000
FZNT02 KNHC 110242
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED OCT 11.
24 HOUR FORECAST VALID 0000 UTC THU OCT 12.
48 HOUR FORECAST VALID 0000 UTC FRI OCT 13.

.WARNINGS.

...ATLC HURRICANE WARNING... 
.TROPICAL STORM OPHELIA NEAR 30.8N 37.6W 1002 MB AT 0300 UTC OCT
11 MOVING ESE OR 120 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NW AND SE 
QUADRANTS...30 NM NE QUADRANT AND 50 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 90 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE 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 30.1N 36.5W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM OF CENTER. SEAS 12 FT OR GREATER 
WITHIN 90 NM WITH SEAS TO 17 FT. ELSEWHERE WITHIN 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 30.7N 35.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM OF CENTER EXCEPT 60 NM NW QUADRANT. 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 32.5N 30.8W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST HURRICANE OPHELIA NEAR 35.7N 23.2W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. 
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL OPHELIA NEAR 
41.0N 14.0W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 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 26N62W TO 20N67W. WITHIN AREA BOUNDED BY 
22N58W TO 23N74W TO 30N71W TO 30N58W TO 22N58W E WINDS 20 TO 25 
KT. SEAS 8 FT.
.24 HOUR FORECAST TROUGH FROM 27N73W TO 21N76W. WITHIN AREA 
BOUNDED BY 25N62W TO 25N78W TO 30N77W TO 29N62W TO 25N62W WINDS 
20 KT OR LESS. SEAS 8 FT IN E SWELL.
.42 HOUR FORECAST TROUGH FROM 26N77W TO 22N79W. WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

.ATLC TROPICAL WAVE FROM 14N38W TO 07N41W. WITHIN AREA BOUNDED 
BY 08N35W TO 08N39W TO 09N40W TO 13N39W TO 13N35W TO 08N35W SE 
WINDS 20 TO 25 KT. SEAS 8 FT. 
.24 HOUR FORECAST TROPICAL WAVE FROM 15N43W TO 07N46W. WITHIN 
AREA BOUNDED BY 10N40W TO 10N46W TO 14N47W TO 14N40W TO 10N40W E 
TO SE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST WITHIN TROPICAL WAVE FROM 16N50W TO 08N52W.  
WINDS 20 KT OR LESS. SEAS 8 FT.

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

CONVECTION VALID AT 0315 UTC WED OCT 11...

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.