Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 115, NWS La Crosse, WI

August 23, 2006Adams County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Aug 23, 2006, 11:59 PM CDT for Adams County, Wisconsin. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 23, 2006, 11:59 PM CDT (04:59 UTC)
Expired: Aug 24, 2006, 12:30 AM CDT
In force: 31 min
Issued by: NWS La Crosse, WI
Area: Counties, with a storm outline in the text

County Adams County, WI

The radar

The La Crosse radar (KARX), 115 km from the middle of the area, began a volume at 04:59 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 23, 9:49 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.0 hours before the alert went out and 145 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: 877 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 23, 9:34 PM CDT, 2 hours 25 minutes earlier.

Area forecast discussion, Aug 23, 9:34 PM CDT, 2 hours 25 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
934 PM CDT WED AUG 23 2006

.UPDATE...SEVERE WEATHER THREAT APPEARS TO BE LOWERING AT PRESENT
TIME...WITH MOST INTENSE CONVECTION SHIFTING FURTHER INTO SOUTH
CENTRAL WI. SURFACE FRONT EXTENDS FROM NEAR KMKT TO KMSN...WITH
AXIS OF INSTABILITY AS SHOWN IN CAPE FIELD EXTENDING ALONG AND
SOUTH OF THE FRONT.

ACCORDING TO LATEST RUC AND WRF/NAM...850MB MOISTURE TRANSPORT AND
WARM AIR ADVECTION CONTINUES INTO THE FRONT TONIGHT AND INTO
INSTABILITY GRADIENT. THUS...MODELS DEPICTING SHOWERS AND
THUNDERSTORMS TO REMAIN ACROSS THE FORECAST AREA DURING THE
NIGHT.

PLAN TO UPDATE DATA BASE WITH LATEST TRENDS FOR OVERNIGHT HOURS
AND ALSO TEXT PRODUCTS AROUND 0300-0330Z...WITH ANTICIPATED
EXPIRATION OF TORNADO WATCH.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...NONE.
MN...NONE.
IA...NONE.
&&

THOMPSON

Hazardous weather outlook, Aug 23, 11:15 PM CDT, 44 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
1115 PM CDT WED AUG 23 2006

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034-
041>044-053>055-061-241100-
ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-DODGE-
FAYETTE-FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE-
MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU-VERNON-
WABASHA-WINNESHIEK-WINONA-
1115 PM CDT WED AUG 23 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MINNESOTA...NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN.

.DAY ONE...TONIGHT

A FRONTAL BOUNDARY REMAINS LOCATED FROM NEAR MANKATO MINNESOTA TO
DECORAH IOWA...SOUTHEASTWARD TO NEAR MADISON WISCONSIN. SCATTERED
THUNDERSTORMS COULD OCCUR ACROSS THE AREA...BUT APPEAR MOST LIKELY
ALONG AND EAST OF INTERSTATE 94 DURING THE OVERNIGHT HOURS...WITH
LARGE HAIL THE PRIMARY THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A SLIGHT RISK OF SEVERE THUNDERSTORMS CONTINUES FOR THURSDAY AND
THURSDAY NIGHT. THE FRONTAL BOUNDARY WILL REMAIN NEAR A SIOUX FALLS
TO MASON CITY AND DUBUQUE LINE FOR THURSDAY AND THURSDAY NIGHT. AS A
STRONG UPPER DISTURBANCE AND AN AREA OF LOW PRESSURE MOVE ACROSS THE
NORTHERN PLAINS...THE SOUTHERLY FLOW OF MOISTURE INTO AND OVER THE
FRONT WILL INCREASE FOR THURSDAY AFTERNOON AND EVENING. THE AIRMASS
SOUTH OF THE FRONTAL BOUNDARY WILL AGAIN BECOME VERY UNSTABLE. WINDS
ALOFT WILL INCREASE AS WELL. THIS COMBINATION WILL BE FAVORABLE FOR
A FEW OF THE STORMS TO BECOME SEVERE...WITH LARGE HAIL AND DAMAGING
WINDS THE MAIN THREAT. IF THE FRONT LIFTS INTO THE AREA THURSDAY
AFTERNOON OR EARLY THURSDAY EVENING...THERE WILL ALSO BE A RISK FOR
ISOLATED TORNADOS WITH ANY THUNDERSTORMS NEAR THE FRONTAL BOUNDARY.
THE TORNADO THREAT WOULD MAINLY BE ACROSS NORTHEAST IOWA AND
SOUTHWEST WISCONSIN.

