POST-TROPICAL CYCLONE SANDY ADVISORY NUMBER 33 NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD AL182012 1100 AM EDT TUE OCT 30 2012 ...POST-TROPICAL CYCLONE SANDY SLOWLY MOVING WESTWARD WHILE WEAKENING ACROSS SOUTHERN PENNSYLVANIA... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...40.2N 78.4W ABOUT 120 MILES...190 KM...ESE OF PITTSBURGH PENNSYLVANIA. ABOUT 145 MILES...235KM...W OF PHILADELPHIA PENNSYLVANIA. MAXIMUM SUSTAINED WINDS...45 MPH...72 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 10 MPH...16 KM/H MINIMUM CENTRAL PRESSURE...983 MB...29.0 INCHES WATCHES AND WARNINGS -------------------- SUMMARY OF WATCHES AND WARNINGS IN EFFECT... HIGH WIND WARNINGS ARE IN EFFECT ALONG THE CENTRAL TO SOUTHERN APPALACHIANS AND ACROSS PORTIONS OF THE GREAT LAKES. STORM WARNINGS REMAIN IN EFFECT ALONG THE MID-ATLANTIC AND NEW ENGLAND COAST...FROM VIRGINIA TO MASSACHUSETTS. STORM WARNINGS ARE ALSO IN EFFECT ACROSS THE GREAT LAKES. FLOOD AND COASTAL FLOOD WATCHES...WARNINGS...AND ADVISORIES ARE IN EFFECT OVER PORTIONS OF THE MID-ATLANTIC AND NORTHEAST STATES. BLIZZARD WARNINGS REMAIN IN EFFECT ALONG THE HIGHER ELEVATIONS OF THE CENTRAL APPALACHIANS. WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES HAVE BEEN ISSUED FOR EXTREME WESTERN MARYLAND AND SOUTHWESTWARD INTO EASTERN TENNESSEE...EASTERN KENTUCKY...AND EXTREME WESTERN NORTH CAROLINA. FOR INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE AT WWW.WEATHER.GOV. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1100 AM EDT...1500 UTC...THE CENTER OF SANDY WAS LOCATED NEAR LATITUDE 40.2 NORTH...AND LONGITUDE 78.4 WEST. THE POST-TROPICAL CYCLONE WAS MOVING TOWARD THE WEST AT 10 MPH...16 KM/H. SANDY HAS SLOWED IN FORWARD MOTION AND IS EXPECTED TO CONTINUE ITS WESTWARD TRACK ACROSS SOUTHERN PENNSYLVANIA THIS AFTERNOON...AND SHOULD TAKE A TURN TOWARD WESTERN NEW YORK TONIGHT. THE CYCLONE WILL MOVE INTO CANADA ON WEDNESDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 45 MPH...72 KM/H...WITH HIGHER GUSTS. MINIMUM CENTRAL PRESSURE IS 983 MB...29.0 INCHES. HAZARDS ------- WIND...STRONG WINDS WILL CONTINUE INTO THIS AFTERNOON OVER PORTIONS OF THE NORTHEAST...CENTRAL/SOUTHERN APPALACHIANS...AND ACROSS THE GREAT LAKES. STORM SURGE...EVEN THOUGH WATER LEVELS ALONG THE COAST HAVE BEEN SUBSIDING...THE COMBINATION OF STORM SURGE AND THE TIDE COULD STILL CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING WATERS...ESPECIALLY IN AREAS APPROACHING HIGH TIDE. