Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 80, NWS La Crosse, WI

July 24, 20115 counties in Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jul 24, 2011, 1:14 AM CDT for 5 counties in Wisconsin. It was in force for 61 min. 8 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: Jul 24, 2011, 1:14 AM CDT (06:14 UTC)
Expired: Jul 24, 2011, 2:15 AM CDT
In force: 61 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Adams County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI

The radar

The La Crosse radar (KARX), 74 km from the middle of the area, began a volume at 06:16 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
Jul 24, 1:18 AM CDT	TSTM WND GST 50	Cataract, WI
Jul 24, 1:25 AM CDT	TSTM WND DMG	5 Ne Sparta, WI	8 TO 10 INCH DIAMETER TREE DOWN IN THE PINE VIEW CAMPGROUND.
Jul 24, 1:29 AM CDT	TSTM WND GST 51	5 Wsw Warrens, WI
Jul 24, 1:34 AM CDT	TSTM WND DMG	Tomah, WI	TREE DOWN ON POWER LINE.
Jul 24, 1:37 AM CDT	TSTM WND GST 50	Sparta, WI
Jul 24, 1:38 AM CDT	TSTM WND GST 50	Tomah, WI
Jul 24, 1:42 AM CDT	TSTM WND GST 45	Tomah, WI
Jul 24, 1:58 AM CDT	TSTM WND GST 46	Volk Field, 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
Jul 23, 6:36 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 6.2 hours before the alert went out and 184 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: 209 J/kg
Mixed-layer CIN: -185 J/kg
Mixed-layer LCL: 682 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 309 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

182 
WUUS53 KARX 240614
SVRARX
WIC001-053-057-063-081-240715-
/O.NEW.KARX.SV.W.0080.110724T0614Z-110724T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
114 AM CDT SUN JUL 24 2011

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL ADAMS COUNTY IN CENTRAL WISCONSIN...
  JUNEAU COUNTY IN CENTRAL WISCONSIN...
  SOUTHEASTERN JACKSON COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHEASTERN LA CROSSE COUNTY IN WEST CENTRAL WISCONSIN...
  MONROE COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 215 AM CDT

* AT 111 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ROUGHLY ALONG A LINE EXTENDING FROM 11 MILES
  NORTHEAST OF MILLSTON TO MILLSTON TO CATARACT...MOVING SOUTHEAST AT
  55 MPH. THESE STORMS CAN PRODUCE PENNY SIZE HAIL AND DAMAGING WINDS
  IN EXCESS OF 60 MPH. LOCAL LAW ENFORCEMENT OFFICIALS HAVE 
  ALREADY   REPORTED TREES DOWN ACROSS JACKSON COUNTY WITH THESE 
  STORMS.  THIS WARNING   EXTENDS THE PREVIOUS SEVERE THUNDERSTORM 
  WARNING FOR JACKSON AND MONROE COUNTIES.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  SPARTA AND FORT MC COY AROUND 120 AM...
  TOMAH AROUND 130 AM...
  NECEDAH AROUND 145 AM...
  NEW LISBON AND DELLWOOD AROUND 150 AM...
  MAUSTON AND ELROY AROUND 155 AM...
  FRIENDSHIP AND WONEWOC AROUND 200 AM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
SMALL HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4378 8983 4363 9014 4363 9028 4365 9032
      4373 9032 4373 9047 4405 9111 4424 9073
      4442 9057 4442 9049 4433 9031 4426 9031
      4425 9017 4399 8965
TIME...MOT...LOC 0613Z 305DEG 46KT 4431 9048 4417 9060
          4404 9087
WIND...HAIL 60MPH 0.75IN

$$

04

4 follow-up statements

516 
WWUS53 KARX 240631
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
131 AM CDT SUN JUL 24 2011

WIC063-240641-
/O.CAN.KARX.SV.W.0080.000000T0000Z-110724T0715Z/
LA CROSSE WI-
131 AM CDT SUN JUL 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LA CROSSE COUNTY
IS CANCELLED...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT SUNDAY
MORNING FOR SOUTHWESTERN WISCONSIN.

LAT...LON 4378 8983 4363 9013 4363 9028 4365 9032
      4373 9032 4373 9047 4400 9091 4421 9066
      4441 9046 4433 9031 4426 9031 4425 9017
      4399 8965
TIME...MOT...LOC 0631Z 306DEG 36KT 4421 9030 4407 9042
          4394 9069

$$

WIC001-053-057-081-240715-
/O.CON.KARX.SV.W.0080.000000T0000Z-110724T0715Z/
ADAMS WI-JACKSON WI-JUNEAU WI-MONROE WI-
131 AM CDT SUN JUL 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR MONROE...
JUNEAU...SOUTHEASTERN JACKSON AND CENTRAL ADAMS COUNTIES UNTIL 215 AM
CDT...

