000
FZNT02 KNHC 111517
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED OCT 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC WED OCT 11.
24 HOUR FORECAST VALID 1200 UTC THU OCT 12.
48 HOUR FORECAST VALID 1200 UTC FRI OCT 13.

.WARNINGS.

...ATLC HURRICANE WARNING...
.TROPICAL STORM OPHELIA NEAR 30.0N 36.5W 992 MB AT 1500 UTC OCT 
11 MOVING E OR 090 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NW AND SE 
QUADRANTS...AND 60 NM SW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 
60 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE WITH SEAS TO 23 FT. 
ELSEWHERE OVER FORECAST WATERS WITHIN 180 NM IN NE SEMICIRCLE 
AND 240 NM SW SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE OPHELIA NEAR 30.1N 35.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM OF CENTER. SEAS 12 FT OR GREATER WITHIN 120 NM IN 
NE SEMICIRCLE AND 90 NM IN SW SEMICIRCLE WITH SEAS TO 27 FT. 
ELSEWHERE OVER FORECAST WATERS WITHIN 180 NM OF CENTER WINDS 20 
TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 240 NM OF 
CENTER WINDS 20 KT OR LESS. SEAS 8 TO 10 FT.
.48 HOUR FORECAST HURRICANE OPHELIA NEAR 31.5N 33.3W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM OF CENTER EXCEPT 70 NM NW QUADRANT. SEAS 12 FT OR 
GREATER WITHIN 150 NM OF THE CENTER WITH SEAS TO 27 FT. 
ELSEWHERE OVER FORECAST WATERS WITHIN 180 NM OF THE CENTER WINDS 
20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 300 NM 
OF THE CENTER WINDS 20 KT OR LESS. SEAS 8 TO 10 FT.
.72 HOUR FORECAST HURRICANE OPHELIA NEAR 34.0N 26.8W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL OPHELIA NEAR 40.0N 
17.5W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL OPHELIA NEAR 
51.5N 12.5W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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 26N63W TO 20N69W AND FROM 27N72W TO 20N74W. 
WITHIN AREA BOUNDED BY 25N72W TO 30N65W TO 30N70W TO 27N75W TO 
25N72W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE 
WITHIN AREA BOUNDED BY 23N70W TO 26N63W TO 30N68W TO 27N76W TO 
23N70W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.24 HOUR FORECAST TROUGH FROM 27N76W TO 20N78W. WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

.ATLC TROPICAL WAVE FROM 15N42W TO 06N45W. FROM 11N TO 14N 
BETWEEN 40W AND 45W E TO SE WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST TROPICAL WAVE FROM 15N48W TO 05N53W. FROM 12N 
TO 15N BETWEEN 48W AND 50W WINDS 20 KT OR LESS. SEAS TO 8 FT. 
.30 HOUR FORECAST TROPICAL WAVE FROM 16N51W TO 06N55W. WINDS 20 
KT OR LESS. SEAS LESS THAN 8 FT. 

.GULF OF MEXICO STATIONARY FRONT FROM 30N91W TO 20N97W. S OF 25N 
W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 29N89W TO 
27N97W TO 19N95W. S OF 22N W OF FRONT NW WINDS 20 TO 25 KT. SEAS 
TO 8 FT. 
.36 HOUR FORECAST FRONT DISSIPATED. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. 

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

$$
.FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.