Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 93, NWS Twin Cities, MN

June 28, 2017Dunn County, Pepin County, Pierce County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 28, 2017, 4:59 PM CDT for Dunn County, Pepin County, Pierce County, Wisconsin. It was in force for 46 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
Jun 28, 2017, 4:59 PM CDT (21:59 UTC)
Expired
Jun 28, 2017, 5:45 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Possible
Hail
1.5 in
Wind
60.0 mph

Counties Dunn County, WI, Pepin County, WI, Pierce County, WI

The radar

The La Crosse radar (KARX), 105 km from the middle of the area, began a volume at 22:01 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
Jun 28, 5:12 PM CDTHAIL 0.881 W Durand, WI

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
Jun 28, 4:09 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.0 hours before the alert went out and 138 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 2017-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 2017-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 511 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
6 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
537 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
511 m²/s²
0-3 km storm-relative helicity
568 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

546 
WUUS53 KMPX 282159
SVRMPX
WIC033-091-093-282245-
/O.NEW.KMPX.SV.W.0093.170628T2159Z-170628T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
459 PM CDT WED JUN 28 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Pepin County in west central Wisconsin...
  East central Pierce County in west central Wisconsin...
  Southern Dunn County in west central Wisconsin...

* Until 545 PM CDT

* At 458 PM CDT, a severe thunderstorm was located near Arkansaw, or
  19 miles southwest of Menomonie, moving east at 30 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees. 

* This severe thunderstorm will be near,
  Eau Galle around 505 PM CDT. 
  Durand around 515 PM CDT. 

Other locations impacted by this severe thunderstorm include Arkansaw
and Porcupine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1000 PM CDT for west central
Wisconsin.

LAT...LON 4459 9167 4460 9200 4457 9204 4459 9219
      4475 9216 4471 9165 4460 9165
TIME...MOT...LOC 2158Z 281DEG 25KT 4466 9211 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$
1 follow-up statement
866 
WWUS53 KMPX 282215
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
515 PM CDT WED JUN 28 2017

WIC093-282225-
/O.CAN.KMPX.SV.W.0093.000000T0000Z-170628T2245Z/
Pierce WI-
515 PM CDT WED JUN 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PIERCE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 1000 PM CDT for west central
Wisconsin.

LAT...LON 4459 9168 4460 9200 4457 9204 4458 9213
      4459 9214 4466 9214 4474 9208 4471 9165
      4460 9165
TIME...MOT...LOC 2215Z 281DEG 25KT 4464 9195 

$$

WIC033-091-282245-
/O.CON.KMPX.SV.W.0093.000000T0000Z-170628T2245Z/
Pepin WI-Dunn WI-
515 PM CDT WED JUN 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR PEPIN AND SOUTHEASTERN DUNN COUNTIES...

At 515 PM CDT, a severe thunderstorm was located over Durand, or 14
miles west of Mondovi, moving east at 30 mph.

HAZARD...60 mph wind gusts and half dollar 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 Pepin
and southeastern Dunn Counties, including the following locations:
Arkansaw and Porcupine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1000 PM CDT for west central
Wisconsin.

LAT...LON 4459 9168 4460 9200 4457 9204 4458 9213
      4459 9214 4466 9214 4474 9208 4471 9165
      4460 9165
TIME...MOT...LOC 2215Z 281DEG 25KT 4464 9195 

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 2:41 PM CDTSpecial Weather StatementMPXPierce34 min
Jun 28, 4:06 PM CDTSevere Thunderstorm WarningMPXPierce24 min
Jun 28, 4:12 PM CDTSpecial Weather StatementMPXSaint Croix33 min
Jun 28, 4:23 PM CDTSevere Thunderstorm WarningMPXPierce, Saint Croix40 min
Jun 28, 4:30 PM CDTTornado WarningMPXPierce, Saint Croix32 min
Jun 28, 5:12 PM CDTSpecial Weather StatementMPXSaint Croix63 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.