000
FZNT02 KNHC 181551
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC FRI OCT 18 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI OCT 18.
24 HOUR FORECAST VALID 1200 UTC SAT OCT 19.
48 HOUR FORECAST VALID 1200 UTC SUN OCT 20.

.WARNINGS.

...GULF OF MEXICO TROPICAL STORM WARNING...
.POTENTIAL TROPICAL CYCLONE SIXTEEN NEAR 25.9N 90.0W 1001 MB AT 
1500 UTC OCT 18 MOVING NE OR 055 DEG AT 19 KT. MAXIMUM SUSTAINED 
WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM 
W SEMICIRCLE...120 NM NE QUADRANT AND 150 NM SE QUADRANT. SEAS 
12 FT OR GREATER WITHIN 60 NM NE AND SW QUADRANTS...0 NM NW 
QUADRANT AND 120 NM SE QUADRANT WITH SEAS TO 16 FT. ELSEWHERE 
WITHIN 330 NM NE...270 NM SE...210 NM SW AND 180 NM NW QUADRANTS 
WINDS 20 TO 33 KT. SEAS TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM SIXTEEN NEAR 29.9N 85.5W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE 
WINDS WITHIN 40 NM W SEMICIRCLE...100 NM NE QUADRANT AND 150 NM 
SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM NW AND 180 NM SE 
SEMICIRCLES WITH SEAS TO 17 FT. ELSEWHERE N OF LINE FROM 24N85W 
TO 23N86W TO 28N90W WINDS 20 TO 33 KT. SEAS 8 TO 15 FT.



.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL SIXTEEN N OF AREA 
NEAR 33.5N 80.5W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. 
TROPICAL STORM FORCE WINDS WITHIN 0 NM W SEMICIRCLE...100 NM NE 
QUADRANT AND 150 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 
210 NM SE SEMICIRCLE WITH SEAS TO 14 FT. OVER FORECAST WATERS NW 
OF LINE FROM 31N74W TO 27N80W S TO SW WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT.

.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL SIXTEEN NEAR 37.0N 
72.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL SIXTEEN NEAR 37.5N 
69.5W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 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 06 HOUR FORECAST E OF LINE FROM 23N35W TO 28N38W TO 29N35W 
WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NE SWELL.
.ATLC 24 HOUR FORECAST E OF LINE FROM 22N38W TO 27N41W TO 29N35W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.
.48 HOUR FORECAST FROM 25N TO 28N E OF 40W WINDS 20 KT OR LESS. 
SEAS TO 8 FT IN N TO NE SWELL.

.ATLC 18 HOUR FORECAST COLD FRONT FROM 31N61W TO 24N69W. N OF 
30N WITHIN 120 NM E OF FRONT WINDS 20 KT OR LESS. SEAS 8 FT IN 
NW SWELL. N OF 30N BETWEEN 48W AND 55W WINDS 20 KT OR LESS. SEAS 
TO 8 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N58W TO 25N69W. E OF FRONT 
AND N OF LINE FROM 30N48W TO 29N61W WINDS 29 KT OR LESS. SEAS 8 
TO 9 FT IN NW SWELL. N OF 30N AND W OF FRONT TO 61W WINDS 20 KT 
OR LESS. SEAS 8 FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N50W TO 25N57W...THEN 
WEAKENING STATIONARY FRONT TO 23N62W. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.ATLC 24 HOUR FORECAST N OF 28N W OF 78W SE WINDS 20 TO 30 KT. 
SEAS BUILDING TO 8 FT.
.48 HOUR FORECAST W OF LINE FROM 31N72W TO 28N76W S TO SW WINDS 
20 TO 30 KT. SEAS 8 TO 13 FT.

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

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.