ZCZC MIATCPAT1 ALL TTAA00 KNHC DDHHMM BULLETIN TROPICAL STORM ANDREA ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL012013 1100 AM EDT THU JUN 06 2013 ...TROPICAL STORM CONDITIONS BEGINNING TO MOVE ONSHORE THE WEST COAST OF FLORIDA... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...28.2N 84.3W ABOUT 110 MI...180 KM W OF TAMPA FLORIDA ABOUT 110 MI...180 KM SSE OF APALACHICOLA FLORIDA MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NE OR 35 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE WEST COAST OF FLORIDA FROM BOCA GRANDE TO INDIAN PASS * FLAGLER BEACH FLORIDA TO CAPE CHARLES LIGHT VIRGINIA * PAMLICO AND ALBEMARLE SOUNDS * LOWER CHESAPEAKE BAY SOUTH OF NEW POINT COMFORT A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1100 AM EDT...1500 UTC...THE CENTER OF TROPICAL STORM ANDREA WAS LOCATED NEAR LATITUDE 28.2 NORTH...LONGITUDE 84.3 WEST. ANDREA IS MOVING TOWARD THE NORTHEAST NEAR 15 MPH...24 KM/H. A NORTHEASTWARD ACCELERATION IS EXPECTED DURING THE NEXT 48 HOURS. ON THE FORECAST TRACK...THE CENTER OF ANDREA WILL REACH THE COAST OF THE BIG BEND AREA OF FLORIDA LATER TODAY...AND THEN MOVE NORTHEASTWARD NEAR THE EAST COAST OF THE UNITED STATES THROUGH SATURDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/H...WITH HIGHER GUSTS. NO SIGNIFICANT CHANGE IN STRENGTH IS EXPECTED BEFORE THE CENTER REACHES THE COAST LATER TODAY. SOME WEAKENING IS FORECAST TONIGHT AND EARLY FRIDAY WHILE THE CENTER OF ANDREA MOVES OVER LAND. ANDREA SHOULD LOSE TROPICAL CHARACTERISTICS IN ABOUT 36 TO 48 HOURS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM TO THE EAST OF THE CENTER. THE STRONGEST WINDS ARE LIKELY OCCURRING IN A BAND OF THUNDERSTORMS THAT IS MOVING ONSHORE THE WEST COAST OF FLORIDA. A WIND GUST TO 48 MPH...78 KM/H WAS RECENTLY REPORTED AT ST. PETERSBURG FLORIDA. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 997 MB...29.44 INCHES. HAZARDS AFFECTING LAND ---------------------- STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING WATERS. THE WATER COULD REACH THE FOLLOWING HEIGHTS ABOVE GROUND IF THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE... TAMPA BAY NORTHWARD TO APALACHICOLA...2 TO 5 FT FLORIDA WEST COAST SOUTH OF TAMPA BAY...1 TO 2 FT FLAGLER BEACH NORTH TO CAPE CHARLES LIGHT...1 TO 2 FT THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST NEAR AND TO THE SOUTH OF THE FLORIDA LANDFALL LOCATION. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE TIMING OF THE SURGE AND THE TIDAL CYCLE... AND CAN VARY GREATLY OVER SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE SEE PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE. RAINFALL...ANDREA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 3 TO 6 INCHES OVER MUCH OF THE FLORIDA PENINSULA...EASTERN PARTS OF THE FLORIDA PANHANDLE...SOUTHEASTERN GEORGIA...AND EASTERN SOUTH CAROLINA...WITH ISOLATED MAXIMUM AMOUNTS OF 10 INCHES POSSIBLE. TOTAL RAIN ACCUMULATIONS OF 2 TO 4 INCHES ARE ALSO EXPECTED OVER EASTERN NORTH CAROLINA AND SOUTHEASTERN VIRGINIA. WIND...TROPICAL STORM CONDITIONS ARE LIKELY BEGINNING ALONG THE WEST COAST OF FLORIDA. THESE CONDITIONS WILL GRADUALLY SPREAD NORTHWARD ALONG THE UNITED STATES EAST COAST DURING THE NEXT 24 TO 36 HOURS. TORNADOES...A FEW TORNADOES ARE POSSIBLE OVER THE FLORIDA PENINSULA TODAY. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...200 PM EDT. NEXT COMPLETE ADVISORY...500 PM EDT. $$ FORECASTER BERG/BEVEN NNNN