Hurricane Bill

Public Advisory 13

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317
WTNT33 KNHC 181449
TCPAT3
BULLETIN
HURRICANE BILL ADVISORY NUMBER 13
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL032009
1100 AM AST TUE AUG 18 2009

...BILL A LITTLE STRONGER...HURRICANE HUNTER AIRCRAFT EXPECTED TO
INVESTIGATE THE HURRICANE THIS AFTERNOON...

INTERESTS IN THE LEEWARD ISLANDS 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 AM AST...1500 UTC...THE EYE OF HURRICANE BILL WAS LOCATED
NEAR LATITUDE 15.9 NORTH...LONGITUDE 51.2 WEST OR ABOUT 705 MILES...
1140 KM...EAST OF THE LEEWARD ISLANDS.

BILL IS MOVING TOWARD THE WEST-NORTHWEST NEAR 16 MPH...26 KM/HR. A
WEST-NORTHWEST MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 24 HOURS
FOLLOWED BY A TURN TOWARD THE NORTHWEST ON WEDNESDAY.

MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 105 MPH...165
KM/HR...WITH HIGHER GUSTS. BILL IS A CATEGORY TWO HURRICANE ON THE
SAFFIR-SIMPSON SCALE. STRENGTHENING IS FORECAST DURING THE NEXT 48
HOURS...AND BILL COULD BECOME A MAJOR HURRICANE WITHIN THE NEXT DAY
OR SO. AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT IS EXPECTED
TO INVESTIGATE BILL THIS AFTERNOON.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 40 MILES...65 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 963 MB...28.44 INCHES.

...SUMMARY OF 1100 AM AST INFORMATION...
LOCATION...15.9N 51.2W
MAXIMUM SUSTAINED WINDS...105 MPH
PRESENT MOVEMENT...WEST-NORTHWEST OR 285 DEGREES AT 16 MPH
MINIMUM CENTRAL PRESSURE...963 MB

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
500 PM AST.

$$
FORECASTER BROWN/CANGIALOSI