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND AT THE TIME OF HIGH TIDE... PAMLICO AND ALBEMARLE SOUNDS...2 TO 4 FT UPPER AND MIDDLE CHESAPEAKE BAY AND DELAWARE BAY...2 TO 4 FT DELMARVA PENINSULA NORTHWARD THROUGH THE JERSEY SHORE...1 TO 3 FT NEW YORK NORTHWARD TO MASSACHUSETTS...1 TO 2 FT DUE TO STRONG AND PERSISTENT NORTHERLY WINDS...COASTAL FLOODING ALONG PORTIONS OF THE GREAT LAKES IS POSSIBLE. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER SHORT DISTANCES. THE SURGE COULD BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES ALONG PORTIONS OF THE COAST EXPOSED TO THE ATLANTIC OCEAN. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE SEE PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE. RAINFALL...ADDITIONAL RAINFALL ACCUMULATIONS OF UP TO AN INCH ARE EXPECTED FROM THE EASTERN GREAT LAKES...ACROSS THE MID-ATLANTIC AND INTO SOUTHERN NEW ENGLAND...BRINGING STORM TOTAL PRECIPITATION AMOUNTS OF 6 TO 10 INCHES ACROSS THE MID-ATLANTIC REGION FROM SOUTHERN NEW JERSEY ACROSS DELAWARE...MARYLAND...NORTHERN VIRGINIA AND SOUTHERN PENNSYLVANIA. STORM TOTAL PRECIPITATION AMOUNT OF 2 TO 5 INCHES LIKELY ACROSS WESTERN PENNSYLVANIA...EASTERN OHIO AND WESTERN NEW YORK. PRECIPITATION AMOUNTS OF 1 TO 2 INCHES POSSIBLE OVER EASTERN MAINE. SNOWFALL...SNOWFALL STORM TOTALS OF 2 TO 3 FEET ARE EXPECTED IN THE MOUNTAINS OF WEST VIRGINIA INTO FAR WESTERN MARYLAND. SNOWFALL STORM TOTALS OF 1 TO 2 FEET ARE EXPECTED IN THE MOUNTAINS OF SOUTHWESTERN VIRGINIA INTO EASTERN PORTIONS OF KENTUCKY...IN THE MOUNTAINS ALONG THE NORTH CAROLINA/TENNESSEE BORDER. SURF...DANGEROUS SURF CONDITIONS WILL CONTINUE FROM FLORIDA THROUGH NEW ENGLAND FOR THE NEXT COUPLE OF DAYS. RAINFALL TOTALS --------------- SELECTED STORM TOTAL RAINFALL IN INCHES THROUGH 11 AM EDT ...WASHINGTON DC... WASHINGTON/NATIONAL 4.66 ...DELAWARE... DOVER AFB 8.51 WILMINGTON ARPT 4.23 ...MASSACHUSETTS... EAST MILTON 3.00 FITCHBURG 2.43 BEDFORD/HANSCOM FIELD 2.29 NORWOOD MEMORIAL ARPT 2.02 NANTUCKET MEMORIAL ARPT 2.00 ...MARYLAND... PATUXENT RIVER NAS 8.20 SALISBURY RGNL ARPT 7.24 OCEAN CITY MUNI ARPT 7.20 ANNAPOLIS - US NAVAL ACADEMY 6.94 BALIMORE SCIENCE CENTER 6.94 BALTIMORE/WASHINGTON INTL ARPT 6.51 HAGERSTOWN RGNL ARPT 4.76 ...NORTH CAROLINA... HATTERAS/BILLY MITCHELL AP 6.26 ELIZABETH CITY MUNI ARPT 3.46 NEW BERN/CRAVEN CO. ARPT 2.34 ...NEW HAMPSHIRE... JAFFREY MUNI ARPT 3.81 MOUNT WASHINGTON 2.44 NASHUA/BOIRE FIELD 2.36 MANCHESTER AIRPARK 1.76 ...NEW JERSEY... MILLVILLE MUNI ARPT 5.37 ATLANTIC CITY INTL ARPT 4.13 WILDWOOD - CAPE MAY CO. ARPT 3.11 MCGUIRE AFB/WRIGHTSTOWN 2.57 MOUNT HOLLY 1.85 ...NEW YORK... NIAGARA FALLS INTL ARPT 3.02 JAMESTOWN