000
FZNT02 KNHC 120957
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU OCT 12 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

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

SYNOPSIS VALID 0600 UTC THU OCT 12.
24 HOUR FORECAST VALID 0600 UTC FRI OCT 13.
48 HOUR FORECAST VALID 0600 UTC SAT OCT 14.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE OPHELIA NEAR 30.3N 35.6W 986 MB AT 0900 UTC OCT 12 
MOVING NE OR 040 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 75 KT 
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM OF CENTER 
EXCEPT 60 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM OF 
CENTER EXCEPT 120 NM SE QUADRANT WITH SEAS TO 25 FT. ELSEWHERE 
OVER FORECAST WATERS N OF 27N E OF 40W WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT. FROM 25N TO 27N E OF 40W WINDS 20 KT OR LESS. SEAS 8 
TO 9 FT IN NE SWELL. 
.24 HOUR FORECAST HURRICANE OPHELIA NEAR 31.3N 34.0W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM N SEMICIRCLE...80 NM SE QUADRANT AND 70 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM OF CENTER WITH 
SEAS TO 27 FT. ELSEWHERE OVER FORECAST WATERS N OF 27N E OF 39W 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST HURRICANE OPHELIA NE OF AREA NEAR 33.7N 28.6W. 
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. OVER FORECAST WATERS 
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 
.72 HOUR FORECAST HURRICANE OPHELIA NEAR 38.5N 20.5W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL OPHELIA NEAR 49.0N 
13.5W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL OPHELIA NEAR 
59.0N 7.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.ATLC TROUGHS FROM 27N75W TO 22N77W AND FROM 28N68W TO 20N71W. 
FROM 26N TO 29N BETWEEN 73W AND 79W E WINDS 20 TO 25 KT. SEAS TO 
8 FT OUTSIDE BAHAMAS.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC TROPICAL WAVE FROM 17N48W TO 06N51W. FROM 12N TO 15N 
BETWEEN 46W AND 49W WINDS 20 KT OR LESS. SEAS TO 8 FT IN E 
SWELL. 
.18 HOUR FORECAST TROPICAL WAVE FROM 18N51W TO 10N56W. WINDS 20 
KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN 42 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W 
NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST LITTLE CHANGE. 

.GULF OF MEXICO STATIONARY FRONT FROM 30N88W TO 25N96W TO 
19N95W. S OF 24N W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS TO 9 
FT. 
.18 HOUR FORECAST FRONT DISSIPATING. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

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

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.