Alert archive / Wisconsin / Tornado Warnings in 2009

Tornado Warning 19, NWS La Crosse, WI

July 27, 2009Grant County, Richland County, Wisconsin

NWS La Crosse, WI issued this tornado warning at Jul 27, 2009, 5:59 PM CDT for Grant County, Richland County, Wisconsin. It was in force for 42 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 27, 2009, 5:59 PM CDT (22:59 UTC)
Expired
Jul 27, 2009, 6:41 PM CDT
In force
42 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon

Counties Grant County, WI, Richland County, WI

The radar

The La Crosse radar (KARX), 98 km from the middle of the area, began a volume at 22:58 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 27, 6:25 PM CDTTSTM WND DMGMuscoda, WIPOWER LINES AND TREES DOWN THROUGH TOWN

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.

IssuedProductOfficeLasted
Jul 27, 2:41 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.0 hours before the alert went out and 176 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, Davenport, at 12:00Z on 2009-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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, Davenport, at 12:00Z on 2009-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.193958Sfc1 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
21 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1158 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KARX 272259
TORARX
WIC043-103-280000-
/O.NEW.KARX.TO.W.0019.090727T2259Z-090728T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
559 PM CDT MON JUL 27 2009

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN GRANT COUNTY IN SOUTHWEST WISCONSIN...
  SOUTHERN RICHLAND COUNTY IN SOUTHWEST WISCONSIN...

* UNTIL 700 PM CDT

* AT 558 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR EXCELSIOR...OR 15 MILES SOUTHWEST OF RICHLAND   
CENTER...MOVING EAST AT 20 MPH. 

* THE TORNADO WILL BE NEAR...
  EAGLE CORNERS AROUND 620 PM...
  MUSCODA AROUND 630 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4317 9020 4317 9021 4320 9026 4320 9029
      4321 9031 4320 9042 4306 9043 4318 9066
      4334 9066 4332 9019 4318 9019
TIME...MOT...LOC 2259Z 287DEG 17KT 4323 9063

$$

BOYNE
5 follow-up statements
000 
WWUS53 KARX 272307
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
607 PM CDT MON JUL 27 2009

WIC043-103-280000-
/O.CON.KARX.TO.W.0019.000000T0000Z-090728T0000Z/
RICHLAND WI-GRANT WI-
607 PM CDT MON JUL 27 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHEASTERN GRANT AND SOUTHERN RICHLAND COUNTIES...

AT 604 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO NEAR PORT ANDREW...OR 13 MILES SOUTHWEST OF 
RICHLAND CENTER...MOVING EAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  EAGLE CORNERS AROUND 620 PM...  
  MUSCODA AROUND 630 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MONDAY
EVENING FOR NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND
SOUTHWESTERN WISCONSIN.

&&

LAT...LON 4317 9020 4317 9021 4320 9026 4320 9029
      4321 9031 4320 9042 4306 9043 4318 9066
      4334 9066 4332 9019 4318 9019
TIME...MOT...LOC 2304Z 287DEG 17KT 4322 9060

$$

BOYNE
000 
WWUS53 KARX 272313 RRA
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
613 PM CDT MON JUL 27 2009

WIC043-103-280000-
/O.CON.KARX.TO.W.0019.000000T0000Z-090728T0000Z/
RICHLAND WI-GRANT WI-
613 PM CDT MON JUL 27 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHEASTERN GRANT AND SOUTHERN RICHLAND COUNTIES...

AT 611 PM CDT...A TORNADO WAS INDICATED BY RADAR JUST EAST OF PORT 
ANDREW...OR 12 MILES SOUTHWEST OF RICHLAND CENTER...MOVING EAST AT 
20 MPH.

* THE TORNADO WILL BE NEAR...
  MUSCODA AROUND 630 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MONDAY
EVENING FOR NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND
SOUTHWESTERN WISCONSIN.