WITH A VERY MOIST AIRMASS BEING LIFTED NORTH OVER THE FRONT...THERE
IS ALSO THE THREAT OF LOCALLY HEAVY RAINS AND A POTENTIAL FOR FLASH
FLOODING THURSDAY NIGHT. THIS THREAT APPEARS TO BE MAINLY NORTH OF
INTERSTATE 90.

STAY TUNED FOR LATER OUTLOOKS WHICH WILL REFINE THE TIMING AND THREAT
AREAS FOR THESE POTENTIAL SEVERE WEATHER EVENTS.

.SPOTTER INFORMATION STATEMENT...

SINCE THE PRIMARY SEVERE WEATHER THREAT APPEARS TO BE LARGE HAIL...
SPOTTER ACTIVATION SHOULD NOT BE NECESSARY FOR THE REMAINDER OF THE
OVERNIGHT HOURS.

SPOTTER ACTIVATION MAY BE NEEDED ALMOST ANYWHERE IN THE AREA THURSDAY
AFTERNOON AND EVENING...WHICH WILL DEPEND ON WHERE THE FRONTAL
BOUNDARY IS.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

THOMPSON

In the hours before

Local storm report, Aug 23, 8:16 PM CDT, 3 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
816 PM CDT WED AUG 23 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0757 PM     HAIL             1 W WARRENS             44.13N 90.52W
08/23/2006  E0.88 INCH       MONROE             WI   AMATEUR RADIO

&&

DAVIS

Local storm report, Aug 23, 8:38 PM CDT, 3 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
838 PM CDT WED AUG 23 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0835 PM     HAIL             3 NW MATHER             44.18N 90.34W
08/23/2006  M1.00 INCH       JACKSON            WI   CO-OP OBSERVER

&&

ADAMS

Local storm report, Aug 23, 8:57 PM CDT, 3 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
857 PM CDT WED AUG 23 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0856 PM     HAIL             UNION CENTER            43.68N 90.26W
08/23/2006  E0.75 INCH       JUNEAU             WI   LAW ENFORCEMENT

            PENNY SIZE HAIL AND HEAVY WINDS REPORTED.

&&

SHEA

Local storm report, Aug 23, 9:39 PM CDT, 2 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
939 PM CDT WED AUG 23 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0938 PM     HAIL             1 NE TOMAH              44.00N 90.49W
08/23/2006  E0.88 INCH       MONROE             WI   AMATEUR RADIO

&&

DAVIS

Local storm report, Aug 23, 9:47 PM CDT, 2 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
947 PM CDT WED AUG 23 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0943 PM     HAIL             OAKDALE                 43.96N 90.38W
08/23/2006  E1.75 INCH       MONROE             WI   PUBLIC

&&

ADAMS

Local storm report, Aug 23, 10:02 PM CDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
1002 PM CDT WED AUG 23 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0310 PM     HAIL             MEAD LAKE               44.79N 90.76W
08/23/2006  E0.75 INCH       CLARK              WI   PUBLIC

0312 PM     HAIL             3 W GREENWOOD           44.77N 90.66W
08/23/2006  E0.75 INCH       CLARK              WI   AMATEUR RADIO

0525 PM     HAIL             3 SW NEILLSVILLE        44.53N 90.63W
08/23/2006  E0.75 INCH       CLARK              WI   PUBLIC

0542 PM     HAIL             4 NNE HATFIELD          44.47N 90.70W
08/23/2006  E0.75 INCH       CLARK              WI   AMATEUR RADIO

            HAIL REPORT ALONG HIGHWAY 95 ABOUT 8 MILES EAST OF THE
            CLARK-JACKSON COUNTY LINE.

0550 PM     HAIL             2 S HATFIELD            44.39N 90.73W
08/23/2006  E0.75 INCH       JACKSON            WI   AMATEUR RADIO

            RADIO TRAFFIC VIA SPOTTERS.

0600 PM     TSTM WND DMG     3 W HUMBIRD             44.53N 90.96W
08/23/2006                   JACKSON            WI   AMATEUR RADIO

            TREE DOWN OVER ROAD

0605 PM     HAIL             2 WSW MERRILLAN         44.44N 90.87W
08/23/2006  E1.25 INCH       JACKSON            WI   LAW ENFORCEMENT

0620 PM     HAIL             MERRILLAN               44.45N 90.84W
08/23/2006  E1.75 INCH       JACKSON            WI   LAW ENFORCEMENT

0625 PM     TSTM WND DMG     5 NE BLACK RIVER FALLS  44.35N 90.78W
08/23/2006                   JACKSON            WI   LAW ENFORCEMENT

