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| #377798 (Received by flhurricane at: 1:44 PM 21.Sep.2010) TCPAT1 BULLETIN HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 54A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010 200 PM AST TUE SEP 21 2010 ...IGOR PRODUCING GUSTS TO HURRICANE FORCE OVER PORTIONS OF NEWFOUNDLAND... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...48.5N 52.0W ABOUT 75 MI...120 KM NNE OF ST. JOHNS NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/HR PRESENT MOVEMENT...NE OR 35 DEGREES AT 46 MPH...74 KM/HR MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WATCH IS IN EFFECT FOR... * THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD TO FOGO ISLAND A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD TO TRITON * THE ISLANDS OF ST-PIERRE AND MIQUELON A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA WITHIN...IN THIS CASE WITHIN THE NEXT 6 TO 12 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED STATES...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 PM AST...1800 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED NEAR LATITUDE 48.5 NORTH...LONGITUDE 52.0 WEST. IGOR IS MOVING RAPIDLY TOWARD THE NORTHEAST NEAR 46 MPH...74 KM/HR. A TURN TOWARD THE NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS EXPECTED TONIGHT AND EARLY WEDNESDAY. THE CYCLONE IS THEN EXPECTED TO TURN TOWARD THE NORTH-NORTHWEST AND NORTHWEST WITH AN ADDITIONAL DECREASE IN FORWARD SPEED WEDNESDAY NIGHT AND EARLY THURSDAY. ON THIS TRACK...THE CENTER OF IGOR WILL CONTINUE TO MOVE AWAY FROM THE ISLAND OF NEWFOUNDLAND. SURFACE OBSERVATIONS FROM CANADA INDICATE THAT MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER GUSTS. IGOR IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. IGOR IS EXPECTED TO BECOME AN INTENSE EXTRATROPICAL CYCLONE LATER TODAY. BONAVISTA NEWFOUNDLAND RECENTLY REPORTED A SUSTAINED WIND OF 73 MPH...117 KM/HR...AND A GUST TO 90 MPH...144 KM/HR. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 460 MILES...740 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 950 MB...28.05 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...WINDS OF TROPICAL STORM FORCE AND VERY NEAR HURRICANE FORCE...ESPECIALLY IN GUSTS...ARE BEING REPORTED IN NEWFOUNDLAND. THESE WINDS WILL LIKELY DIMINISH LATER TODAY AS IGOR MOVES FARTHER TO THE NORTH. RAINFALL...THE HEAVY RAINFALL THREAT ASSOCIATED WITH IGOR WILL BE COMING TO AN END ACROSS NEWFOUNDLAND THIS AFTERNOON AS THE STORM MOVES RAPIDLY NORTHEASTWARD. ADDITIONAL RAINFALL ACCUMULATIONS OF 1 TO 3 INCHES ARE POSSIBLE OVER EASTERN NEWFOUNDLAND...WITH STORM TOTAL ACCUMULATIONS OF 4 TO 8 INCHES POSSIBLE. SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE UNITED STATES THROUGH TODAY AND THE SOUTH-FACING COASTLINES OF NOVA SCOTIA AND NEWFOUNDLAND FOR THE NEXT FEW DAYS. SWELLS WILL BE SLOW TO SUBSIDE IN PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA... AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. 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...500 PM AST. $$ FORECASTER BERG |
