chippewa-Rusk-
233 PM CDT Thu Jun 24 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN RUSK AND NORTH
CENTRAL CHIPPEWA COUNTIES...

At 233 PM CDT, a strong thunderstorm was located 8 miles northeast of
New Auburn, or 20 miles southwest of Ladysmith, moving east at 10
mph.

Winds in excess of 30 mph and half inch hail are possible with this
storm.

Locations impacted include...
Island Lake and Chippewa Moraine State Rec Area. 

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4512 9129 4525 9154 4535 9154 4534 9106
TIME...MOT...LOC 1933Z 284DEG 10KT 4527 9142 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 2:39 AM CDTSpecial Weather StatementMPXSherburne36 min
Jun 24, 3:37 AM CDTSpecial Weather StatementMPXBarron38 min
Jun 24, 3:43 AM CDTSevere Thunderstorm WarningMPXBarron31 min
Jun 24, 4:52 AM CDTSpecial Weather StatementMPXRusk38 min
Jun 24, 3:04 PM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Dunn41 min
Jun 24, 3:42 PM CDTSevere Thunderstorm WarningMPXChippewa48 min
Jun 24, 4:20 PM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire27 min

Nearby

Special Weather Statements in Wisconsin, 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.