Severe Thunderstorm Warning 42, NWS Milwaukee, WI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
955 PM CDT THU MAY 11 2000

FCST FOCUS ON SEVERE WEATHER TONIGHT.

STRONG TO SVR TSTMS MOVING INTO WRN CWA. RECENT HVY RAINS ERLYR
THIS WEEK...AND THIS MORNG IN SW WI HAVE SATURATED UPPER LAYERS
OF SOIL AND BROUGHT RIVER LVLS UP. FLASH FLD GUIDNC SUGGEST THAT HVY
RAINS FROM THE SLOWER MOVG CELLS...PUTTING DWN 1 TO 2 INCHES OF RAIN
IN 3 HRS OR LESS...COULD PUT QUICK RESPONDING RIVERS AND STREAMS IN
FLASH FLOOD. LIMITING FACTOR WILL BE NWD MOVEMENT OF WRM FNTL BNDRY
TAKING TRAINING CELLS FARTHER NORTH. HOWEVER...POTENTIAL EVOLUTION OF
NE IOWA CELLS INTO AN MCS KPS THREAT OVER ALL OF CWA TNT. SPC IS
EXTENDING TOR WATCH ACROSS ALL OF SRN WI.

.MKX...FLASH FLOOD WATCH WI ZNS 46-47...51-52...56>60...62>72.

REM

WIZ046-047-056-057-062-063-067>069-120150-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
818 PM CDT THU MAY 11 2000

...TORNADO WATCH FOR IOWA AND LAFAYETTE COUNTIES UNTIL 12 MIDNIGHT...

SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP ALONG A LINE...FROM
JUST NORTH OF THE DELLS IN SAUK COUNTY...TO NORTHERN CRAWFORD COUNTY.
THE DEVELOPING LINE IS MOVING TO THE EAST NORTHEAST AT 30 MPH.
STRONGER STORMS EXTEND FROM JUST NORTH OF DECORAH...TO EAST OF
WATERLOO...IN NORTHEAST IOWA. THESE STORMS ARE MOVING EAST AT 30 TO
35 MPH.

THESE STORMS ARE EXPECTED TO REACH A WESTERN IOWA...TO WESTERN
LAFAYETTE COUNTY LINE BETWEEN 830 PM AND 9 PM. THEY HAVE PRODUCEdD
TORNADOES...AS WELL AS LARGE HAIL. KEEP UP WITH THE LATEST
FORECASTS...STATEMENTS AND WARNINGS CONCERNING THIS DEVELOPING
SITUATION.

REM

WIZ046-047-056-057-062-063-067>069-120200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
837 PM CDT THU MAY 11 2000

...TORNADO WATCH FOR IOWA AND LAFAYETTE COUNTIES UNTIL 12 MIDNIGHT...

SEVERE THUNDERSTORMS WILL BE CROSSING THE MISSISSIPPI RIVER...NEAR
PRAIRIE DU CHIEN...BETWEEN 830 PM AND 9 PM. THESE STORMS HAVE
PRODUCED TORNADOES AND LARGE HAIL IN NORTHEAST IOWA...AND IN
EXTREME SOUTHEASTERN MINNESOTA. THEY ARE MOVING TO THE EAST AT
35 MPH.

ISOLATED STORMS IN SAUK COUNTY ARE MOVING TO THE NORTHEAST AT 30 TO
35 MPH...AND WILL REACH EASTERN COLUMBIA...AND EASTERN MARQUETTE
COUNTIES BY 9 PM. THESE STORMS WILL PRODUCE HEAVY DOWNPOURS OF
RAIN...AND SMALL HAIL. STAY ALERT AS THESE THUNDERSTORMS MOVE INTO
SOUTHWEST AND SOUTH CENTRAL WISCONSIN. BE PREPARED TO MOVE TO A
SAFE SHELTER IF THESE STORMS MOVE INTO YOUR AREA. KEEP UP WITH
NATIONAL WEATHER SERVICE STATEMENTS AND WARNINGS CONCERNIN4G THIS
DEVELOPING SITUATION.

REM

WIZ057-063-120330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
955 PM CDT THU MAY 11 2000

THUNDERSTORMS WILL PUSH INTO NORTHERN DANE AND MUCH OF COLUMBIA
COUNTIES THROUGH 11 PM.

THESE THUNDERSTORMS WILL PRODUCE HEAVY RAINS...AND SOME GUSTY WINDS
TO 40 MPH.

SOME CITIES THAT WILL BE AFFECTED INCLUDES...LAKE WISCONSIN
...ARLINGTON...RIO...SAUK CITY...AND WAUNAKEE.

THE STORMS WERE MOVING EAST AT 40 MPH.

HENTZ

LMZ643>646-665-WIZ046-047-051-052-056>060-062>072-120400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1021 PM CDT THU MAY 11 2000

...TORNADO WATCH 266 FOR ALL OF SOUTH CENTRAL AND SOUTHEASTERN
WISCONSIN UNTIL 4 AM...

TORNADO WATCH 266 IS IN EFFECT UNTIL 4 AM CDT FOR ALL OF SOUTH
CENTRAL AND SOUTHEASTERN WISCONSIN. TORNADO WATCH 264...THAT WAS
ORIGINALLY IN EFFECT UNTIL 12 MIDNIGHT...FOR PORTIONS OF SOUTHWEST
WISCONSIN...HAS BEEN REPLACED BY TORNADO WATCH 266.

BE PREPARED TO MOVE TO A SAFE SHELTER IF STORMS MOVE INTO YOUR
AREA. KEEP UP WITH NATIONAL WEATHER SERVICE STATEMENTS AND WARNINGS
CONCERNING THIS SEVERE WEATHER SITUATION.

WIZ056>058-063-064-120400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1034 PM CDT THU MAY 11 2000

...THUNDERSTORMS PRODUCING PEA SIZE HAIL...

THUNDERSTORMS WERE PRODUCING PEA SIZE HAIL...HEAVY RAIN AND GUSTY
WINDS ACROSS COLUMBIA...AND NORTHERN DANE COUNTY.

PEA SIZE HAIL WAS REPORTED IN ARLINGTON AND LODI BETWEEN 1030 AND
1035 PM.

THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME URBAN FLOODING.

THE STORMS WILL AFFECT DODGE COUNTY THROUGH 1130 PM.

HENTZ

WIZ046-047-120415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1041 PM CDT THU MAY 11 2000

...THUNDERSTORMS AFFECTING MARQUETTE AND GREEN LAKE COUNTIES...

THUNDERSTORMS WERE PRODUCING HEAVY RAIN...LIGHTNING STRIKES...AND
GUSTY WINDS...ACROSS MARQUETTE AND GREEN LAKE COUNTIES.  THESE
STORMS MAY ALSO PRODUCE PEA SIZE HAIL.

THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME MINOR URBAN AND
LOW LAND (FLOODING.  THE STORMS WILL AFFECT MARQUETTE AND GREEN LAKE
COUNTIES THROUGH 1130 PM AS THEY MOVE EAST AT 40 MPH.

HENTZ