AT 125 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM 12 MILES WEST
OF BABCOCK TO TOMAH TO SPARTA...MOVING SOUTHEAST AT 40 MPH. THESE
STORMS CAN PRODUCE PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  NECEDAH AROUND 155 AM...
  NEW LISBON AROUND 200 AM...
  ELROY AND DELLWOOD AROUND 205 AM...
  FRIENDSHIP AND MAUSTON AROUND 210 AM...
  WONEWOC AROUND 215 AM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND SMALL HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM SUNDAY
MORNING FOR SOUTHWESTERN WISCONSIN.

&&

LAT...LON 4378 8983 4363 9013 4363 9028 4365 9032
      4373 9032 4373 9047 4400 9091 4421 9066
      4441 9046 4433 9031 4426 9031 4425 9017
      4399 8965
TIME...MOT...LOC 0631Z 306DEG 36KT 4421 9030 4407 9042
          4394 9069
WIND...HAIL 60MPH 0.75IN

$$

04

342 
WWUS53 KARX 240649
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
149 AM CDT SUN JUL 24 2011

WIC001-053-057-081-240715-
/O.CON.KARX.SV.W.0080.000000T0000Z-110724T0715Z/
ADAMS WI-JACKSON WI-JUNEAU WI-MONROE WI-
149 AM CDT SUN JUL 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR MONROE...
JUNEAU...SOUTHEASTERN JACKSON AND CENTRAL ADAMS COUNTIES UNTIL 215 AM
CDT...

TRAINED WEATHER SPOTTERS REPORTED WINDS OF 50 MPH AT SEVERAL 
LOCATIONS ACROSS MONROE COUNTY INCLUDING SPARTA AND TOMAH WITH A 
LINE OF SEVERE THUNDERSTORMS.

AT 144 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM 10 MILES SOUTH
OF BABCOCK TO 9 MILES EAST OF TOMAH TO TOMAH...MOVING SOUTHEAST AT 30
MPH. THESE STORMS CAN PRODUCE PENNY SIZE HAIL AND DAMAGING WINDS IN
EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  NECEDAH AROUND 205 AM...
  NEW LISBON AROUND 210 AM...
  MAUSTON AND FRIENDSHIP AROUND 215 AM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND SMALL HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM SUNDAY
MORNING FOR SOUTHWESTERN WISCONSIN.

&&

LAT...LON 4378 8983 4363 9012 4363 9029 4365 9032
      4373 9032 4373 9047 4394 9081 4412 9055
      4426 9031 4425 9017 4399 8965
TIME...MOT...LOC 0648Z 305DEG 28KT 4414 9016 4400 9028
          4387 9055
WIND...HAIL 60MPH 0.75IN

$$

04

052 
WWUS53 KARX 240704
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
204 AM CDT SUN JUL 24 2011

WIC053-081-240714-
/O.CAN.KARX.SV.W.0080.000000T0000Z-110724T0715Z/
JACKSON WI-MONROE WI-
204 AM CDT SUN JUL 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR MONROE AND SOUTHEASTERN
JACKSON COUNTIES IS CANCELLED...

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

LAT...LON 4399 8965 4378 8983 4363 9011 4363 9030
      4365 9032 4403 9030 4419 9006
TIME...MOT...LOC 0704Z 305DEG 28KT 4404 8992 4392 9007

$$

WIC001-057-240715-
/O.CON.KARX.SV.W.0080.000000T0000Z-110724T0715Z/
ADAMS WI-JUNEAU WI-
204 AM CDT SUN JUL 24 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR JUNEAU AND
CENTRAL ADAMS COUNTIES UNTIL 215 AM CDT...

AT 202 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM DELLWOOD TO
NEW LISBON...MOVING SOUTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  DELLWOOD AROUND 210 AM...
  FRIENDSHIP AND MAUSTON AROUND 215 AM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR.
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4399 8965 4378 8983 4363 9011 4363 9030
      4365 9032 4403 9030 4419 9006
TIME...MOT...LOC 0704Z 305DEG 28KT 4404 8992 4392 9007
WIND...HAIL <50MPH <.50IN

$$

980 
WWUS53 KARX 240711
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
211 AM CDT SUN JUL 24 2011

WIC001-057-240721-
/O.EXP.KARX.SV.W.0080.000000T0000Z-110724T0715Z/
ADAMS WI-JUNEAU WI-
211 AM CDT SUN JUL 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR JUNEAU AND CENTRAL ADAMS
COUNTIES WILL EXPIRE AT 215 AM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS. HOWEVER...THE LINE OF STORMS REMAINS STRONG AND COULD
PRODUCE SMALL HAIL AND GUSTY WINDS...IN ADDITION TO LIGHTNING AND
HEAVY RAIN.

LAT...LON 4399 8965 4378 8983 4363 9011 4363 9030
      4365 9032 4403 9030 4419 9006
TIME...MOT...LOC 0711Z 305DEG 28KT 4401 8986 4389 9001

$$

04

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 11:53 PM CDT	Severe Thunderstorm Warning	ARX	Clark	53 min
Jul 24, 12:37 AM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson, Monroe, Trempealeau	38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.