Alert archive / Wisconsin / Special Weather Statements in 2021

Special Weather Statement, NWS Twin Cities, MN

August 26, 2021Chippewa County, Dunn County, Eau Claire County, Wisconsin

NWS Twin Cities, MN issued this special weather statement at Aug 26, 2021, 3:47 PM CDT for Chippewa County, Dunn County, Eau Claire County, Wisconsin. It was in force for 58 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 26, 2021, 3:47 PM CDT (20:47 UTC)
Expired
Aug 26, 2021, 4:45 PM CDT
In force
58 min
Issued by
NWS Twin Cities, MN
Hail
0.00 in
Wind
40

Counties Chippewa County, WI, Dunn County, WI, Eau Claire County, WI

The radar

The La Crosse radar (KARX), 121 km from the middle of the area, began a volume at 20:48 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.

What was reported inside it

TimeReportWhereRemark
Aug 26, 3:50 PM CDTTSTM WND GST 421 W Cedar Falls, WIHEAVY RAIN COINCIDING WITH THE GUSTY WINDS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 159 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 2021-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1566 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

870 
WWUS83 KMPX 262047
SPSMPX

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
347 PM CDT Thu Aug 26 2021
 
WIZ025-027-028-262145-
Chippewa WI-Dunn WI-Eau Claire WI-
347 PM CDT Thu Aug 26 2021

...A strong thunderstorm will impact portions of eastern Dunn,
Chippewa and northern Eau Claire Counties through 445 PM CDT...

At 346 PM CDT, Doppler radar was tracking a strong thunderstorm over
Menomonie, moving east at 50 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

This strong thunderstorm will be near...
  Colfax and Elk Mound around 400 PM CDT.

Other locations in the path of this storm include Lake Hallie,
Chippewa Falls, Lake Wissota, Cadott, Cornell, Boyd and Stanley.

This includes the following highways...
 Interstate 94 in Wisconsin between mile markers 38 and 77.
 U.S. Highway 53 between mile markers 86 and 114.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4468 9200 4504 9203 4527 9093 4471 9093
TIME...MOT...LOC 2046Z 257DEG 44KT 4492 9192 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

PEM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 10:39 AM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine51 min
Aug 26, 10:54 AM CDTSpecial Weather StatementMPXStevens36 min
Aug 26, 11:05 AM CDTSevere Thunderstorm WarningMPXChippewa, Swift40 min
Aug 26, 11:32 AM CDTSpecial Weather StatementMPXChippewa28 min
Aug 26, 11:37 AM CDTSevere Thunderstorm Warning Considerable damage threatMPXChippewa, Kandiyohi, Swift23 min
Aug 26, 12:08 PM CDTSpecial Weather StatementMPXKandiyohi, Meeker22 min
Aug 26, 12:22 PM CDTSpecial Weather StatementMPXRenville23 min
Aug 26, 12:25 PM CDTWind AdvisoryMPXBenton, Chippewa, Douglas, Kandiyohi, Lac qui Parle, Meeker and 9 more3 hr
Aug 26, 12:52 PM CDTSpecial Weather StatementMPXMcLeod23 min
Aug 26, 1:15 PM CDTSpecial Weather StatementMPXCarver30 min
Aug 26, 1:44 PM CDTSpecial Weather StatementMPXCarver, Hennepin31 min
Aug 26, 1:47 PM CDTSevere Thunderstorm WarningMPXCarver, Hennepin28 min
Aug 26, 2:05 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey, Scott, Washington40 min
Aug 26, 2:14 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin, Ramsey46 min
Aug 26, 2:44 PM CDTSevere Thunderstorm WarningMPXWashington46 min
Aug 26, 2:51 PM CDTSpecial Weather StatementMPXWashington24 min
Aug 26, 5:44 PM CDTFlash Flood WatchMPXAnoka, Benton, Blue Earth, Brown, Carver, Dakota and 22 more13 hr
Aug 26, 3:21 PM CDTSpecial Weather StatementMPXDunn, Pierce, Saint Croix24 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.