000
FZNT02 KNHC 102138
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE OCT 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE OCT 10.
24 HOUR FORECAST VALID 1800 UTC WED OCT 11.
48 HOUR FORECAST VALID 1800 UTC THU OCT 12.

.WARNINGS.

...ATLC HURRICANE WARNING...
.TROPICAL STORM OPHELIA NEAR 31.1N 38.0W 1001 MB AT 2100 UTC OCT
10 MOVING SE OR 135 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM OF CENTER.
SEAS 12 FT OR GREATER WITHIN 90 NM N SEMICIRCLE...70 NM SE
QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO 16 FT. ELSEWHERE OVER
FORECAST WATERS WITHIN 120 NM S SEMICIRCLE WINDS 20 TO 33 KT.
SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM OPHELIA NEAR 30.2N 36.8W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.
ELSEWHERE OVER FORECAST WATERS FROM 26N TO 31N BETWEEN 35W AND 
42W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST HURRICANE OPHELIA NEAR 30.5N 35.6W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM N SEMICIRCLE AND 70 NM S SEMICIRCLE. SEAS 12 FT OR 
GREATER WITHIN 120 NM OF CENTER WITH SEAS TO 22 FT. ELSEWHERE 
OVER FORECAST WATERS FROM 25N TO 31N BETWEEN 35W AND 42W WINDS 20
TO 33 KT. SEAS 8 TO 12 FT. 
.72 HOUR FORECAST HURRICANE OPHELIA NEAR 32.0N 32.2W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST HURRICANE OPHELIA NEAR 34.7N 25.8W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. 
.120 HOUR FORECAST POST- TROPICAL EXTRATROPICAL OPHELIA NEAR 
39.0N 17.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 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 TROUGH FROM 25N65W TO 20N68W. FROM 23N TO 29N BETWEEN 60W
AND 72W E WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST TROUGH FROM 27N72W TO 21N75W. FROM 25N TO 28N
BETWEEN 72W AND 75W WINDS 20 KT OR LESS. SEAS 8 FT IN E SWELL.
.30 HOUR FORECAST TROUGH FROM 26N76W TO 22N78W. WINDS 20 KT OR
LESS. SEAS LESS THAN 8 FT.

.ATLC TROUGH FROM 25N53W TO 18N55W. FROM 22N TO 24N BETWEEN 55W
AND 57W NE TO E WINDS 20 TO 25 KT. SEAS 8 FT. 
.24 HOUR FORECAST TROUGH FROM 24N66W TO 19N68W. WINDS 20 KT OR
LESS. SEAS LESS THAN 8 FT.

.ATLC TROPICAL WAVE FROM 14N37W TO 07N40W. FROM 09N TO 12N
BETWEEN 35W AND 38W SE WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST TROPICAL WAVE FROM 15N42W TO 07N45W. FROM 10N
TO 14N BETWEEN 40W AND 45W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 
10 FT.
.48 HOUR FORECAST TROPICAL WAVE FROM 15N50W TO 07N51W. FROM 13N
TO 15N BETWEEN 49W AND 52W WINDS 20 KT OR LESS. SEAS 8 FT IN E
SWELL.

.GULF OF MEXICO COLD FRONT FROM 30N93W TO 26.5N97W. S OF 28N W 
OF FRONT N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 29N90W TO 26N95W TO 19N95W. S 
OF 25N W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.48 HOUR FORECAST STATIONARY FRONT FROM 30N85W TO 27N95W TO
19N95W. S OF 21N W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS 8 FT.

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

CONVECTION VALID AT 2115 UTC TUE OCT 10...

.TROPICAL STORM OPHELIA...SCATTERED MODERATE WITHIN 90 NM OF
CENTER.

.SCATTERED MODERATE ISOLATED STRONG FROM 18N TO 24N BETWEEN 50W
AND 55W...AND FROM 17N TO 24N BETWEEN 60W AND 67W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.