Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 67, NWS Twin Cities, MN

June 11, 2017Eau Claire County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2017, 9:45 PM CDT for Eau Claire County, Wisconsin. It was in force for 45 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 11, 2017, 9:45 PM CDT (02:45 UTC)
Expired
Jun 11, 2017, 10:30 PM CDT
In force
45 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Eau Claire County, WI

The radar

The La Crosse radar (KARX), 96 km from the middle of the area, began a volume at 02:46 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, 2.8 hours before the alert went out and 193 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 2017-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 677 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 00:00Z on 2017-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
677 J/kg
Mixed-layer CIN
-240 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

297 
WUUS53 KMPX 120245
SVRMPX
WIC035-120330-
/O.NEW.KMPX.SV.W.0067.170612T0245Z-170612T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
945 PM CDT SUN JUN 11 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Eau Claire County in west central Wisconsin...

* Until 1030 PM CDT

* At 944 PM CDT, a severe thunderstorm was located over Eleva, or 9
  miles east of Mondovi, moving east at 50 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,
  Fall Creek around 1000 PM CDT. 
  Augusta around 1005 PM CDT. 

Other locations impacted by this severe thunderstorm include Lake Eau
Claire County Park, Foster, Brackett and Allen.

This includes Interstate 94 in Wisconsin between mile markers 74 and
87.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4459 9103 4460 9160 4467 9163 4486 9100
      4485 9092 4461 9092
TIME...MOT...LOC 0244Z 251DEG 46KT 4462 9149 

HAIL...1.00IN
WIND...60MPH
 
$$

BORGHOFF
3 follow-up statements
945 
WWUS53 KMPX 120300
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1000 PM CDT SUN JUN 11 2017

WIC035-120330-
/O.CON.KMPX.SV.W.0067.000000T0000Z-170612T0330Z/
Eau Claire WI-
1000 PM CDT SUN JUN 11 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR EASTERN EAU CLAIRE COUNTY...

At 1000 PM CDT, a severe thunderstorm was located near Fall Creek, or
15 miles southeast of Eau Claire, moving east at 50 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 storm will be near...
  Augusta around 1005 PM CDT. 

Other locations impacted by this severe thunderstorm include Lake Eau
Claire County Park, Foster, Brackett and Allen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4460 9145 4473 9144 4486 9100 4485 9092
      4461 9093 4460 9097
TIME...MOT...LOC 0300Z 249DEG 45KT 4470 9123 

HAIL...1.00IN
WIND...60MPH
 
$$

BORGHOFF
446 
WWUS53 KMPX 120316
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1016 PM CDT SUN JUN 11 2017

WIC035-120330-
/O.CON.KMPX.SV.W.0067.000000T0000Z-170612T0330Z/
Eau Claire WI-
1016 PM CDT SUN JUN 11 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR EASTERN EAU CLAIRE COUNTY...

At 1016 PM CDT, a severe thunderstorm was located near Lake Eau
Claire County Park, or 21 miles east of Eau Claire, moving east at 40
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 remain over mainly rural areas of 
eastern Eau Claire County, including the following locations: Lake 
Eau Claire County Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4460 9124 4481 9117 4482 9114 4485 9095
      4485 9092 4461 9093 4460 9097
TIME...MOT...LOC 0316Z 250DEG 34KT 4475 9104 

HAIL...1.00IN
WIND...60MPH
 
$$

BORGHOFF
066 
WWUS53 KMPX 120327
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1027 PM CDT SUN JUN 11 2017

WIC035-120337-
/O.EXP.KMPX.SV.W.0067.000000T0000Z-170612T0330Z/
Eau Claire WI-
1027 PM CDT SUN JUN 11 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN EAU CLAIRE COUNTY WILL
EXPIRE AT 1030 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4460 9124 4481 9117 4482 9114 4485 9095
      4485 9092 4461 9093 4460 9097
TIME...MOT...LOC 0327Z 251DEG 46KT 4479 9086 

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 9:01 PM CDTSpecial Weather StatementMPXRusk29 min
Jun 11, 10:59 PM CDTDense Fog AdvisoryMPXBarron, Polk, Saint Croix9 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2017Every severe thunderstorm warning in 2017

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.