Saturday, July 19, 2008

Tornado Watch 705

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 705
NWS STORM PREDICTION CENTER NORMAN OK
525 PM CDT SAT JUL 19 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN IOWA
SOUTHEAST MINNESOTA
CENTRAL AND WESTERN WISCONSIN
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 525 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHEAST OF
WAUSAU WISCONSIN TO 40 MILES SOUTH OF FORT DODGE IOWA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
DISCUSSION...STRONG/SEVERE THUNDERSTORMS EXPECTED TO CONTINUE ESEWD
ACROSS WW THIS EVENING...INTO MODERATE TO STRONG INSTABILITY. LATE
AFTERNOON STORMS HAVE BEEN LOOSELY ORGANIZED IN THE FORM OF CLUSTERS
AND A FEW SUPERCELLS...WITH SHEAR REMAINING SUPPORTIVE OF SUPERCELLS
AND POSSIBLE EVOLUTION INTO BOW SEGMENTS THIS EVENING. LARGE HAIL
AND DAMAGING WINDS...ALONG WITH HEAVY RAINFALL...ARE EXPECTED OVER
MUCH OF THE WATCH AREA. IN ADDITION...ISOLATED TORNADOES REMAIN
POSSIBLE AS STORMS INTERACT WITH SURFACE BOUNDARY OVER CENTRAL WI
AND INGEST VERY UNSTABLE AIR ACROSS NRN IA.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28030.
...EVANS
IOWA COUNTIES INCLUDED ARE
ALLAMAKEE BLACK HAWK BOONE
BREMER BUTLER CALHOUN
CARROLL CERRO GORDO CHICKASAW
CLAYTON CRAWFORD FAYETTE
FLOYD FRANKLIN GREENE
GRUNDY HAMILTON HANCOCK
HARDIN HOWARD HUMBOLDT
MARSHALL MITCHELL POCAHONTAS
SAC STORY TAMA
WEBSTER WINNESHIEK WORTH
WRIGHT
MINNESOTA COUNTIES INCLUDED ARE
FILLMORE HOUSTON WINONA
WISCONSIN COUNTIES INCLUDED ARE
ADAMS BUFFALO CLARK
CRAWFORD JACKSON JUNEAU
LA CROSSE MARATHON MONROE
PORTAGE SHAWANO TAYLOR
TREMPEALEAU VERNON WAUPACA
WAUSHARA WOOD

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