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| #554074 (Received by flhurricane at: 11:02 PM 29.Oct.2012) TCPAT3 BULLETIN POST-TROPICAL CYCLONE SANDY ADVISORY NUMBER 31 NWS NATIONAL HURRICANE CENTER MIAMI FL AL182012 1100 PM EDT MON OCT 29 2012 ...SANDY STILL PACKING HURRICANE-FORCE WINDS... ...NEXT PUBLIC ADVISORY TO BE ISSUED BY THE HYDROMETEOROLOGICAL PREDICTION CENTER... SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...39.8N 75.4W ABOUT 10 MI...15 KM SW OF PHILADELPHIA PENSYLVANIA MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NW OR 305 DEGREES AT 18 MPH...30 KM/H MINIMUM CENTRAL PRESSURE...952 MB...28.11 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... THERE ARE NO COASTAL TROPICAL CYCLONE WARNINGS IN EFFECT. HOWEVER...THERE ARE NON-TROPICAL HIGH-WIND WARNINGS IN EFFECT FOR PORTIONS OF THE MID-ATLANTIC AND NEW ENGLAND STATES. PLEASE SEE STATEMENTS FROM LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICES. HURRICANE-FORCE WIND GUSTS ARE POSSIBLE ALONG PORTIONS OF THE COAST BETWEEN CHINCOTEAGUE VIRGINIA AND CHATHAM MASSACHUSETTS DURING THE NEXT FEW HOURS. THIS INCLUDES THE TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT...THE MIDDLE AND UPPER CHESAPEAKE BAY...DELAWARE BAY...AND THE COASTS OF THE NORTHERN DELMARVA PENINSULA...NEW JERSEY...THE NEW YORK CITY AREA...LONG ISLAND...CONNECTICUT...AND RHODE ISLAND. TROPICAL-STORM-FORCE WINDS ARE EXPECTED TO CONTINUE NORTH OF CHATHAM THROUGH MUCH OF NEW ENGLAND...AND OVER THE LOWER CHESAPEAKE BAY... AND SOUTH OF CHINCOTEAGUE TO EXTREME NORTHEASTERN NORTH CAROLINA. 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 PM EDT...0300 UTC...THE CENTER OF POST-TROPICAL CYCLONE SANDY WAS LOCATED NEAR LATITUDE 39.8 NORTH...LONGITUDE 75.4 WEST. THE POST-TROPICAL CYCLONE IS MOVING TOWARD THE NORTHWEST AT 18 MPH...30 KM/H. A WEST-NORTHWEST TO NORTHWEST MOTION WITH SOME REDUCTION IN FORWARD SPEED IS EXPECTED THROUGH TUESDAY. A TURN TOWARD THE NORTH AND NORTHEAST IS FORECAST TUESDAY NIGHT. ON THE FORECAST TRACK...THE CENTER OF SANDY IS EXPECTED TO MOVE ACROSS PENNSYLVANIA DURING THE NEXT DAY OR SO...THEN MOVE INTO WESTERN NEW YORK TUESDAY NIGHT. MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/H...WITH HIGHER GUSTS. THE STRONGEST WINDS ARE OCCURRING OVER WATER TO THE EAST OF THE CENTER. STEADY WEAKENING IS FORECAST DURING THE NEXT 48 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 90 MILES...150 KM...TO THE EAST OF THE CENTER. