Alert archive / Wisconsin / Tornado Warnings in 2007
Tornado Warning 1, NWS La Crosse, WI
NWS La Crosse, WI issued this tornado warning at Mar 31, 2007, 6:25 PM CDT for Grant County, Wisconsin. It was in force for 35 min. 4 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
- Mar 31, 2007, 6:25 PM CDT (23:25 UTC)
- Expired
- Mar 31, 2007, 7:00 PM CDT
- In force
- 35 min
- Issued by
- NWS La Crosse, WI
- Area
- Counties, with a storm outline in the text
County Grant County, WI
The radar
The La Crosse radar (KARX), 108 km from the middle of the area, began a volume at 23:26 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 |
|---|---|---|---|
| Mar 31, 6:41 PM CDT | FUNNEL CLOUD | 1 Sw Platteville, WI | |
| Mar 31, 6:45 PM CDT | TORNADO | 2 E Platteville, WI | |
| Mar 31, 6:47 PM CDT | FUNNEL CLOUD | Preston, WI | |
| Mar 31, 6:50 PM CDT | FUNNEL CLOUD | Preston, WI | SPOTTERS REPORT 3 FUNNEL CLOUDS ON THE EAST SIDE OF 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 31, 5:11 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.4 hours before the alert went out and 146 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 843 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 290 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KARX 312325
TORARX
WIC043-010000-
/O.NEW.KARX.TO.W.0001.070331T2325Z-070401T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
625 PM CDT SAT MAR 31 2007
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* TORNADO WARNING FOR...
EASTERN GRANT COUNTY IN SOUTHWEST WISCONSIN...
* UNTIL 700 PM CDT
* AT 618 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR
POTOSI MOVING NORTH AT 45 MPH.
* THE TORNADO IS EXPECTED TO BE NEAR...
LANCASTER MUNICIPAL AIRPORT AND PLATTEVILLE AIRPORT AROUND
625 PM...
KLONDYKE SECLUDED ACRES AND ARTHUR AROUND 630 PM...
MOUNT IDA AND ANNATON AROUND 635 PM...
WERLEY AND PRESTON AROUND 640 PM...
COUNTY ROADS K AND T AND HIGHWAY 61 AND COUNTY T AROUND 645 PM...
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 900 PM SATURDAY EVENING FOR
NORTHEASTERN IOWA.
LAT...LON 4291 9087 4262 9056 4263 9043 4320 9044
4318 9064 4306 9089
$$
BOYNE5 follow-up statements
000
WWUS53 KARX 312337
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
637 PM CDT SAT MAR 31 2007
WIC043-010000-
/O.CON.KARX.TO.W.0001.000000T0000Z-070401T0000Z/
GRANT WI-
637 PM CDT SAT MAR 31 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR EASTERN
GRANT COUNTY...
AT 634 PM CDT...DOPPLER RADAR INDICATED A TORNADO NEAR
STITZER...OR NEAR LANCASTER...MOVING NORTHEAST AT 40 MPH.
* THE TORNADO WILL BE NEAR...
COUNTY ROADS K AND T AND HIGHWAY 61 AND COUNTY T AROUND 645 PM...
WOODMAN AND MONTFORT AROUND 650 PM...
BOSCOBEL AND RED OAK RIDGE AROUND 655 PM...
BLUE RIVER AROUND 700 PM...
TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS
LAT...LON 4291 9087 4262 9056 4263 9043 4320 9044
4318 9064 4306 9089
$$
BOYNE000
WWUS53 KARX 312343 RRA
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
641 PM CDT SAT MAR 31 2007
WIC043-010000-
/O.CON.KARX.TO.W.0001.000000T0000Z-070401T0000Z/
GRANT WI-
641 PM CDT SAT MAR 31 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR EASTERN
GRANT COUNTY...
AT 638 PM CDT...SPOTTER REPORTED A FUNNEL JUST SOUTH OF PLATTEVILLE.
DOPPLER RADAR ALSO INDICATED POSSIBLE TORNADOES JUST EAST
STITZER...BOSCOBEL...AND UNION. THESE STORMS WERE MOVING NORTHEAST
AT 40 MPH.
TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS
LAT...LON 4291 9087 4262 9056 4263 9043 4320 9044
4318 9064 4306 9089
$$
BOYNE000
WWUS53 KARX 312351
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
651 PM CDT SAT MAR 31 2007
WIC043-010000-
/O.CON.KARX.TO.W.0001.000000T0000Z-070401T0000Z/
GRANT WI-
651 PM CDT SAT MAR 31 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR EASTERN
GRANT COUNTY...
AT 647 PM CDT...SPOTTERS REPORTED THREE FUNNEL CLOUDS JUST EAST OF
PRESTON...OR 14 MILES NORTHEAST OF LANCASTER...MOVING NORTHEAST AT
55 MPH.
LAT...LON 4291 9087 4262 9056 4263 9043 4320 9044
4318 9064 4306 9089
$$
BOYNE000
WWUS53 KARX 312355
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
655 PM CDT SAT MAR 31 2007
WIC043-010000-
/O.CON.KARX.TO.W.0001.000000T0000Z-070401T0000Z/
GRANT WI-
655 PM CDT SAT MAR 31 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR EASTERN
GRANT COUNTY...
AT 651 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR CASTLE ROCK...OR
18 MILES NORTHEAST OF LANCASTER...MOVING NORTHEAST AT 45 MPH.
TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS
LAT...LON 4291 9087 4262 9056 4263 9043 4320 9044
4318 9064 4306 9089
$$
BOYNE000
WWUS53 KARX 010000
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
700 PM CDT SAT MAR 31 2007
WIC043-010010-
/O.EXP.KARX.TO.W.0001.000000T0000Z-070401T0000Z/
GRANT WI-
700 PM CDT SAT MAR 31 2007
...THE TORNADO WARNING FOR EASTERN GRANT COUNTY EXPIRES AT 700 PM
CDT...
THE STORM WHICH PROMPTED THIS WARNING HAS MOVED OUT OF THE WARNED
AREA.
A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA.
LAT...LON 4291 9087 4262 9056 4263 9043 4320 9044
4318 9064 4306 9089
$$
BOYNEThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 6:12 PM CDT | Severe Thunderstorm Warning | ARX | Crawford | 33 min |
| Mar 31, 6:48 PM CDT | Tornado Warning | ARX | Richland | 42 min |
| Mar 31, 6:49 PM CDT | Tornado Warning | ARX | Vernon | 26 min |
Nearby
Tornado Warnings in Wisconsin, 2007Every tornado warning in 2007Tornadoes in 2007
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.