000
WTNT33 KNHC 200244
TCPAT3
BULLETIN
HURRICANE BILL ADVISORY NUMBER  19
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL032009
1100 PM AST WED AUG 19 2009

...BILL MAINTAINING CATEGORY FOUR STRENGTH...

INTERESTS IN BERMUDA 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.
 
AT 1100 PM AST...0300 UTC...THE EYE OF HURRICANE BILL WAS LOCATED
NEAR LATITUDE 20.7 NORTH...LONGITUDE 58.9 WEST OR ABOUT 315 MILES...
505 KM...NORTHEAST OF THE LEEWARD ISLANDS AND ABOUT 880 MILES...1415
KM...SOUTH-SOUTHEAST OF BERMUDA.
 
BILL IS MOVING TOWARD THE NORTHWEST NEAR 17 MPH...28 KM/HR...AND
THIS GENERAL MOTION IS EXPECTED FOR THE NEXT DAY OR SO WITH A TURN
TOWARD THE NORTH-NORTHWEST BY LATE FRIDAY.  

MAXIMUM SUSTAINED WINDS ARE NEAR 135 MPH...215 KM/HR...WITH HIGHER
GUSTS.  BILL IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON
SCALE.  SOME STRENGTHENING IS POSSIBLE DURING THE NEXT 24 HOURS.
 
BILL IS A LARGE TROPICAL CYCLONE.  HURRICANE FORCE WINDS EXTEND
OUTWARD UP TO 85 MILES...140 KM...FROM THE CENTER...AND TROPICAL
STORM FORCE WINDS EXTEND OUTWARD UP TO 230 MILES...370 KM.
 
THE MINIMUM CENTRAL PRESSURE ESTIMATED FROM NOAA AIRCRAFT
RECONNAISSANCE DATA IS 945 MB...27.91 INCHES.

LARGE SWELLS ASSOCIATED WITH BILL WILL BE IMPACTING THE ISLANDS OF
THE NORTHEAST CARIBBEAN SEA...THE BAHAMAS...AND BERMUDA DURING THE
NEXT DAY OR TWO.  LARGE SWELLS ASSOCIATED WITH BILL SHOULD ALSO
BEGIN TO AFFECT PORTIONS OF THE EAST COAST OF THE UNITED STATES
FRIDAY AND SATURDAY.

...SUMMARY OF 1100 PM AST INFORMATION...
LOCATION...20.7N 58.9W
MAXIMUM SUSTAINED WINDS...135 MPH
PRESENT MOVEMENT...NORTHWEST OR 305 DEGREES AT 17 MPH
MINIMUM CENTRAL PRESSURE...945 MB
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
500 AM AST.
 
$$
FORECASTER BROWN/PASCH