Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 194, NWS Twin Cities, MN

June 19, 20124 counties in Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 19, 2012, 5:09 AM CDT for 4 counties in Wisconsin. It was in force for 66 min. 3 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
Jun 19, 2012, 5:09 AM CDT (10:09 UTC)
Expired
Jun 19, 2012, 6:15 AM CDT
In force
66 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

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

The radar

The La Crosse radar (KARX), 104 km from the middle of the area, began a volume at 10:11 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 19, 5:40 AM CDTTSTM WND DMG2 Se Elk Mound, WISMALL TREE DOWN. TIME ESTIMATED.
Jun 19, 5:49 AM CDTTSTM WND GST 543 N Eau Claire, WI
Jun 19, 5:50 AM CDTTSTM WND DMGEau Claire, WIPOWERLINES DOWN. TIME ESTIMATED.

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 19, 3:25 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 10.2 hours before the alert went out and 178 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 2012-06-19Temperature 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 00:00Z on 2012-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
2661 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

689 
WUUS53 KMPX 191009
SVRMPX
WIC017-033-035-091-191115-
/O.NEW.KMPX.SV.W.0194.120619T1009Z-120619T1115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
509 AM CDT TUE JUN 19 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  EASTERN DUNN COUNTY IN WEST CENTRAL WISCONSIN...
  EAU CLAIRE COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHEASTERN PEPIN COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 615 AM CDT

* AT 504 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE WINDS IN
  EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM HERSEY TO PLUM CITY TO LAKE CITY...AND MOVING EAST AT 60 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  EAU CLAIRE...
  CHIPPEWA FALLS...
  ROCK FALLS...
  CARYVILLE...
  COLFAX...
  ELK MOUND...
  SAND CREEK...
  NEW AUBURN...
  ALTOONA...
  LAKE HALLIE...
  BLOOMER...
  BRACKETT...
  EAGLETON...
  FALL CREEK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4459 9092 4459 9113 4458 9114 4459 9146
      4458 9147 4459 9199 4460 9200 4473 9179
      4515 9189 4529 9092 4526 9091 4460 9091
TIME...MOT...LOC 1009Z 261DEG 51KT 4500 9214 4469 9205
          4445 9218
WIND...HAIL 70MPH 1.00IN

$$

JRB
2 follow-up statements
415 
WWUS53 KMPX 191045
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
545 AM CDT TUE JUN 19 2012

WIC033-091-191100-
/O.CAN.KMPX.SV.W.0194.000000T0000Z-120619T1115Z/
DUNN WI-PEPIN WI-
545 AM CDT TUE JUN 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PEPIN AND EASTERN
DUNN COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4459 9092 4459 9113 4458 9114 4459 9146
      4458 9147 4459 9163 4478 9164 4519 9163
      4529 9092 4526 9091 4460 9091
TIME...MOT...LOC 1045Z 261DEG 51KT 4499 9140 4468 9132
          4445 9147

$$

WIC017-035-191115-
/O.CON.KMPX.SV.W.0194.000000T0000Z-120619T1115Z/
CHIPPEWA WI-EAU CLAIRE WI-
545 AM CDT TUE JUN 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAU CLAIRE AND
CHIPPEWA COUNTIES IN WEST CENTRAL WISCONSIN UNTIL 615 AM CDT...

AT 541 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES NORTHWEST OF CHIPPEWA FALLS TO BRACKETT TO 8
MILES NORTHWEST OF INDEPENDENCE...MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  FALL CREEK...LAKE WISSOTA...BATEMAN...JIM FALLS...LUDINGTON...
  CADOTT...CORNELL...HOLCOMBE...BOYD...STANLEY...FAIRCHILD AND
  AUGUSTA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4459 9092 4459 9113 4458 9114 4459 9146
      4458 9147 4459 9163 4478 9164 4519 9163
      4529 9092 4526 9091 4460 9091
TIME...MOT...LOC 1045Z 261DEG 51KT 4499 9140 4468 9132
          4445 9147
WIND...HAIL 60MPH 1.00IN

$$

JRB
677 
WWUS53 KMPX 191110
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
610 AM CDT TUE JUN 19 2012

WIC017-035-191125-
/O.EXP.KMPX.SV.W.0194.000000T0000Z-120619T1115Z/
CHIPPEWA WI-EAU CLAIRE WI-
610 AM CDT TUE JUN 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAU CLAIRE AND CHIPPEWA
COUNTIES IN WEST CENTRAL WISCONSIN WILL EXPIRE AT 615 AM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM CDT.

LAT...LON 4459 9092 4459 9113 4458 9114 4459 9146
      4458 9147 4459 9163 4478 9164 4519 9163
      4529 9092 4526 9091 4460 9091
TIME...MOT...LOC 1110Z 261DEG 51KT 4496 9087 4464 9081
          4442 9097

$$

JRB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 3:19 AM CDTSpecial Weather StatementMPXChippewa, Dunn, Saint Croix41 min
Jun 19, 4:26 AM CDTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce, Saint Croix64 min
Jun 19, 4:30 AM CDTSpecial Weather StatementMPXChippewa45 min
Jun 19, 4:38 AM CDTSevere Thunderstorm WarningMPXPepin52 min
Jun 19, 5:53 AM CDTSpecial Weather StatementMPXSaint Croix37 min
Jun 19, 6:11 AM CDTSevere Thunderstorm WarningMPXSaint Croix34 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012Every severe thunderstorm warning in 2012

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.