000
FZNT02 KNHC 120421
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC THU OCT 12.
24 HOUR FORECAST VALID 0000 UTC FRI OCT 13.
48 HOUR FORECAST VALID 0000 UTC SAT OCT 14.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE OPHELIA NEAR 30.0N 35.7W 986 MB AT 0300 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 WITH SEAS TO 25 FT. ELSEWHERE WITHIN 180 NM NE AND 210 SW
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE OPHELIA NEAR 30.9N 34.6W. 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 180 NM NE
AND 120 NM SW SEMICIRCLES WITH SEAS TO 28 FT. ELSEWHERE WITHIN
270 NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE OPHELIA NEAR 32.8N 30.2W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NE QUADRANT...120 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 60 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 11 FT.
.72 HOUR FORECAST HURRICANE OPHELIA NEAR 37.0N 22.0W. 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 46.0N
14.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL OPHELIA NEAR 
56.5N 8.5W. 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 27N74W TO 21N75W AND FROM 25N65W TO 20N70W. 
WITHIN AREA BOUNDED BY 29N74W TO 29N72W TO 25N75W TO 27N77W TO 
29N77W E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC WITHIN TROPICAL WAVE FROM 16N45W TO 07N50W. WITHIN AREA 
BOUNDED BY 14N47W TO 14N45W TO 10N45W TO 10N47W TO 14N47W WINDS 
20 KT OR LESS. SEAS TO 9 FT IN E SWELL. 
.24 HOUR FORECAST TROPICAL WAVE FROM 18N51W TO 10N56W. WINDS 20 
KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO STATIONARY FRONT FROM 29.5N90W TO 25N96W TO 
18.5N94W. S OF 24N W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS TO 
8 FT. 
.24 HOUR FORECAST FRONT DISSIPATED. S OF 24N W OF 95W NW TO
N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.