AIRPORT 2.57 DUNKIRK AIRPORT 2.27 DANSVILLE MUNI ARPT 2.20 ROCHESTER/MONROE CO. ARPT 2.19 BUFFALO WFO 1.98 ...OHIO... CLEVELAND-HOPKINS INTL ARPT 4.07 LORAIN/ELYRIA 3.85 ASHTABULA CO. ARPT 3.67 WOOSTER/WAYNE CO. ARPT 2.98 YOUNGSTOWN MUNI ARPT 2.87 AKRON/FULTON INTL ARPT 2.70 NEW PHILADELPHIA/CLEVER FIELD 2.37 MANSFIELD/LAHM MUNI ARPT 2.06 ZANESVILLE MUNI ARPT 1.66 CLEVELAND/BURKE LAKEFRONT 1.51 ...PENNSYLVANIA... JOHNSTOWN/CAMBRIA CO. ARPT 3.79 YORK ARPT 3.77 ERIE INTL ARPT 3.35 DU BOIS-JEFFERSON COUNTY ARPT 3.04 ALTOONA/BLAIR CO. ARPT 2.97 PITTSBURGH INTL ARPT 2.71 BUTLER CO. AIRPORT 2.59 CLEARFIELD-LAWRENCE ARPT 2.56 POTTSTOWN LIMERICK ARPT 2.55 PHILADELPHIA INTL ARPT 2.41 ...RHODE ISLAND... PAWTUCKET/NORTH CENTRAL ST ARPT 1.53 ...VIRGINIA... OCEANA NAS/SOUCEK 9.57 WALLOPS ISLAND 8.45 NEWPORT NEWS/WILLIAMSBURG INL AP 7.35 LANGLEY AFB/HAMPTON 7.25 FORT EUSTIS/FELKER 6.79 NORFOLK INTL ARPT 5.93 WASHINGTON/DULLES 5.40 WEST POINT 4.31 NORFOLK NAS 3.35 RICHMOND 2.91 ...WEST VIRGINIA... MORGANTOWN/HART FIELD 2.95 BECKLEY MEMORIAL ARPT 2.48 HUNTINGTON/TRI-STATE ARPT 2.36 PARKERSBURG/WILSON 2.13 WHEELING/OHIO CO. ARPT 2.09 SNOWFALL TOTALS --------------- SELECTED STORM TOTAL SNOWFALL IN INCHES THROUGH 11 AM EDT ..KENTUCKY... LYNCH 3S 12.0 ELKO 1NW 9.0 BENHAM 3S 6.0 ...MARYLAND... REDHOUSE 26.0 GARRETT 26.0 DEEP CREEK LAKE 20.0 OAKLAND 12.0 ...NORTH CAROLINA... BAKERSVILLE 6N 8.0 FAUST 4NW 6.0 LANSING 6NW 5.0 CRESTON 4.0 ...PENNSYLVANIA... CHAMPION 4SE 13.0 MOUNT DAVIS 9.0 LAUREL SUMMIT 6.0 ...VIRGINIA... TAZEWELL 1E 5.0 CLINTWOOD 2WSW 4.0 BURKES GARDEN 3.0 ...WEST VIRGINIA... DAVIS 23.0 BAYARD 19.0 TERRA ALTA 1N 18.0 WEBSTER SPINGS 17.0 FAYETTEVILLE 11E 15.0 SHADY SPRING 14.0 MORGANTOWN 3SE 12.0 SNOWSHOE 1S 11.0 WIND GUSTS --------------- ISLIP NY 90 MPH 2 N TOMPKINSVILLE NJ 90 MPH SURF CITY NJ 89 MPH TUCKERTON NJ 88 MPH 1 N MONTCLAIR NJ 88 MPH MADISON CT 85 MPH PLUM ISLAND NY 84 MPH CUTTYHUNK MA 83 MPH DENNISVILLE 81 MPH SANDY HOOK NJ 81 MPH WELLFLEET MA 81 MPH JFK NY 79 MPH NEWARK NJ 78 MPH ATLANTIC CITY NJ 77 MPH GROTON CT 76 MPH HARVEY CEDARS NJ 75 MPH NEXT ADVISORY ------------- NEXT ADVISORY ISSUED AT 500 PM EDT. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR FURTHER INFORMATION ON THIS STORM. GERHARDT/KREKELER FORECAST POSITIONS ------------------ INITIAL 30/1500Z 40.2N 78.4W POST-TROP/EXTRATROP 12HR VT 31/0000Z 40.7N 79.6W POST-TROP/EXTRATROP 24HR VT 31/1200Z 42.3N 79.5W POST-TROP/EXTRATROP 36HR VT 01/0000Z 46.2N 77.7W POST-TROP/EXTRATROP 48HR VT 01/1200Z 48.9N 76.4W POST-TROP/EXTRATROP 72HR VT 02/1200Z ABSORBED