000
FZNT02 KNHC 181537
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT SEP 18 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

.WARNINGS.

...ATLC GALE WARNING...
.LOW PRESSURE NEAR 15.0N 51.0W 1008 MB MOVING WNW AT 15 KT. 
WITHIN 17N46W TO 15N48W TO 15N51W TO 17N51W TO 18N49W TO 17N46W E
TO SE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 
17N43W TO 15N46W TO 15N48W TO 17N51W TO 20N47W TO 17N43W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN E SWELL. 
.12 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE... 
NEAR 16.0N 54.0W 1008 MB. WITHIN 16N53W TO 16N54W TO 17N54W TO 
16N53W WINDS 25 TO 35 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 16N52W TO
16N53W TO 17N54W TO 18N54W TO 18N52W TO 16N52W E TO SE WINDS 20 
TO 25 KT. SEAS 9 TO 10 FT. REMAINDER OF AREA WITHIN 16N48W TO 
16N52W TO 20N51W TO 18N48W TO 16N48W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN E SWELL. 
.24 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE... 
NEAR 17.0N 56.5W 1007 MB. WITHIN 17N56W TO 17N57W TO 18N57W TO 
18N56W TO 17N56W WINDS 30 TO 40 KT. SEAS 10 TO 12 FT. ELSEWHERE 
WITHIN 17N53W TO 17N56W TO 20N57W TO 21N53W TO 19N51W TO 17N53W WINDS
20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA WITHIN 17N53W TO
17N56W TO 19N57W TO 20N56W TO 20N54W TO 17N53W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN E TO SE SWELL.
.48 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE... 
NEAR 19.0N 61.0W 1007 MB. WITHIN 19N61W TO 19N62W TO 20N62W TO 
20N61W TO 19N61W WINDS 30 TO 40 KT. SEAS 10 TO 13 FT. ELSEWHERE 
WITHIN 20N58W TO 20N60W TO 20N62W TO 23N61W TO 22N57W TO 20N58W 
WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA WITHIN 
21N56W TO 19N58W TO 20N62W TO 24N61W TO 24N57W TO 21N56W WINDS 
20 KT OR LESS. SEAS 8 TO 9 FT IN E TO SE SWELL. 

.SYNOPSIS AND FORECAST.

.CARIBBEAN WITHIN 11N74W TO 11N77W TO 12N77W TO 13N77W TO 13N75W TO
11N74W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE 
WITHIN 11N77W TO 11N75W TO 11N76W TO 11N78W TO 13N77W TO 11N77W 
WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL. 
.24 HOUR FORECAST WITHIN 12N75W TO 11N76W TO 11N77W TO 13N76W TO
12N75W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE TO E SWELL.
.27 HOUR FORECAST NONE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 
FT.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.