            TREE DOWN OVER ROAD

0632 PM     HAIL             3 SE BLACK RIVER FALLS  44.27N 90.80W
08/23/2006  E1.00 INCH       JACKSON            WI   TRAINED SPOTTER

0635 PM     HAIL             3 SE BLACK RIVER FALLS  44.27N 90.80W
08/23/2006  E1.75 INCH       JACKSON            WI   TRAINED SPOTTER

0655 PM     TSTM WND DMG     2 S WARRENS             44.10N 90.50W
08/23/2006                   MONROE             WI   AMATEUR RADIO

            LARGE TREES DOWN

0655 PM     HAIL             1 S KIRBY               44.09N 90.53W
08/23/2006  E2.00 INCH       MONROE             WI   AMATEUR RADIO

0655 PM     TSTM WND GST     1 SW KIRBY              44.09N 90.55W
08/23/2006  E75.00 MPH       MONROE             WI   AMATEUR RADIO

0655 PM     TSTM WND GST     5 WSW WARRENS           44.10N 90.59W
08/23/2006  M70.00 MPH       MONROE             WI   CO-OP OBSERVER

0655 PM     HAIL             5 WSW WARRENS           44.10N 90.59W
08/23/2006  M1.75 INCH       MONROE             WI   CO-OP OBSERVER

0700 PM     TSTM WND DMG     KIRBY                   44.10N 90.53W
08/23/2006                   MONROE             WI   TRAINED SPOTTER

            BARN DOWN

0700 PM     TSTM WND GST     1 S TUNNEL CITY         43.99N 90.57W
08/23/2006  E55.00 MPH       MONROE             WI   PUBLIC

0702 PM     TSTM WND DMG     3 S WARRENS             44.09N 90.50W
08/23/2006                   MONROE             WI   AMATEUR RADIO

            LARGE TREES DOWN

0703 PM     HAIL             1 S TUNNEL CITY         43.99N 90.57W
08/23/2006  E2.50 INCH       MONROE             WI   TRAINED SPOTTER

0706 PM     HAIL             1 E TUNNEL CITY         44.00N 90.55W
08/23/2006  E1.00 INCH       MONROE             WI   AMATEUR RADIO

0708 PM     HAIL             TOMAH                   43.99N 90.50W
08/23/2006  E0.75 INCH       MONROE             WI   AMATEUR RADIO

0715 PM     TSTM WND DMG     TOMAH                   43.99N 90.50W
08/23/2006                   MONROE             WI   AMATEUR RADIO

            LARGE FUEL TANKS FLIPPED AT GAS STATION. SHOPPING CART
            CORRAL FLIPPED ONTO CARS.

0721 PM     HAIL             2 NW OAKDALE            43.98N 90.41W
08/23/2006  E1.00 INCH       MONROE             WI   TRAINED SPOTTER

0740 PM     HAIL             1 SW UNION CENTER       43.67N 90.28W
08/23/2006  E1.75 INCH       JUNEAU             WI   FIRE DEPT/RESCUE

0742 PM     HAIL             UNION CENTER            43.68N 90.26W
08/23/2006  E0.75 INCH       JUNEAU             WI   LAW ENFORCEMENT

0745 PM     HAIL             UNION CENTER            43.68N 90.26W
08/23/2006  E1.50 INCH       JUNEAU             WI   AMATEUR RADIO

0745 PM     HAIL             HILLSBORO               43.65N 90.34W
08/23/2006  E1.75 INCH       VERNON             WI   FIRE DEPT/RESCUE

0745 PM     HAIL             1 E HILLSBORO           43.65N 90.32W
08/23/2006  E1.75 INCH       VERNON             WI   FIRE DEPT/RESCUE

0745 PM     HAIL             HILLSBORO               43.65N 90.34W
08/23/2006  E1.75 INCH       VERNON             WI   FIRE DEPT/RESCUE

0745 PM     HAIL             HILLSBORO               43.65N 90.34W
08/23/2006  E1.75 INCH       VERNON             WI   FIRE DEPT/RESCUE

0745 PM     HAIL             1 SW UNION CENTER       43.67N 90.28W
08/23/2006  E1.75 INCH       JUNEAU             WI   FIRE DEPT/RESCUE

0748 PM     HAIL             HILLSBORO               43.65N 90.34W
08/23/2006  E1.75 INCH       VERNON             WI   LAW ENFORCEMENT

0757 PM     HAIL             1 W WARRENS             44.13N 90.52W
08/23/2006  E0.88 INCH       MONROE             WI   AMATEUR RADIO

