Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 68, NWS Twin Cities, MN

May 30, 20114 counties in Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 2011, 2:45 PM CDT for 4 counties in Wisconsin. It was in force for 35 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: May 30, 2011, 2:45 PM CDT (19:45 UTC)
Expired: May 30, 2011, 3:20 PM CDT
In force: 35 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 65.0 mph

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

The radar

The La Crosse radar (KARX), 166 km from the middle of the area, began a volume at 19:46 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.8 hours before the alert went out and 286 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 25 J/kg
Mixed-layer CIN: -800 J/kg
Mixed-layer LCL: 588 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 188 m²/s²
0-3 km storm-relative helicity: 326 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.

566 
WUUS53 KMPX 301945
SVRMPX
WIC005-017-033-107-302045-
/O.NEW.KMPX.SV.W.0068.110530T1945Z-110530T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
245 PM CDT MON MAY 30 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 345 PM CDT

* AT 241 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 65 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5
  MILES EAST OF CONNORSVILLE TO MENOMONIE...AND MOVING NORTHEAST AT
  45 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  ELK MOUND...
  PRAIRIE FARM...
  RIDGELAND...
  COLFAX...
  HILLSDALE...
  SAND CREEK...
  CHETEK...
  BLOOMER...
  CAMERON...
  NEW AUBURN...
  EAGLETON...
  CANTON...
  JIM FALLS...
  ISLAND LAKE...

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.

&&

LAT...LON 4558 9159 4547 9113 4514 9094 4478 9194
      4519 9211
TIME...MOT...LOC 1945Z 231DEG 40KT 4516 9194 4496 9182
WIND...HAIL 65MPH 1.00IN

$$

TRH

3 follow-up statements

574 
WWUS53 KMPX 302005
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
305 PM CDT MON MAY 30 2011

WIC005-017-033-107-302045-
/O.CON.KMPX.SV.W.0068.000000T0000Z-110530T2045Z/
BARRON WI-RUSK WI-CHIPPEWA WI-DUNN WI-
305 PM CDT MON MAY 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
DUNN...NORTHERN CHIPPEWA...SOUTHWESTERN RUSK AND SOUTHEASTERN BARRON
COUNTIES UNTIL 345 PM CDT...

AT 300 PM CDT...NATIONAL WEATHER SERVICE 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 CHETEK TO NEW AUBURN TO COLFAX...MOVING
NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  BLOOMER...EAGLETON...WEYERHAEUSER...ISLAND LAKE...BRUCE...CORNELL
  AND HOLCOMBE.

LAT...LON 4496 9165 4499 9182 4521 9183 4555 9146
      4547 9113 4514 9094
TIME...MOT...LOC 2005Z 230DEG 46KT 4534 9159 4523 9155
          4506 9160
WIND...HAIL 60MPH 1.00IN

$$

TRH

103 
WWUS53 KMPX 302012
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
312 PM CDT MON MAY 30 2011

WIC005-033-302027-
/O.CAN.KMPX.SV.W.0068.000000T0000Z-110530T2045Z/
BARRON WI-DUNN WI-
312 PM CDT MON MAY 30 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.

LAT...LON 4507 9163 4516 9163 4521 9155 4545 9154
      4551 9130 4547 9113 4523 9100
TIME...MOT...LOC 2012Z 230DEG 46KT 4539 9149 4528 9145
          4511 9150

$$

WIC017-107-302045-
/O.CON.KMPX.SV.W.0068.000000T0000Z-110530T2045Z/
RUSK WI-CHIPPEWA WI-
312 PM CDT MON MAY 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
CHIPPEWA AND SOUTHWESTERN RUSK COUNTIES UNTIL 345 PM CDT...

AT 309 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7
MILES SOUTHWEST OF WEYERHAEUSER TO 6 MILES NORTHEAST OF NEW AUBURN TO
BLOOMER...MOVING NORTHEAST AT 55 MPH. PENNY SIZE HAIL MAY ALSO
ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  WEYERHAEUSER...ISLAND LAKE...BRUCE AND HOLCOMBE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4507 9163 4516 9163 4521 9155 4545 9154
      4551 9130 4547 9113 4523 9100
TIME...MOT...LOC 2012Z 230DEG 46KT 4539 9149 4528 9145
          4511 9150
WIND...HAIL 60MPH 0.75IN

$$

TRH

364 
WWUS53 KMPX 302020
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
320 PM CDT MON MAY 30 2011

WIC017-107-302034-
/O.CAN.KMPX.SV.W.0068.000000T0000Z-110530T2045Z/
RUSK WI-CHIPPEWA WI-
320 PM CDT MON MAY 30 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CHIPPEWA AND
SOUTHWESTERN RUSK COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY...HOWEVER GUSTY WINDS AND PEA SIZED HAIL ARE STILL POSSIBLE 
WITH THESE THUNDERSTORMS.

LAT...LON 4507 9163 4516 9163 4521 9155 4545 9154
      4551 9130 4547 9113 4523 9100
TIME...MOT...LOC 2019Z 230DEG 46KT 4544 9139 4533 9135
          4516 9140

$$

TRH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 2:43 AM CDT	Special Weather Statement	MPX	Barron	47 min
May 30, 10:07 AM CDT	Special Weather Statement	MPX	Polk	38 min
May 30, 10:25 AM CDT	Severe Thunderstorm Warning	MPX	Polk, Saint Croix	50 min
May 30, 10:52 AM CDT	Special Weather Statement	MPX	Polk	38 min
May 30, 11:45 AM CDT	Special Weather Statement	MPX	Barron	30 min
May 30, 12:47 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pierce, Saint Croix	27 min
May 30, 12:56 PM CDT	Severe Thunderstorm Warning	MPX	Pierce, Saint Croix	34 min
May 30, 1:25 PM CDT	Severe Thunderstorm Warning	MPX	Pepin, Pierce	35 min
May 30, 1:34 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn, Polk, Saint Croix	26 min
May 30, 2:16 PM CDT	Special Weather Statement	MPX	Dunn	44 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2011 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.