000
FZNT02 KNHC 091523
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON OCT 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 1200 UTC MON OCT 09.
24 HOUR FORECAST VALID 1200 UTC TUE OCT 10.
48 HOUR FORECAST VALID 1200 UTC WED OCT 11.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM OPHELIA NEAR 31.4N 39.9W 1008 MB AT 1500 UTC OCT 
09 MOVING NNE OR 030 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NE QUADRANT 
AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM NE 
QUADRANT AND 40 NM NW QUADRANT WITH SEAS TO 13 FT. OVER FORECAST 
WATERS WITHIN 90 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS TO 8 FT. 
FROM 30N TO 31N BETWEEN 50W AND 53W NE WINDS 20 TO 25 KT. SEAS 8 
TO 9 FT. ELSEWHERE FROM 28N TO 31N BETWEEN 49W AND 53W WINDS 20 
KT OR LESS. SEAS TO 9 FT IN NE SWELL.
.24 HOUR FORECAST TROPICAL STORM OPHELIA NEAR 31.6N 38.7W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM NE QUADRANT...50 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
THE AREA OF TROPICAL STORM FORCE WINDS WITH SEAS TO 16 FT. OVER 
FORECAST WATERS WITHIN 120 NM S SEMICIRCLE OF CENTER WINDS 20 TO 
33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM OPHELIA NEAR 30.7N 37.7W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. 
OVER FORECAST WATERS WITHIN 90 NM S AND 30 NM N SEMICIRCLES 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL STORM OPHELIA NEAR 29.8N 36.7W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE OPHELIA NEAR 30.5N 34.5W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST HURRICANE OPHELIA NEAR 32.0N 31.0W. 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 ALONG 50W FROM 13N TO 17N. FROM 14N TO 17.5N E OF 
TROUGH TO 45W SE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.12 HOUR FORECAST TROUGH ALONG 52W FROM 14N TO 20N. FROM 15N TO 
20N E OF TROUGH TO 47W SE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST TROUGH FROM 23N54W TO 15N55W. FROM 18N TO 22N 
E OF TROUGH TO 50W SE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.36 HOUR FORECAST TROUGH FROM 24N54W TO 20N55W. FROM 20N TO 23N 
E OF TROUGH TO 52W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE SWELL.
.48 HOUR FORECAST TROUGH DISSIPATED. CONDITIONS MERGED.

.ATLC FROM 23N TO 26N BETWEEN 72W AND 76W E WINDS 20 KT. SEAS 
TO 8 FT E OF THE BAHAMAS. 
.24 HOUR FORECAST FROM 22N TO 30N BETWEEN 58W AND 63W...AND FROM 
23N TO 29N BETWEEN 63W AND 70W E WINDS 20 TO 30 KT. SEAS 8 TO 12 
FT. 
.48 HOUR FORECAST FROM 25N TO 30N BETWEEN 60W AND 70W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 23N TO 30N 
BETWEEN 70W AND 75W AND E OF THE BAHAMAS WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN E SWELL.

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

CONVECTION VALID AT 1500 UTC MON OCT 09...

.TROPICAL STORM OPHELIA...NUMEROUS MODERATE ISOLATED STRONG 
WITHIN 150 NM NE SEMICIRCLE. SCATTERED MODERATE WITHIN 60 NM SW 
SEMICIRCLE.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.