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 485 MILES...780 KM FROM THE CENTER. A SUSTAINED WIND OF 56 MPH...WITH A GUST TO 71 MPH WAS RECENTLY REPORTED AT LAGUARDIA AIRPORT IN NEW YORK. A TEXAS TECH UNIVERSITY AUTOMATED OBSERVING SITE HAS REPORTED SUSTAINED WINDS OF 50 MPH...WITH A GUST TO 67 MPH...ALONG THE COAST OF NORTHERN NEW JERSEY WITHIN THE PAST HOUR. THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON SURFACE DATA IS 952 MB...28.11 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL-STORM-FORCE WINDS WILL CONTINUE OVER PORTIONS OF THE MID-ATLANTIC STATES FROM VIRGINIA NORTHWARD THROUGH NEW ENGLAND. HURRICANE-FORCE WIND GUSTS ARE POSSIBLE ALONG THE COAST OF NEW JERSEY...NEW YORK...SOUTHERN MASSACHUSETTS AND RHODE ISLAND DURING THE NEXT FEW HOURS. IT IS IMPORTANT TO NOTE THAT WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS WILL BE SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. STORM SURGE...THE COMBINATION OF AN EXTREMELY 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... NC NORTH OF SURF CITY INCLUDING PAMLICO/ALBEMARLE SOUNDS...2 TO 4 FT SE VA AND DELMARVA INCLUDING LOWER CHESAPEAKE BAY...2 TO 4 FT UPPER AND MIDDLE CHESAPEAKE BAY...1 TO 3 FT LONG ISLAND SOUND...RARITAN BAY...AND NEW YORK HARBOR...6 TO 11 FT ELSEWHERE FROM OCEAN CITY MD TO THE CT/RI BORDER...4 TO 8 FT CT/RI BORDER TO THE SOUTH SHORE OF CAPE COD INCLUDING BUZZARDS BAY AND NARRAGANSETT BAY...3 TO 6 FT CAPE COD TO THE MA/NH BORDER INCLUDING CAPE COD BAY...2 TO 4 FT MA/NH BORDER TO THE U.S./CANADA BORDER...1 TO 3 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 AND EXTENDED PERIODS OF COASTAL AND BAYSIDE FLOODING. IN ADDITION... ELEVATED WATERS COULD OCCUR FAR REMOVED FROM THE CENTER OF SANDY. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE SEE PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE. RAINFALL...RAINFALL TOTALS OF 3 TO 6 INCHES ARE EXPECTED OVER FAR NORTHEASTERN NORTH CAROLINA WITH ISOLATED MAXIMUM TOTALS OF 8 INCHES POSSIBLE. RAINFALL AMOUNTS OF 4 TO 8 INCHES ARE EXPECTED OVER PORTIONS OF THE MID ATLANTIC STATES...INCLUDING THE DELMARVA PENINSULA...WITH ISOLATED MAXIMUM AMOUNTS OF 12 INCHES POSSIBLE. RAINFALL AMOUNTS OF 1 TO 3 INCHES WITH ISOLATED MAXIMUM AMOUNTS OF 5 INCHES ARE POSSIBLE FROM THE SOUTHERN TIER OF NEW YORK STATE NORTHEASTWARD THROUGH NEW ENGLAND. SNOWFALL..SNOW ACCUMULATIONS OF 2 TO 3 FEET ARE EXPECTED IN THE MOUNTAINS OF WEST VIRGINIA WITH LOCALLY HIGHER TOTALS TODAY THROUGH WEDNESDAY. SNOWFALL OF 1 TO 2 FEET IS EXPECTED IN THE MOUNTAINS OF SOUTHWESTERN VIRGINIA TO THE KENTUCKY BORDER...WITH 12 TO 18 INCHES OF SNOW EXPECTED IN THE MOUNTAINS NEAR THE NORTH CAROLINA/TENNESSEE BORDER AND IN THE MOUNTAINS OF WESTERN MARYLAND. SURF...DANGEROUS SURF CONDITIONS WILL CONTINUE FROM FLORIDA THROUGH NEW ENGLAND FOR THE NEXT COUPLE OF DAYS. NEXT ADVISORY ------------- THIS IS THE LAST PUBLIC ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON SANDY. FUTURE INFORMATION ON THIS SYSTEM CAN BE FOUND IN PUBLIC ADVISORIES ISSUED BY THE HYDROMETEOROLOGICAL PREDICTION CENTER...UNDER AWIPS HEADER TCPAT3 AND WMO HEADER WTNT33 KWNH...BEGINNING AT 500 AM EDT. THESE PUBLIC ADVISORIES WILL ALSO BE AVAILABLE ON THE NHC WEBSITE. $$ FORECASTER BROWN/ROBERTS |
