

000 

WWUS20 KWNS 191105

SEL1

SPC WW 191105

FLZ000-CWZ000-192000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 841

NWS STORM PREDICTION CENTER NORMAN OK

705 AM EDT TUE AUG 19 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN AND EAST CENTRAL FLORIDA

       COASTAL WATERS



EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 705 AM UNTIL

400 PM EDT.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 10 MILES EAST NORTHEAST OF

DAYTONA BEACH FLORIDA TO 65 MILES SOUTH SOUTHWEST OF WEST PALM

BEACH FLORIDA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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.



OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 840. WATCH NUMBER 840 WILL NOT BE IN EFFECT AFTER

705 AM EDT.



DISCUSSION...TROPICAL STORM FAY WILL CONTINUE TO MOVE NNEWD TOWARD

THE LAKE OKEECHOBEE AREA TODAY...AND THE EAST CENTRAL FL COAST

TONIGHT.  CONVECTIVE BANDS WILL SPREAD NWD ALONG THE FL E COAST AS

THE CYCLONE MOVES NNEWD...AND THE REGION OF STRONGER LOW-LEVEL SHEAR

AND TORNADO POTENTIAL WILL LIKEWISE SHIFT NWD ALONG THE COAST DURING

THE DAY.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 17035.





...THOMPSON

