Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 63, NWS Milwaukee, WI

June 6, 2011Sauk County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 6, 2011, 5:12 AM CDT for Sauk County, Wisconsin. It was in force for 48 min. 5 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 6, 2011, 5:12 AM CDT (10:12 UTC)
Expired: Jun 6, 2011, 6:00 AM CDT
In force: 48 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

County Sauk County, WI

The radar

The La Crosse radar (KARX), 102 km from the middle of the area, began a volume at 10:13 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

Time	Report	Where	Remark
Jun 6, 5:35 AM CDT	HAIL 0.25	1 S Reedsburg, WI
Jun 6, 5:40 AM CDT	HAIL 4.25	Loganville, WI	ESTIMATED HAIL STONE OF 4.25 INCHES BASED ON PICTURES RELAYED FROM WMTV-15 OF MADISON. A VIEWER IN LOGANVILLE TOOK THE PICTURES. TIME IS ESTIMATED BASED ON OTHER REPORTS IN SAUK COUNTY. THIS WOULD BE SOFTBALL SIZE HAIL.
Jun 6, 5:42 AM CDT	HAIL 2.5	4 W Reedsburg, WI	NEAR INTERSECTION OF THOMAS ROAD AND COUNTY HIGHWAY K.
Jun 6, 5:45 AM CDT	HAIL 4	1 S Reedsburg, WI	REPORT BASED ON PHOTO SUBMITTED TO NBC-15 MADISON. TIME ESTIMATED. SIZE ESTIMATED BASED ON SIZE OF ADULT HAND.
Jun 6, 6:00 AM CDT	HAIL 2.75	1 S North Freedom, 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.

Issued	Product	Office	Lasted
Jun 6, 2:09 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 10.2 hours before the alert went out and 189 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1924 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 237 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.

097 
WUUS53 KMKX 061012
SVRMKX
WIC111-061100-
/O.NEW.KMKX.SV.W.0063.110606T1012Z-110606T1100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
512 AM CDT MON JUN 6 2011

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL SAUK COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 600 AM CDT

* AT 508 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS STORM WAS LOCATED NEAR REEDSBURG...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  REEDSBURG...BARABOO...WISCONSIN DELLS AIRPORT...WEST BARABOO...
  DEVILS LAKE STATE PARK...LOGANVILLE...ROCK SPRINGS...NORTH FREEDOM
  AND DEVILS LAKE ST PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4362 9012 4349 8962 4327 8980 4344 9020
      4346 9020
TIME...MOT...LOC 1012Z 290DEG 23KT 4350 9005
WIND...HAIL <50MPH 1.50IN

$$

MBK

2 follow-up statements

436 
WWUS53 KMKX 061025
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
525 AM CDT MON JUN 6 2011

WIC111-061100-
/O.CON.KMKX.SV.W.0063.000000T0000Z-110606T1100Z/
SAUK WI-
525 AM CDT MON JUN 6 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL SAUK
COUNTY UNTIL 600 AM CDT...

AT 521 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
WEST OF REEDSBURG...MOVING SOUTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  REEDSBURG AROUND 535 AM CDT.
  WEST BARABOO...DEVILS LAKE STATE PARK...BARABOO AND WISCONSIN DELLS
  AIRPORT AROUND 600 AM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
LOGANVILLE...ROCK SPRINGS...NORTH FREEDOM AND DEVILS LAKE ST PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4362 9012 4349 8962 4327 8980 4344 9020
      4346 9020
TIME...MOT...LOC 1025Z 294DEG 22KT 4352 9010
WIND...HAIL 60MPH 1.75IN

$$

WOOD

301 
WWUS53 KMKX 061039
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
539 AM CDT MON JUN 6 2011

WIC111-061100-
/O.CON.KMKX.SV.W.0063.000000T0000Z-110606T1100Z/
SAUK WI-
539 AM CDT MON JUN 6 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL SAUK
COUNTY UNTIL 600 AM CDT...

AT 535 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO
TENNIS BALL SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS
STORM WAS LOCATED NEAR REEDSBURG...MOVING SOUTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  WEST BARABOO...DEVILS LAKE STATE PARK AND BARABOO AROUND 600 AM
  CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE ROCK
SPRINGS AND NORTH FREEDOM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4340 9009 4345 9014 4357 9004 4349 8962
      4327 8980
TIME...MOT...LOC 1039Z 306DEG 20KT 4347 9002
WIND...HAIL 60MPH 2.50IN

$$

WOOD

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 5:50 AM CDT	Severe Thunderstorm Warning	MKX	Sauk	40 min
Jun 6, 6:09 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Sauk	51 min
Jun 6, 6:26 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Sauk	49 min
Jun 6, 6:44 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Green Lake, Marquette	46 min
Jun 6, 8:58 AM CDT	Severe Thunderstorm Warning	MKX	Green Lake, Marquette	47 min
Jun 6, 9:19 AM CDT	Severe Thunderstorm Warning	MKX	Dodge, Washington, Waukesha	41 min
Jun 6, 9:28 AM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac, Green Lake	62 min
Jun 6, 3:17 PM CDT	Heat Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	29 hr

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