Severe Thunderstorm Warning 145, NWS La Crosse, WI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
325 AM CDT SUN SEP 3 2000

ANOTHER DIFFICULT FORECAST...WITH MAIN CONCERNS HANDLING CONVECTIVE
ACTIVITY TODAY...CLOUD TRENDS THROUGH THE PERIOD AND TEMPERATURES.

06Z SURFACE ANALYSIS SHOWS WEAK LOW ACROSS SOUTHEAST MINNESOTA...
WITH FRONTAL BOUNDARY EXTENDING ACROSS SOUTHWEST WISCONSIN. TROUGH
EXTENDS WESTWARD FROM THE LOW INTO SOUTH DAKOTA. CONVECTION NOW
MOVING THROUGH THE FORECAST AREA. MAIN ACTIVITY ACROSS THE NORTHERN
TIER OF ZONES.

00Z ETA NOT DOING VERY WELL WITH REGARDS TO QPF. 06Z PROG HAS ALL
OF THE PRECIPITATION ALONG THE CANADIAN BORDER. NGM/AVN HAS BETTER
HANDLE. HAVE GENERALLY USED A COMPROMISE WITH REGARDS TO THE DETAILS
OF THE FORECAST.

IN THE SHORT TERM...CONVECTION SHOULD PUSH OUT OF THE AREA LATER THIS
MORNING. ALTHOUGH ATMOSPHERE TO BE WORKED OVER...ETA PROGS CAPES OF
1500 TO 2500 J/KG THIS AFTERNOON. WITH ANY REMAINING BOUNDARIES AM
RELUCTANT TO PULL THE LOW POPS ALREADY GOING. LOW CLOUDS EXPANDING
TO OUR WEST AND SHOULD FILL IN BEHIND SYSTEM. THE ONLY AREAS THAT
MAY SEE SOME SUN WILL BE NORTHEAST IOWA AND EXTREME SOUTHWEST
WISCONSIN.

TONIGHT...MODELS PROG LOW LEVEL MOISTURE TO HANG TIGHT ACROSS THE
NORTH AND EAST WITH SOME DRYING TAKING PLACE FARTHER WEST. WOULD
EXPECT AREAS OF FOG TO DEVELOP IN AREAS WHERE CLEARING DOES OCCUR.
AS HIGH BEGINS TO BUILD IN FROM CANADA...TEMPERATURES TO BE A BIT
COOLER THAN THE LAST SEVERAL DAYS.

FOR LABOR DAY...DEVELOPING EAST TO NORTHEAST FLOW SHOULD CONTINUE
THE CLOUDS ACROSS THE NORTH AND EAST WITH SOME SUN ELSEWHERE. WITH
CANADIAN HIGH PUSHING SOUTHWARD...BOUNDARY SHOULD BE WELL TO OUR
SOUTH...THUS HAVE REMOVED ANY MENTION OF POPS.

AGAIN TODAY HAVE GENERALLY UNDERCUT GUIDANCE NUMBERS IN CLOUDY
AREAS.

.LSE...NONE.

RABERDING

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
320 AM CDT SUN SEP 3 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ...COUNTY LOCATION....

0255 PM    NORTH BEND                WI   0.75 INCH HAIL
09/03/00   JACKSON                        REPORTED BY SHERIFFS OFFICE

WELVAERT

MNZ079-086>088-094>096-WIZ032-033-030930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
349 AM CDT SUN SEP 3 2000

...SEVERE THUNDERSTORM WATCH #723 FOR SOUTHEAST MINNESOTA AND A SMALL
PORTION OF WESTERN WISCONSIN CANCELLED...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES IN SOUTHEAST MINNESOTA:

DODGE     FILLMORE     MOWER     HOUSTON     OLMSTEAD     WABASHA
WINONA

IN WESTERN WISCONSIN:

BUFFALO     TREMPEAULEAU

THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE FOLLOWING
COUNTIES IN WESTERN AND CENTRAL WISCONSIN:

ADAMS     CLARK     JUNEAU     JACKSON     LA CROSSE     MONROE
TAYLOR

RABERDING

PRELIMINARY LOCAL STORM REPORT...CORRECTED FOR GARBLED TEXT
NATIONAL WEATHER SERVICE LA CROSSE WI
442 AM CDT SUN SEP 3 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ...COUNTY LOCATION....

0350 PM    WARRENS                   WI   0.75 INCH HAIL
09/03/00   MONROE                         REPORTED BY LOCAL SPOTTER

0400 PM    ELROY                     WI   WIND DAMAGE
09/03/00   JUNEAU                         TREE DOWN AND KNOCKED DOWN
                                          DOWN POWER LINE.  RELAYED BY
                                          DISPATCH FROM UTILITY.

WELVAERT

WIZ017-029-034-041>044-053-031030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
450 AM CDT SUN SEP 3 2000

...SEVERE THUNDERSTORM WATCH #723 WILL BE ALLOWED TO EXPIRE...

ALTHOUGH SCATTERED STRONG THUNDERSTORMS CONTINUE ACROSS THE AREA...
THE THREAT OF SEVERE WEATHER HAS GREATLY DIMINISHED. THUS SEVERE
THUNDERSTORM WATCH NUMBER 723 WILL BE ALLOWED TO EXPIRE AT 5 AM.

RABERDING