000
FZNT02 KNHC 180923
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC TUE AUG 18 2009

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS
AMENDED FOR ATLC FORECAST

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE 
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE 
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

PAN PAN

ATLANTIC BETWEEN 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA
AND GULF OF MEXICO

SYNOPSIS VALID 0600 UTC TUE AUG 18.
24 HOUR FORECAST VALID 0600 UTC WED AUG 19.
48 HOUR FORECAST VALID 0600 UTC THU AUG 20.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE BILL NEAR 15.5N 49.7W 967 MB AT 0900 UTC AUG 18
MOVING WNW OR 285 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM N
SEMICIRCLE...90 NM SE QUADRANT AND 75 NM SW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 300 NM NE QUADRANT...225 NM SE
QUADRANT...120 NM SW QUADRANT...AND 250 NM NW QUADRANT WITH SEAS
TO 25 FT.
.24 HOUR FORECAST HURRICANE BILL NEAR 17.4N 54.2W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 160 NM NE QUADRANT...120 NM SE QUADRANT...75 NM SW 
QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
320 NM N SEMICIRCLE AND 180 NM S SEMICIRCLE WITH SEAS TO 38 FT.
.48 HOUR FORECAST HURRICANE BILL NEAR 20.5N 59.0W. MAXIMUM
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM NW AND SE QUADRANTS...180 NM NE QUADRANT AND 105 
NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 400 NM NE 
QUADRANT...300 NM NW QUADRANT AND 180 NM S SEMICIRCLE WITH SEAS 
TO 45 FT.
.72 HOUR FORECAST HURRICANE BILL NEAR 24.0N 63.5W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE BILL NEAR 29.5N 67.5W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT.
.120 HOUR FORECAST HURRICANE BILL NEAR 35.5N 68.0W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT.

.SYNOPSIS AND FORECAST.

.ATLC...EXCEPT AS NOTED IN WARNINGS WITHIN 480 NM N AND 300 NM S 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 
10N TO 23N BETWEEN 42W AND 61W WINDS 20 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNING WITHIN 480 N AND 
240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNING WITHIN 420 N AND 
240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.

FROM S OF 23N BETWEEN 65W AND 78W WINDS 20 TO 25 KT. SEAS TO 9 
FT.
.24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 75W NE TO E WINDS TO 
20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 11N TO 16N BETWEEN 72W AND 78W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST FROM 11N TO 15N BETWEEN 74W AND 82W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 

.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

$$
.FORECASTER DGS. TROPICAL PREDICTION CENTER