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| #376855 (Received by flhurricane at: 7:52 PM 17.Sep.2010) TCPAT1 BULLETIN HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 39A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010 800 PM AST FRI SEP 17 2010 ...LARGE HURRICANE IGOR MARCHING STEADILY NORTHWESTWARD... SUMMARY OF 800 PM AST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...24.2N 61.3W ABOUT 600 MI...965 KM SSE OF BERMUDA MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/HR PRESENT MOVEMENT...NW OR 310 DEGREES AT 10 MPH...17 KM/HR MINIMUM CENTRAL PRESSURE...947 MB...27.96 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * BERMUDA A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM- FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. 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 PM AST...0000 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED NEAR LATITUDE 24.2 NORTH...LONGITUDE 61.3 WEST. IGOR IS MOVING TOWARD THE NORTHWEST NEAR 10 MPH...17 KM/HR. THIS GENERAL MOTION WITH SOME INCREASE IN FORWARD SPEED IS EXPECTED TONIGHT AND SATURDAY...FOLLOWED BY A TURN TOWARD THE NORTH-NORTHWEST LATE SATURDAY OR EARLY SUNDAY. ON THE FORECAST TRACK...THE CENTER OF THE HURRICANE WILL BE APPROACHING BERMUDA BY LATE SUNDAY. HOWEVER... ADVERSE WEATHER CONDITIONS WILL BEGIN TO AFFECT BERMUDA AS EARLY AS LATE SATURDAY NIGHT. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 105 MPH...165 KM/HR...WITH HIGHER GUSTS. IGOR IS A CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SLIGHT STRENGTHENING IS POSSIBLE DURING THE NEXT DAY OR SO...FOLLOWED BY GRADUAL WEAKENING. IGOR IS A PARTICULARLY LARGE HURRICANE. HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM...FROM THE CENTER...AND TROPICAL- STORM-FORCE WINDS EXTEND OUTWARD UP TO 345 MILES...555 KM. DURING THE PAST HOUR...TROPICAL-STORM-FORCE WINDS NEAR 40 MPH WERE REPORTED AT NOAA BUOY 41049 LOCATED 245 MI...395 KM...NORTHWEST OF THE CENTER OF IGOR...AND ALSO AT NOAA BUOY 41044 LOCATED THE SAME DISTANCE TO THE SOUTHEAST OF THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 947 MB...27.96 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE EXPECTED IN BERMUDA BY LATE SATURDAY...WITH HURRICANE CONDITIONS EXPECTED ON SUNDAY. RAINFALL...IGOR IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 5 TO 8 INCHES OVER BERMUDA. STORM SURGE...A DANGEROUS STORM SURGE IS EXPECTED TO PRODUCE SIGNIFICANT COASTAL FLOODING ON BERMUDA. THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES...ESPECIALLY ALONG THE SOUTHERN COAST. SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE LEEWARD ISLANDS... PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE SWELLS WILL ALSO CAUSE DANGEROUS SURF CONDITIONS IN BERMUDA DURING THE NEXT SEVERAL DAYS...WHICH WILL WORSEN AS IGOR APPROACHES. SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE UNITED STATES THROUGH THE WEEKEND. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR ADDITIONAL INFORMATION. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 PM AST. $$ FORECASTER STEWART |
