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| #553075 (Received by flhurricane at: 1:44 AM 27.Oct.2012) TCPAT3 BULLETIN HURRICANE SANDY INTERMEDIATE ADVISORY NUMBER 19A NWS NATIONAL HURRICANE CENTER MIAMI FL AL182012 200 AM EDT SAT OCT 27 2012 ...SANDY GRADUALLY PULLING AWAY FROM THE BAHAMAS... ...LARGE WIND FIELD CONTINUES TO EXPAND... SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...28.1N 76.9W ABOUT 120 MI...190 KM N OF GREAT ABACO ISLAND ABOUT 375 MI...600 KM SSE OF CHARLESTON SOUTH CAROLINA MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...969 MB...28.61 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * FLORIDA EAST COAST FROM NORTH OF JUPITER INLET TO SAINT AUGUSTINE * SOUTH SANTEE RIVER TO DUCK...INCLUDING PAMLICO AND ALBEMARLE SOUNDS * GREAT ABACO AND GRAND BAHAMA ISLANDS A TROPICAL STORM WATCH IS IN EFFECT FOR... * SAVANNAH RIVER TO SOUTH SANTEE RIVER * FLORIDA EAST COAST FROM NORTH OF SAINT AUGUSTINE TO FERNANDINA BEACH * BERMUDA IN ADDITION...GALE...STORM AND HIGH WIND WATCHES ARE IN EFFECT FOR AREAS NORTH OF THE TROPICAL STORM WARNING AREA. SEE STATEMENTS FROM LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICES. INTERESTS ELSEWHERE ALONG THE EAST COAST OF THE UNITED STATES SHOULD MONITOR THE PROGRESS OF SANDY. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED STATES... INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 200 AM EDT...0600 UTC...THE CENTER OF HURRICANE SANDY WAS LOCATED BY AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT NEAR LATITUDE 28.1 NORTH...LONGITUDE 76.9 WEST. SANDY IS MOVING TOWARD THE NORTH- NORTHEAST NEAR 7 MPH...11 KM/H. THIS GENERAL MOTION IS EXPECTED TO CONTINUE ON SATURDAY WITH AN INCREASE IN FORWARD SPEED. A TURN TOWARD THE NORTHEAST IS EXPECTED SATURDAY NIGHT OR SUNDAY. ON THE FORECAST TRACK...THE CENTER OF SANDY WILL CONTINUE MOVING AWAY FROM THE NORTHWESTERN BAHAMAS OVERNIGHT. MAXIMUM SUSTAINED WINDS REMAIN NEAR 75 MPH...120 KM/H...WITH HIGHER GUSTS. SANDY IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SLOW WEAKENING IS FORECAST DURING THE NEXT DAY OR TWO...AND SANDY MAY WEAKEN TO A TROPICAL STORM ON SATURDAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 435 MILES...705 KM. NOAA BUOY 41010 RECENTLY REPORTED A SUSTAINED WIND OF 54 MPH...86 KM/H...AND A WIND GUST OF 72 MPH...115 KM/H. THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY THE AIRCRAFT IS 969 MB...28.61 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS WILL CONTINUE IN GREAT ABACO AND GRAND BAHAMA ISLANDS FOR THE NEXT FEW HOURS. TROPICAL STORM CONDITIONS ARE EXPECTED TO CONTINUE OVER THE WARNING AREA ALONG THE EAST COAST OF FLORIDA OVERNIGHT. TROPICAL STORM CONDITIONS ARE EXPECTED IN THE TROPICAL STORM WARNING AREA IN THE CAROLINAS SATURDAY AND SATURDAY NIGHT. TROPICAL STORM CONDITIONS ARE POSSIBLE IN THE WATCH AREAS TONIGHT THROUGH SATURDAY NIGHT. RAINFALL...ADDITIONAL RAINFALL ACCUMULATIONS OF 1 TO 2 INCHES ARE EXPECTED OVER PORTIONS OF THE BAHAMAS...WITH ISOLATED MAXIMUM TOTALS OF 12 INCHES POSSIBLE. ADDITIONAL RAINFALL ACCUMULATIONS OF 1 TO 2 INCHES ARE EXPECTED OVER PORTIONS OF EASTERN FLORIDA...WITH ISOLATED MAXIMUM AMOUNTS OF 6 INCHES POSSIBLE. RAINFALL TOTALS OF 3 TO 6 INCHES ARE POSSIBLE OVER FAR EASTERN NORTH CAROLINA. STORM SURGE...THE COMBINATION OF A DANGEROUS 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 DEPTHS ABOVE GROUND IF THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE... BAHAMAS WITHIN THE WARNING AREA...3 TO 5 FT FLORIDA COAST WITHIN WARNING AREA...1 TO 3 FT NORTH CAROLINA WITHIN THE WARNING AREA...3 TO 5 FT REMAINDER OF NORTH CAROLINA AND SE VIRGINIA INCLUDING LOWER CHESAPEAKE BAY...2 TO 4 FT SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER SHORT DISTANCES. GIVEN THE LARGE WIND FIELD ASSOCIATED WITH SANDY...ELEVATED WATER LEVELS COULD SPAN MULTIPLE TIDE CYCLES RESULTING IN REPEATED PERIODS OF COASTAL AND BAYSIDE FLOODING. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. SURF...DANGEROUS SURF CONDITIONS ARE OCCURRING FROM FLORIDA THROUGH THE CAROLINAS AND WILL CONTINUE FOR THE NEXT COUPLE OF DAYS. THESE CONDITIONS ARE EXPECTED TO SPREAD INTO THE MID-ATLANTIC AND NORTHEASTERN STATES OVER THE WEEKEND. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...500 AM EDT. $$ FORECASTER BRENNAN |
