000 WTNT34 KNHC 281152 TCPAT4 BULLETIN HURRICANE IRENE INTERMEDIATE ADVISORY NUMBER 32A NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011 800 AM EDT SUN AUG 28 2011 ...CENTER OF IRENE NEARING NEW YORK CITY... SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...40.3N 74.1W ABOUT 40 MI...60 KM SSW OF NEW YORK CITY MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...NNE OR 20 DEGREES AT 25 MPH...41 KM/H MINIMUM CENTRAL PRESSURE...963 MB...28.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE TROPICAL STORM WARNING FROM OCRACOKE INLET NORTH CAROLINA TO CAPE CHARLES LIGHT VIRGINIA...INCLUDING THE PAMLICO...ALBEMARLE... AND CURRITUCK SOUNDS AND CHESAPEAKE BAY SOUTH OF NEW POINT COMFORT...IS DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * CHINCOTEAGUE VIRGINIA NORTHWARD TO SAGAMORE BEACH MASSACHUSETTS... INCLUDING DELAWARE BAY...NEW YORK CITY...LONG ISLAND...LONG ISLAND SOUND...COASTAL CONNECTICUT AND RHODE ISLAND...BLOCK ISLAND... MARTHAS VINEYARD AND NANTUCKET A TROPICAL STORM WARNING IS IN EFFECT FOR... * NORTH OF CAPE CHARLES LIGHT TO SOUTH OF CHINCOTEAUGUE VIRGINIA... INCLUDING CHESAPEAKE BAY NORTH OF NEW POINT COMFORT AND THE TIDAL POTOMAC * NORTH OF SAGAMORE BEACH TO EASTPORT MAINE * UNITED STATES/CANADA BORDER NORTHEASTWARD TO FORT LAWRENCE INCLUDING GRAND MANAN * SOUTH COAST OF NOVA SCOTIA FROM FORT LAWRENCE TO PORTERS LAKE INTERESTS ELSEWHERE IN EASTERN CANADA SHOULD MONITOR THE PROGRESS OF IRENE. 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 800 AM EDT...1200 UTC...THE CENTER OF HURRICANE IRENE WAS LOCATED BY AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT AND NOAA DOPPLER RADAR NEAR LATITUDE 40.3 NORTH...LONGITUDE 74.1 WEST. IRENE IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 25 MPH...41 KM/H...AND THIS MOTION WITH A CONTINUED GRADUAL INCREASE IN FORWARD SPEED IS EXPECTED DURING THE NEXT DAY OR SO. ON THE FORECAST TRACK...THE CENTER OF IRENE WILL MOVE NEAR NEW YORK CITY THIS MORNING...AND MOVE INLAND OVER SOUTHERN NEW ENGLAND BY THIS AFTERNOON. IRENE IS FORECAST TO MOVE INTO EASTERN CANADA TONIGHT. MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/H...WITH HIGHER GUSTS. IRENE IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. IRENE IS FORECAST TO WEAKEN AND BECOME A POST-TROPICAL CYCLONE BY TONIGHT OR EARLY MONDAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 125 MILES...205 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 320 MILES...520 KM. GROTON CONNECTICUT RECENTLY REPORTED SUSTAINED WINDS OF 39 MPH...63 KM/H...AND A WIND GUST TO 54 MPH...87 KM/H. BATTERY PARK NEW YORK CITY HAS RECENTLY REPORTED A TOTAL WATER LEVEL NEAR 8.6 FEET. THE LATEST MINIMUM CENTRAL PRESSURE REPORTED BY THE HURRICANE HUNTER AIRCRAFT WAS 963 MB...28.44 INCHES. HAZARDS AFFECTING LAND ---------------------- STORM SURGE...AN EXTREMELY DANGEROUS STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 4 TO 8 FEET ABOVE GROUND LEVEL WITHIN THE HURRICANE WARNING AREA. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE...DESTRUCTIVE...AND LIFE-THREATENING WAVES. HIGHER THAN NORMAL ASTRONOMICAL TIDES ARE OCCURRING THIS WEEKEND. COASTAL AND RIVER FLOODING WILL BE HIGHEST IN AREAS WHERE THE PEAK SURGE OCCURS AROUND THE TIME OF HIGH TIDE. STORM TIDE AND SURGE VALUES ARE VERY LOCATION-SPECIFIC...AND USERS ARE URGED TO CONSULT PRODUCTS ISSUED BY THEIR LOCAL NATIONAL WEATHER SERVICE OFFICES. WATER LEVELS IN THE CHESAPEAKE BAY WILL GRADUALLY SUBSIDE THIS MORNING. RAINFALL...IRENE IS EXPECTED TO PRODUCE RAINFALL ACCUMULATIONS OF 5 TO 10 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 15 INCHES...FROM EASTERN PENNSYLVANIA...DELAWARE AND NEW JERSEY INTO EASTERN NEW YORK AND INTERIOR NEW ENGLAND. THESE RAINS...COMBINED WITH HEAVY RAINS OVER THE PAST FEW WEEKS...COULD CAUSE WIDESPREAD FLOODING... LIFE-THREATENING FLASH FLOODS...AND SIGNIFICANT UPROOTING OF TREES DUE TO RAIN-SOFTENED GROUNDS. WIND...TROPICAL STORM FORCE WINDS AND HURRICANE FORCE WINDS... ESPECIALLY IN GUSTS...WILL CONTINUE TO SPREAD NORTHWARD INTO SOUTHERN NEW ENGLAND THIS MORNING. WINDS AFFECTING THE UPPER FLOORS OF HIGH-RISE BUILDINGS WILL BE SIGNIFICANTLY STRONGER THAN THOSE NEAR GROUND LEVEL. TORNADOES...ISOLATED TORNADOES ARE POSSIBLE OVER NORTHERN NEW JERSEY...SOUTHEASTERN NEW YORK...AND EXTREME SOUTHERN NEW ENGLAND THROUGH THIS MORNING. SURF...LARGE SWELLS GENERATED BY IRENE ARE AFFECTING MUCH OF THE EAST COAST OF THE UNITED STATES. THESE SWELLS WILL CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 AM EDT. $$ FORECASTER PASCH/BROWN