&&

LAT...LON 4317 9020 4317 9021 4320 9026 4320 9029
      4321 9031 4320 9042 4306 9043 4318 9066
      4334 9066 4332 9019 4318 9019
TIME...MOT...LOC 2312Z 287DEG 17KT 4321 9055

$$

BOYNE
000 
WWUS53 KARX 272324
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
624 PM CDT MON JUL 27 2009

WIC043-103-280000-
/O.CON.KARX.TO.W.0019.000000T0000Z-090728T0000Z/
RICHLAND WI-GRANT WI-
624 PM CDT MON JUL 27 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHEASTERN GRANT AND SOUTHERN RICHLAND COUNTIES...

AT 622 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR MUSCODA...OR 
11 MILES SOUTH OF RICHLAND CENTER...MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  LONE ROCK AROUND 650 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MONDAY
EVENING FOR NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND
SOUTHWESTERN WISCONSIN.

&&

LAT...LON 4317 9020 4317 9021 4320 9026 4320 9029
      4321 9031 4320 9042 4306 9043 4318 9066
      4334 9066 4332 9019 4318 9019
TIME...MOT...LOC 2324Z 285DEG 23KT 4319 9043

$$

BOYNE
000 
WWUS53 KARX 272331
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
631 PM CDT MON JUL 27 2009

WIC043-103-280000-
/O.CON.KARX.TO.W.0019.000000T0000Z-090728T0000Z/
RICHLAND WI-GRANT WI-
631 PM CDT MON JUL 27 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHEASTERN GRANT AND SOUTHERN RICHLAND COUNTIES...

AT 630 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO. THIS TORNADO WAS LOCATED JUST SOUTH OF 
MUSCODA...OR 11 MILES SOUTH OF RICHLAND CENTER...MOVING EAST AT 
25 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MONDAY
EVENING FOR NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND
SOUTHWESTERN WISCONSIN.

&&

LAT...LON 4317 9020 4317 9021 4320 9026 4320 9029
      4321 9031 4320 9042 4306 9043 4318 9066
      4334 9066 4332 9019 4318 9019
TIME...MOT...LOC 2331Z 289DEG 22KT 4317 9043

$$

BOYNE
000 
WWUS53 KARX 272341
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
641 PM CDT MON JUL 27 2009

WIC043-103-272350-
/O.CAN.KARX.TO.W.0019.000000T0000Z-090728T0000Z/
RICHLAND WI-GRANT WI-
641 PM CDT MON JUL 27 2009

...THE TORNADO WARNING FOR NORTHEASTERN GRANT AND SOUTHERN RICHLAND
COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND
SOUTHWESTERN WISCONSIN.

LAT...LON 4317 9020 4317 9021 4320 9026 4320 9029
      4321 9031 4320 9042 4306 9043 4318 9066
      4334 9066 4332 9019 4318 9019
TIME...MOT...LOC 2340Z 289DEG 22KT 4315 9036

$$

BOYNE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 2:15 PM CDTSevere Thunderstorm WarningARXClark, Jackson60 min
Jul 27, 2:50 PM CDTSevere Thunderstorm WarningARXJackson25 min
Jul 27, 3:07 PM CDTSevere Thunderstorm WarningARXJackson, Trempealeau33 min
Jul 27, 3:12 PM CDTSevere Thunderstorm WarningARXJackson, Juneau48 min
Jul 27, 3:29 PM CDTSevere Thunderstorm WarningARXMonroe46 min
Jul 27, 4:12 PM CDTSevere Thunderstorm WarningARXMonroe48 min
Jul 27, 4:21 PM CDTSevere Thunderstorm WarningARXAdams39 min
Jul 27, 4:44 PM CDTSevere Thunderstorm WarningARXJuneau, Monroe, Vernon61 min
Jul 27, 5:00 PM CDTSevere Thunderstorm WarningARXCrawford, Richland60 min
Jul 27, 5:15 PM CDTTornado WarningARXCrawford, Richland60 min
Jul 27, 5:36 PM CDTTornado WarningARXRichland54 min
Jul 27, 6:10 PM CDTTornado WarningARXRichland31 min
Jul 27, 6:21 PM CDTTornado WarningARXGrant24 min
Jul 27, 6:24 PM CDTAreal Flood AdvisoryARXCrawford, Grant, Richland106 min

Nearby

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