

000 

WWUS20 KWNS 191946

SEL3

SPC WW 191946

FLZ000-CWZ000-200500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 843

NWS STORM PREDICTION CENTER NORMAN OK

340 PM EDT TUE AUG 19 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EAST-CENTRAL AND NORTHEAST FLORIDA PENINSULA

       COASTAL WATERS



EFFECTIVE THIS TUESDAY AFTERNOON AND WEDNESDAY MORNING FROM 340

PM UNTIL 100 AM EDT.



TORNADOES...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS

LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH NORTHWEST OF

DAYTONA BEACH FLORIDA TO 45 MILES SOUTH SOUTHEAST OF VERO BEACH

FLORIDA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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...CONTINUE...WW 841...WW 842...



DISCUSSION...A FAVORABLE COLLOCATION OF STRONG LOW-LEVEL SHEAR AND

MODEST INSTABILITY WILL PERSIST THIS EVENING INTO TONIGHT IN

RIGHT-FORWARD QUADRANT OF TROPICAL STORM FAY.  AS SUCH...THE THREAT

FOR SUPERCELLS CAPABLE OF A FEW TORNADOES WILL CONTINUE WITHIN

PRIMARY SPIRAL BAND WHICH IS BEING MAINTAINED FROM N OF THE CENTER

SSEWD THROUGH THE ERN SEMI-CIRCLE OF THE TROPICAL SYSTEM.



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

TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI

WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 16035.





...MEAD/HART

