000
FZNT02 KNHC 130850
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC FRI OCT 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI OCT 13.
24 HOUR FORECAST VALID 0600 UTC SAT OCT 14.
48 HOUR FORECAST VALID 0600 UTC SUN OCT 15.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE OPHELIA NEAR 31.1N 33.9W 970 MB AT 0900 UTC OCT 13 
MOVING ENE OR 070 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 90 KT 
GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM W 
SEMICIRCLE...70 NM NE AND 80 NM SE QUADRANTS. SEAS 12 FT OR 
GREATER WITHIN 180 NM NW AND SE QUADRANTS...240 NM NE AND 120 NM 
SW QUADRANTS WITH SEAS TO 29 FT. ELSEWHERE WITHIN 270 NM OF 
CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. SCATTERED TSTMS 
WITHIN 180 NM E AND WITHIN 120 NM W SEMICIRCLES OF CENTER. 
.24 HOUR FORECAST HURRICANE OPHELIA NEAR 33.1N 29.7W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM S SEMICIRCLE...90 NM NE AND 80 NM NW QUADRANTS. 
SEAS 12 FT OR GREATER WITHIN 300 NM E AND 390 NM W SEMICIRCLES 
OF CENTER WITH SEAS TO 35 FT. ATLC S OF 31N AND W OF 35W WINDS 
20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST HURRICANE OPHELIA NEAR 37.9N 20.8W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM NE...150 NM SE...200 NM SW AND 240 NM NW QUADRANTS.
SEAS 12 FT OR GREATER WITHIN 360 NM E AND 480 NM W SEMICIRCLES 
WITH SEAS TO 40 FT. ATLC S OF 31N AND W OF 35W WINDS 20 KT OR 
LESS.
.72 HOUR FORECAST POST TROPICAL EXTRATROPICAL OPHELIA NEAR 47.9N 
13.7W. 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 57.5N
6.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST...DISSIPATED. 

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 AND CARIBBEAN TROPICAL WAVE FROM 21N53W TO 10N58W. WITHIN 
150 NM OF 14N50W WINDS 20 KT OR LESS. SEAS TO 8 FT. SCATTERED 
MODERATE TO STRONG CONVECTION WITHIN 150 NM OF WAVE.  
.12 HOUR FORECAST TROPICAL WAVE FROM 21N56W TO 10N60W. N OF 15N 
WITHIN 300 NM E OF WAVE SE WINDS 20 TO 25 KT. SEAS TO 9 FT. 
SCATTERED MODERATE TO STRONG CONVECTION WITHIN 150 NM OF WAVE.  
.24 HOUR FORECAST TROPICAL WAVE FROM 21N59W TO 11N62W. N OF 15N 
WITHIN 300 NM E OF WAVE SE WINDS 20 TO 25 KT. SEAS TO 10 FT. 
SCATTERED MODERATE TO STRONG CONVECTION WITHIN 150 NM OF WAVE.  
.48 HOUR FORECAST TROPICAL WAVE FROM 21N64W TO 11N66W. WINDS 20 
KT OR LESS. SEAS LESS THAN 8 FT. 

.ATLC 30 HOUR FORECAST COLD FRONT FROM 30N35W TO 31N53W. N OF 
FRONT WINDS 20 KT OR LESS. SEAS TO 9 FT IN N SWELL.
.48 HOUR FORECAST STATIONARY FRONT FROM 28N35W TO 28N54W TO 
31N58W. N OF FRONT WINDS 20 KT OR LESS. SEAS TO 9 FT IN N SWELL.

.CARIBBEAN 24 HOUR FORECAST FROM 11N TO 13N BETWEEN 72W AND 76W 
NE TO E WINDS 20 TO 25 KT. SEAS BUILDING TO 8 FT. 
.36 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 NELSON. NATIONAL HURRICANE CENTER.