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Hurricane BILL


ZCZC MIATCPAT3 ALL
TTAA00 KNHC DDHHMM
BULLETIN
HURRICANE BILL ADVISORY NUMBER  23
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL032009
1100 PM AST THU AUG 20 2009
 
...POWERFUL HURRICANE BILL REMAINS ON TRACK...

A TROPICAL STORM WARNING AND A HURRICANE WATCH ARE IN EFFECT FOR
BERMUDA.  A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM
CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 24
HOURS.  A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS.
 
INTERESTS ALONG THE COAST OF NEW ENGLAND AND IN THE CANADIAN
MARITIMES SHOULD MONITOR THE PROGRESS OF BILL.
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE OF THE UNITED
STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.  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.  
 
AT 1100 PM AST...0300 UTC...THE CENTER OF HURRICANE BILL WAS LOCATED
NEAR LATITUDE 24.9 NORTH...LONGITUDE 64.3 WEST OR ABOUT 510 MILES...
825 KM...SOUTH OF BERMUDA AND ABOUT 975 MILES...1570 KM...SOUTHEAST
OF CAPE HATTERAS NORTH CAROLINA.
 
BILL IS MOVING TOWARD THE NORTHWEST NEAR 18 MPH...30 KM/HR.  THIS
MOTION SHOULD CONTINUE THROUGH TONIGHT WITH A GRADUAL TURN TO THE
NORTH-NORTHWEST ON FRIDAY...FOLLOWED BY A TURN TOWARD THE NORTH ON
SATURDAY.  ON THE FORECAST TRACK...THE CORE OF THE HURRICANE IS
EXPECTED TO PASS BETWEEN BERMUDA AND THE EAST COAST OF THE UNITED
STATES ON SATURDAY.
 
MAXIMUM SUSTAINED WINDS ARE NEAR 125 MPH...205 KM/HR...WITH HIGHER
GUSTS.  BILL IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON
SCALE.  SOME FLUCTUATIONS IN INTENSITY ARE LIKELY DURING THE NEXT 12
TO 24 HOURS...AND BILL COULD REGAIN CATEGORY FOUR STRENGTH ON
FRIDAY.  GRADUAL WEAKENING IS EXPECTED TO BEGIN ON SATURDAY. 
 
BILL IS A LARGE TROPICAL CYCLONE.  HURRICANE FORCE WINDS EXTEND
OUTWARD UP TO 115 MILES...185 KM...FROM THE CENTER...AND TROPICAL
STORM FORCE WINDS EXTEND OUTWARD UP TO 260 MILES...415 KM.
 
THE LATEST MINIMUM CENTRAL PRESSURE ESTIMATE BY A NOAA HURRICANE
HUNTER PLANE WAS 943 MB...27.85 INCHES.
 
BILL IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 2 TO 4
INCHES OVER BERMUDA...WITH POSSIBLY SOME AMOUNTS OF 6 INCHES. 

SIGNIFICANT COASTAL FLOODING IS EXPECTED ALONG PORTIONS OF THE
BERMUDA COASTLINE OVER THE NEXT DAY OR TWO DUE TO LARGE AND
DANGEROUS BREAKING WAVES GENERATED BY BILL.

LARGE SWELLS GENERATED BY THIS HURRICANE ARE AFFECTING PUERTO
RICO...HISPANIOLA...THE BAHAMAS...AND BERMUDA...AND SHOULD BEGIN
AFFECTING MOST OF THE U.S. EAST COAST AND THE ATLANTIC MARITIMES OF
CANADA DURING THE NEXT DAY OR TWO.  THESE SWELLS WILL LIKELY CAUSE
EXTREMELY DANGEROUS SURF AND LIFE-THREATENING RIP CURRENTS. PLEASE
CONSULT STATEMENTS ISSUED BY YOUR LOCAL WEATHER OFFICE FOR MORE
DETAILS.
 
...SUMMARY OF 1100 PM AST INFORMATION...
LOCATION...24.9N 64.3W
MAXIMUM SUSTAINED WINDS...125 MPH
PRESENT MOVEMENT...NORTHWEST OR 310 DEGREES AT 18 MPH
MINIMUM CENTRAL PRESSURE...943 MB
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 200 AM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500
AM AST.
 
$$
FORECASTER BROWN/PASCH
 
NNNN


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Page last modified: Thursday, 31-Dec-2009 12:09:04 UTC