000
WTNT33 KNHC 202344
TCPAT3
BULLETIN
HURRICANE BILL INTERMEDIATE ADVISORY NUMBER  22A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL032009
800 PM AST THU AUG 20 2009
 
...LARGE AND DANGEROUS HURRICANE BILL CONTINUES NORTHWESTWARD...
 
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.
  
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 800 PM AST...0000 UTC...THE EYE OF HURRICANE BILL WAS LOCATED
NEAR LATITUDE 24.4 NORTH...LONGITUDE 63.9 WEST OR ABOUT 550 MILES...
885 KM...SOUTH OF BERMUDA AND ABOUT 1020 MILES...1640 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 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 TONIGHT OR FRIDAY.
 
BILL IS A LARGE HURRICANE AND ITS 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 ESTIMATED MINIMUM CENTRAL PRESSURE IS 948 MB...27.99 INCHES.
 
LARGE SWELLS GENERATED BY THIS HURRICANE ARE AFFECTING THE NORTHERN
LEEWARD ISLANDS...PUERTO RICO AND HISPANIOLA...AND SHOULD BEGIN
AFFECTING THE BAHAMAS...BERMUDA...MOST OF THE U.S. EAST COAST...AND
THE ATLANTIC MARITIMES OF CANADA DURING THE NEXT FEW DAYS.  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 800 PM AST INFORMATION...
LOCATION...24.4N 63.9W
MAXIMUM SUSTAINED WINDS...125 MPH
PRESENT MOVEMENT...NORTHWEST OR 305 DEGREES AT 18 MPH
MINIMUM CENTRAL PRESSURE...948 MB
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
1100 PM AST.
 
$$
FORECASTER BROWN/PASCH