Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 177, NWS Twin Cities, MN

July 23, 20114 counties in Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 23, 2011, 10:29 PM CDT for 4 counties in 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
Jul 23, 2011, 10:29 PM CDT (03:29 UTC)
Expired
Jul 23, 2011, 11:15 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 Barron County, WI, Chippewa County, WI, Dunn County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 157 km from the middle of the area, began a volume at 03:29 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
Jul 23, 10:57 PM CDTTSTM WND DMG7 S Island Lake, WISCATTERED TREES DOWNED IN THE AREA. ESTIMATED TIME AND LOCATION.

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 00:00Z, 3.5 hours before the alert went out and 175 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 2011-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2128 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 2011-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
2128 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
814 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
2.0
Supercell composite
11.7

Open this sounding in Storm Lab

The text

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

871 
WUUS53 KMPX 240329
SVRMPX
WIC005-017-033-107-240415-
/O.NEW.KMPX.SV.W.0177.110724T0329Z-110724T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1029 PM CDT SAT JUL 23 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BARRON COUNTY IN NORTHWEST WISCONSIN...
  NORTHERN CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHEASTERN DUNN COUNTY IN WEST CENTRAL WISCONSIN...
  SOUTHWESTERN RUSK COUNTY IN NORTHWEST WISCONSIN...

* UNTIL 1115 PM CDT

* AT 1027 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  SAND CREEK TO 5 MILES NORTHEAST OF ISLAND LAKE...AND MOVING EAST AT
  35 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  SAND CREEK...
  CHETEK...
  WEYERHAEUSER...
  ISLAND LAKE...
  NEW AUBURN...
  BLOOMER...
  EAGLETON...
  HOLCOMBE...
  JIM FALLS...
  CORNELL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4529 9184 4546 9143 4533 9099 4509 9105
      4503 9128 4507 9162
TIME...MOT...LOC 0329Z 282DEG 32KT 4523 9166 4537 9126
WIND...HAIL 60MPH 1.00IN

$$
3 follow-up statements
995 
WWUS53 KMPX 240344
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1044 PM CDT SAT JUL 23 2011

WIC005-017-033-107-240415-
/O.CON.KMPX.SV.W.0177.000000T0000Z-110724T0415Z/
BARRON WI-CHIPPEWA WI-DUNN WI-RUSK WI-
1044 PM CDT SAT JUL 23 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
RUSK...NORTHEASTERN DUNN...NORTHERN CHIPPEWA AND SOUTHEASTERN BARRON
COUNTIES UNTIL 1115 PM CDT...

AT 1044 PM CDT...NATIONAL WEATHER SERVICE 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 SAND CREEK TO ISLAND LAKE...MOVING EAST
AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  NEW AUBURN...BLOOMER...HOLCOMBE...EAGLETON...CORNELL AND JIM FALLS.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

&&

LAT...LON 4527 9182 4546 9143 4533 9099 4509 9105
      4503 9128 4507 9162
TIME...MOT...LOC 0344Z 282DEG 31KT 4518 9166 4532 9126
WIND...HAIL 70MPH 1.00IN

$$
559 
WWUS53 KMPX 240351
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1051 PM CDT SAT JUL 23 2011

WIC005-017-033-107-240415-
/O.CON.KMPX.SV.W.0177.000000T0000Z-110724T0415Z/
BARRON WI-CHIPPEWA WI-DUNN WI-RUSK WI-
1051 PM CDT SAT JUL 23 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
RUSK...NORTHEASTERN DUNN...NORTHERN CHIPPEWA AND SOUTHEASTERN BARRON
COUNTIES UNTIL 1115 PM CDT...

AT 1052 PM CDT...NATIONAL WEATHER SERVICE 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 SAND CREEK TO 7 MILES EAST OF ISLAND
LAKE...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BLOOMER...HOLCOMBE...CORNELL...EAGLETON AND JIM FALLS.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

&&

LAT...LON 4527 9182 4546 9143 4533 9099 4509 9105
      4503 9128 4507 9162
TIME...MOT...LOC 0352Z 297DEG 25KT 4516 9161 4530 9120
WIND...HAIL 70MPH 1.00IN

$$
493 
WWUS53 KMPX 240400
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1100 PM CDT SAT JUL 23 2011

WIC005-033-240415-
/O.CAN.KMPX.SV.W.0177.000000T0000Z-110724T0415Z/
BARRON WI-DUNN WI-
1100 PM CDT SAT JUL 23 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DUNN AND
SOUTHEASTERN BARRON COUNTIES IS CANCELLED...

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

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

LAT...LON 4509 9105 4503 9128 4505 9148 4517 9165
      4521 9159 4521 9155 4524 9154 4538 9134
      4527 9101
TIME...MOT...LOC 0400Z 297DEG 25KT 4512 9155 4526 9114

$$

WIC017-107-240415-
/O.CON.KMPX.SV.W.0177.000000T0000Z-110724T0415Z/
CHIPPEWA WI-RUSK WI-
1100 PM CDT SAT JUL 23 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
RUSK AND NORTHERN CHIPPEWA COUNTIES UNTIL 1115 PM CDT...

AT 1100 PM CDT...NATIONAL WEATHER SERVICE 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 NEW AUBURN TO HOLCOMBE...MOVING SOUTHEAST
AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BLOOMER...HOLCOMBE...CORNELL...EAGLETON AND JIM FALLS.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

&&

LAT...LON 4509 9105 4503 9128 4505 9148 4517 9165
      4521 9159 4521 9155 4524 9154 4538 9134
      4527 9101
TIME...MOT...LOC 0400Z 297DEG 25KT 4512 9155 4526 9114
WIND...HAIL 70MPH 1.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 10:40 PM CDTAreal Flood AdvisoryMPXBarron, Chippewa, Dunn, Rusk2 hr
Jul 23, 10:40 PM CDTSpecial Weather StatementMPXPierce50 min
Jul 23, 10:42 PM CDTSevere Thunderstorm WarningMPXPierce48 min
Jul 23, 10:59 PM CDTSevere Thunderstorm WarningMPXChippewa61 min
Jul 23, 11:14 PM CDTSevere Thunderstorm WarningMPXSaint Croix24 min
Jul 23, 11:22 PM CDTSevere Thunderstorm WarningMPXDunn53 min
Jul 23, 11:50 PM CDTSevere Thunderstorm WarningMPXEau Claire40 min
Jul 24, 12:10 AM CDTSpecial Weather StatementMPXEau Claire50 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2011Every severe thunderstorm warning in 2011

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.