Alert archive / Wisconsin / Tornado Warnings in 2009

Tornado Warning 15, NWS La Crosse, WI

July 24, 2009Grant County, Wisconsin

NWS La Crosse, WI issued this tornado warning at Jul 24, 2009, 6:08 PM CDT for Grant County, Wisconsin. It was in force for 34 min. 2 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, 2009, 6:08 PM CDT (23:08 UTC)
Expired: Jul 24, 2009, 6:42 PM CDT
In force: 34 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon

County Grant County, WI

The radar

The Quad Cities radar (KDVN), 111 km from the middle of the area, began a volume at 23:11 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

Time	Report	Where	Remark
Jul 24, 6:15 PM CDT	TSTM WND DMG	2 E Kieler, WI	10 POWER POLES SNAPPED ALONG COUNTY RD H JUST EAST OF KIELER. TOWN OF KIELER WITHOUT POWER.
Jul 24, 6:27 PM CDT	TSTM WND GST 78	4 Se Dickeyville, 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 24, 5:02 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.1 hours before the alert went out and 110 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: 116 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1036 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KARX 242308
TORARX
WIC043-250000-
/O.NEW.KARX.TO.W.0015.090724T2308Z-090725T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
608 PM CDT FRI JUL 24 2009

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GRANT COUNTY IN SOUTHWEST WISCONSIN...

* UNTIL 700 PM CDT

* AT 608 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR GEORGETOWN...OR 7 MILES SOUTH OF PLATTEVILLE...MOVING
  SOUTHEAST AT 25 MPH. THIS TORNADO WARNING UPGRADES THE PREVIOUS
  SEVERE THUNDERSTORM WARNING FOR GRANT COUNTY.

* THE TORNADO WILL BE NEAR...
  CUBA CITY AROUND 620 PM...
  HAZEL GREEN AROUND 625 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST IOWA AND SOUTHWEST WISCONSIN.

&&

LAT...LON 4262 9065 4276 9050 4272 9042 4251 9042
      4250 9043 4251 9049
TIME...MOT...LOC 2308Z 311DEG 21KT 4264 9050

$$

AJ

2 follow-up statements

000 
WWUS53 KARX 242326
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
626 PM CDT FRI JUL 24 2009

WIC043-250000-
/O.CON.KARX.TO.W.0015.000000T0000Z-090725T0000Z/
GRANT WI-
626 PM CDT FRI JUL 24 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHEASTERN GRANT COUNTY...
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT 
FOR ALL OF GRANT COUNTY...

AT 624 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR CUBA CITY...OR 9
MILES SOUTH OF PLATTEVILLE...MOVING SOUTHEAST AT 20 MPH. 

* THE TORNADO WILL BE NEAR...
  CUBA CITY AROUND 630 PM...
  HAZEL GREEN AROUND 640 PM...

A SEVERE THUNDERSTORM WAS LOCATED NEAR DICKEYVILLE...MOVING SOUTH AT 
25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  KIELER AROUND 630 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CARS AND MOBILE HOMES SHOULD BE ABANDONED FOR A STURDY BUILDING. AS A
LAST RESORT...LAY FLAT IN A DITCH AND COVER YOUR HEAD.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM FRIDAY EVENING FOR
NORTHEAST IOWA AND SOUTHWEST WISCONSIN.

&&

LAT...LON 4262 9065 4269 9052 4269 9043 4251 9042
      4250 9043 4251 9049
TIME...MOT...LOC 2324Z 312DEG 15KT 4261 9046

$$

AJ

000 
WWUS53 KARX 242342
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
642 PM CDT FRI JUL 24 2009

WIC043-242350-
/O.CAN.KARX.TO.W.0015.000000T0000Z-090725T0000Z/
GRANT WI-
642 PM CDT FRI JUL 24 2009

...THE TORNADO WARNING FOR SOUTHEASTERN GRANT COUNTY IS CANCELLED...
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT 
FOR GRANT COUNTY...

ALTHOUGH THE TORNADO THREAT HAS ENDED...DAMAGING WINDS AND 
GOLF BALL SIZE HAIL ARE STILL POSSIBLE WITH A SEVERE THUNDERSTORM 
INDICATED BY DOPPLER RADAR NEAR KIELER. THIS STORM IS MOVING TO THE 
SOUTHEAST AT 25 MPH. REMAIN INDOORS AND AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FRIDAY EVENING
FOR NORTHEAST IOWA AND SOUTHWEST WISCONSIN.

LAT...LON 4262 9065 4269 9052 4269 9043 4251 9042
      4250 9043 4251 9049
TIME...MOT...LOC 2340Z 312DEG 15KT 4256 9039

$$

AJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 1:32 PM CDT	Severe Thunderstorm Warning	ARX	Grant	58 min
Jul 24, 3:07 PM CDT	Severe Thunderstorm Warning	ARX	Crawford	53 min
Jul 24, 3:35 PM CDT	Areal Flood Advisory	ARX	Crawford, Grant, Richland, Vernon	3 hr
Jul 24, 3:48 PM CDT	Severe Thunderstorm Warning	ARX	Crawford, Grant	57 min
Jul 24, 4:07 PM CDT	Flash Flood Warning	ARX	Crawford	3 hr
Jul 24, 4:24 PM CDT	Severe Thunderstorm Warning	ARX	Crawford	66 min
Jul 24, 4:44 PM CDT	Severe Thunderstorm Warning	ARX	Grant	76 min
Jul 24, 5:39 PM CDT	Flash Flood Warning	ARX	Grant	2 hr
Jul 24, 5:52 PM CDT	Flash Flood Warning	ARX	Crawford	3 hr
Jul 24, 5:59 PM CDT	Severe Thunderstorm Warning	ARX	Grant	61 min

Nearby

Tornado Warnings in Wisconsin, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.