000
FZNT02 KNHC 200255
HSFAT2

HIGH SEAS FORECAST
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
0430 UTC THU AUG 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC THU AUG 20.
24 HOUR FORECAST VALID 0000 UTC FRI AUG 21.
48 HOUR FORECAST VALID 0000 UTC SAT AUG 22.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE BILL NEAR 20.7N 58.9W 945 MB AT 0300 UTC AUG 20
MOVING NW OR 305 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 115 KT
GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 175 NM NW AND SE 
QUADRANTS...200 NM NE QUADRANT AND 100 NM SW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 400 NM NE QUADRANT...330 NM SE 
QUADRANT...240 NM SW QUADRANT...AND 300 NM NW QUADRANT WITH SEAS 
TO 52 FT.
.24 HOUR FORECAST HURRICANE BILL NEAR 24.1N 63.4W. MAXIMUM
SUSTAINED WINDS 125 KT GUSTS 155 KT. TROPICAL STORM FORCE WINDS
WITHIN 225 NM NE QUADRANT...200 NM SE QUADRANT...120 NM SW 
QUADRANT...AND 180 NM NW QUADRANT. SEAS 12 FT OR GREATER 400 NM 
NE QUADRANT...330 NM SE QUADRANT...270 NM SW QUADRANT...AND 240 
NM NW QUADRANT WITH SEAS TO 54 FT.
.48 HOUR FORECAST HURRICANE BILL NEAR 29.4N 67.5W. MAXIMUM
SUSTAINED WINDS 120 KT GUSTS 145 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. 
.72 HOUR FORECAST HURRICANE BILL NEAR 36.0N 69.0W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE BILL INLAND NEAR 45.0N 62.5W.
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST EXTRATROPICAL LOW BILL NEAR 53.0N 44.5W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

.SYNOPSIS AND FORECAST.

.ATLC...EXCEPT AS NOTED IN WARNINGS WITHIN 480 NM N SEMICIRCLE 
AND SE QUADRANT AND 270 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT. 
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNING WITHIN 480 NM 
NE...480 NM SE...300 NM SW...AND 390 NM NW QUADRANTS WINDS 20 TO 
33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNING WITHIN 450 NM 
NE...480 NM SE...330 NM SW...AND 330 NM NW QUADRANTS WINDS 20 TO 
33 KT. SEAS 8 TO 12 FT. ELSEWHERE E OF BAHAMAS BETWEEN 67W AND 
77W WINDS LESS THAN 20 KT. SEAS 8 TO 12 FT.

.ATLC FROM 17N TO 24N E OF 38W NE TO E WINDS 20 KT. SEAS TO 9 
FT. ELSEWHERE FROM 13N TO 24N E OF 61W E TO SE WINDS TO 20 KT. 
SEAS TO 8 FT.
.24 HOUR FORECAST FROM 13N TO 24N E OF 50W NE TO E WINDS 20 TO 
25 KT. SEAS TO 9 FT. ELSEWHERE FROM 12N TO 25N E WINDS TO 20 KT. 
SEAS TO 8 FT.
.48 HOUR FORECAST FROM 13N TO 20N BETWEEN 40W AND 60W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE FROM 12N TO 25N E OF 
61W E WINDS TO 20 KT. SEAS TO 8 FT.

.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 80W NE TO E WINDS 20 
KT...EXCEPT 25 TO 30 KT NEAR COAST OF COLOMBIA. SEAS 8 TO 10 FT.
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 79W NE TO E 
WINDS TO 20 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 75W AND 79W AND S OF 
15N BETWEEN 64W AND 75W NE TO E WINDS TO 20 KT...EXCEPT TO 25 KT 
NEAR COAST OF COLOMBIA. SEAS TO 8 FT.

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

$$
.FORECASTER SCHAUER CLARK. TROPICAL PREDICTION CENTER.