Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 166, NWS Twin Cities, MN

August 11, 2023Chippewa County, Dunn County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 11, 2023, 5:14 PM CDT for Chippewa County, Dunn County, Rusk County, Wisconsin. It was in force for 46 min. 4 reports 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 11, 2023, 5:14 PM CDT (22:14 UTC)
Expired
Aug 11, 2023, 6:00 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chippewa County, WI, Dunn County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 165 km from the middle of the area, began a volume at 22:15 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 11, 5:30 PM CDTTSTM WND DMGBloomer, WIA few medium to large trees down and large branches snapped, pictures via facebook comments. Also up to nickel sized hail.
Aug 11, 5:30 PM CDTTSTM WND DMGBloomer, WICorrects previous tstm wnd dmg report from Bloomer. A few medium to large trees down and large branches snapped, pictures via facebook comments. Also up to nickel sized hail. Corrected for report source.
Aug 11, 5:30 PM CDTHAIL 0.88Bloomer, WIPicture via facebook comments.
Aug 11, 5:30 PM CDTHAIL 0.88Bloomer, WICorrects previous hail report from Bloomer. Picture via facebook comments. Corrected for report source.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 11, 2:28 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.2 hours before the alert went out and 173 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 2023-08-11Temperature 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 2023-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1196 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

826 
WUUS53 KMPX 112214
SVRMPX
WIC017-033-107-112300-
/O.NEW.KMPX.SV.W.0166.230811T2214Z-230811T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
514 PM CDT Fri Aug 11 2023

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Western Rusk County in northwestern Wisconsin...
  Northeastern Dunn County in west central Wisconsin...
  Central Chippewa County in west central Wisconsin...

* Until 600 PM CDT.

* At 514 PM CDT, a severe thunderstorm was located over New Auburn,
  or 20 miles south of Rice Lake, moving southeast at 45 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Bloomer around 525 PM CDT.

Other locations in the path of this severe thunderstorm include
Cornell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

&&

LAT...LON 4496 9134 4512 9196 4520 9192 4521 9154
      4558 9154 4560 9155 4563 9154 4564 9109
      4504 9110
TIME...MOT...LOC 2214Z 295DEG 38KT 4520 9162 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ETA
2 follow-up statements
359 
WWUS53 KMPX 112239
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
539 PM CDT Fri Aug 11 2023

WIC017-033-107-112300-
/O.CON.KMPX.SV.W.0166.000000T0000Z-230811T2300Z/
Rusk WI-Dunn WI-Chippewa WI-
539 PM CDT Fri Aug 11 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR SOUTH CENTRAL RUSK...NORTHEASTERN DUNN AND CENTRAL CHIPPEWA
COUNTIES...

At 539 PM CDT, a severe thunderstorm was located 8 miles east of
Bloomer, or 21 miles northeast of Eau Claire, moving southeast at 45
mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
  Cornell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4496 9133 4512 9194 4521 9152 4545 9125
      4543 9109 4504 9110
TIME...MOT...LOC 2239Z 295DEG 38KT 4510 9131 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
512 
WWUS53 KMPX 112254
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
554 PM CDT Fri Aug 11 2023

WIC017-033-107-112303-
/O.EXP.KMPX.SV.W.0166.000000T0000Z-230811T2300Z/
Rusk WI-Dunn WI-Chippewa WI-
554 PM CDT Fri Aug 11 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL RUSK...
NORTHEASTERN DUNN AND CENTRAL CHIPPEWA COUNTIES WILL EXPIRE AT 600 PM
CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
northwestern and west central Wisconsin.

LAT...LON 4496 9133 4512 9194 4521 9152 4545 9125
      4543 9109 4504 9110
TIME...MOT...LOC 2253Z 295DEG 38KT 4504 9113 

$$

ETA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 3:47 PM CDTSevere Thunderstorm WarningMPXPolk43 min
Aug 11, 4:22 PM CDTSevere Thunderstorm WarningMPXPolk, Saint Croix38 min
Aug 11, 4:29 PM CDTSevere Thunderstorm WarningMPXBarron, Polk61 min
Aug 11, 4:59 PM CDTSevere Thunderstorm WarningMPXDunn, Polk, Saint Croix31 min
Aug 11, 5:00 PM CDTSevere Thunderstorm Warning Considerable damage threatMPXSaint Croix60 min
Aug 11, 5:29 PM CDTSevere Thunderstorm Warning Considerable damage threatMPXPierce46 min
Aug 11, 5:32 PM CDTSevere Thunderstorm WarningMPXChippewa, Dunn, Eau Claire58 min
Aug 11, 5:52 PM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire38 min
Aug 11, 5:59 PM CDTSevere Thunderstorm WarningMPXPierce, Saint Croix46 min
Aug 11, 6:14 PM CDTSevere Thunderstorm WarningMPXDunn, Eau Claire, Pepin46 min
Aug 11, 6:20 PM CDTSevere Thunderstorm WarningMPXEau Claire40 min
Aug 11, 6:23 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin37 min
Aug 11, 6:34 PM CDTTornado WarningMPXPepin13 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2023Every severe thunderstorm warning in 2023

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.