0757 PM     HAIL             WONEWOC                 43.65N 90.22W
08/23/2006  E0.75 INCH       JUNEAU             WI   AMATEUR RADIO

0758 PM     HAIL             WONEWOC                 43.65N 90.22W
08/23/2006  E0.75 INCH       JUNEAU             WI   AMATEUR RADIO

0811 PM     HAIL             CAZENOVIA               43.53N 90.20W
08/23/2006  E1.75 INCH       RICHLAND           WI   AMATEUR RADIO

0835 PM     HAIL             3 NW MATHER             44.18N 90.34W
08/23/2006  M1.00 INCH       JACKSON            WI   CO-OP OBSERVER

0856 PM     HAIL             UNION CENTER            43.68N 90.26W
08/23/2006  E0.75 INCH       JUNEAU             WI   LAW ENFORCEMENT

            PENNY SIZE HAIL AND HEAVY WINDS REPORTED.

0938 PM     HAIL             1 NE TOMAH              44.00N 90.49W
08/23/2006  E0.88 INCH       MONROE             WI   AMATEUR RADIO

0943 PM     HAIL             OAKDALE                 43.96N 90.38W
08/23/2006  E1.75 INCH       MONROE             WI   PUBLIC

&&

DAVIS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 7:05 PM CDT	Severe Thunderstorm Warning	ARX	Juneau	25 min
Aug 23, 7:23 PM CDT	Severe Thunderstorm Warning	ARX	Vernon	47 min
Aug 23, 7:28 PM CDT	Severe Thunderstorm Warning	ARX	Juneau	46 min
Aug 23, 7:32 PM CDT	Severe Thunderstorm Warning	ARX	Jackson	28 min
Aug 23, 7:45 PM CDT	Severe Thunderstorm Warning	ARX	Monroe	30 min
Aug 23, 8:33 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, Juneau, Monroe	30 min
Aug 23, 8:44 PM CDT	Severe Thunderstorm Warning	ARX	Juneau, Monroe, Vernon	29 min
Aug 23, 9:18 PM CDT	Severe Thunderstorm Warning	ARX	Monroe	27 min
Aug 23, 9:43 PM CDT	Severe Thunderstorm Warning	ARX	Juneau, Monroe	42 min
Aug 23, 11:03 PM CDT	Severe Thunderstorm Warning	ARX	Juneau	42 min
Aug 24, 12:25 AM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson	50 min
Aug 24, 1:10 AM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau	50 min
Aug 24, 2:15 AM CDT	Severe Thunderstorm Warning	ARX	Jackson	45 min
Aug 24, 3:32 AM CDT	Severe Thunderstorm Warning	ARX	Juneau	43 min
Aug 24, 12:13 PM CDT	Severe Thunderstorm Warning	ARX	Vernon	32 min
Aug 24, 12:25 PM CDT	Severe Thunderstorm Warning	ARX	Crawford	30 min
Aug 24, 12:53 PM CDT	Severe Thunderstorm Warning	ARX	Richland	18 min
Aug 24, 3:14 PM CDT	Flash Flood Watch	ARX	Adams, Buffalo, Clark, Jackson, Juneau, La Crosse and 3 more	13 hr
Aug 24, 5:08 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	67 min
Aug 24, 5:53 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	52 min
Aug 24, 5:57 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson	52 min
Aug 24, 6:41 PM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	49 min
Aug 24, 10:08 AM CDT	Severe Thunderstorm Warning	ARX	Olmsted, Winona	52 min
Aug 24, 10:36 AM CDT	Severe Thunderstorm Warning	ARX	Olmsted, Wabasha	54 min
Aug 24, 10:51 AM CDT	Severe Thunderstorm Warning	ARX	Houston	39 min
Aug 24, 10:54 AM CDT	Severe Thunderstorm Warning	ARX	Winona	66 min
Aug 24, 11:12 AM CDT	Severe Thunderstorm Warning	ARX	Fillmore	33 min
Aug 24, 11:26 AM CDT	Severe Thunderstorm Warning	ARX	Houston	64 min
Aug 24, 11:53 AM CDT	Severe Thunderstorm Warning	ARX	Dodge	40 min
Aug 24, 12:05 PM CDT	Severe Thunderstorm Warning	ARX	Olmsted	70 min
Aug 24, 12:10 PM CDT	Severe Thunderstorm Warning	ARX	Wabasha	65 min
Aug 24, 6:52 PM CDT	Severe Thunderstorm Warning	ARX	Dodge, Olmsted	38 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2006 Every severe thunderstorm warning in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.