593 
FZNT02 KNHC 190313
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SUN SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SUN SEP 19.
24 HOUR FORECAST VALID 0000 UTC MON SEP 20.
48 HOUR FORECAST VALID 0000 UTC TUE SEP 21.

.WARNINGS.

...ATLANTIC TROPICAL STORM WARNING...
.TROPICAL DEPRESSION SIXTEEN NEAR 16.4N 53.1W 1008 MB AT 0300 UTC
SEP 19 MOVING WNW OR 300 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 
30 KT GUSTS 40 KT. WITHIN 17N51W TO 16N54W TO 18N54W TO 18N52W TO
17N51W E WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 
16N47W TO 15N53W TO 19N55W TO 20N51W TO 18N47W TO 16N47W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. 
.12 HOUR FORECAST TROPICAL STORM SIXTEEN NEAR 17.3N 54.8W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST TROPICAL STORM SIXTEEN NEAR 18.5N 57.3W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM NE QUADRANT...40 NM SE QUADRANT...0 NM SW 
QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 90 NM NE AND 30 NM SW SEMICIRCLES WITH SEAS TO 13 FT.
ELSEWHERE WITHIN 18N54W TO 17N58W TO 20N60W TO 22N58W TO
22N54W TO 18N54W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM SIXTEEN NEAR 20.3N 61.9W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 50 NM NW AND SE QUADRANTS...90 NM NE QUADRANT AND 0 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE AND 60 NM SW 
SEMICIRCLES WITH SEAS TO 14 FT. ELSEWHERE WITHIN 20N60W TO 20N64W
TO 23N64W TO 24N61W TO 23N60W TO 20N60W WINDS 2O TO 33 KT. SEAS 
10 TO 12 FT. REMAINDER OF AREA WITHIN 20N59W TO 19N65W TO 24N66W 
TO 26N63W TO 23N58W TO 20N59W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM SIXTEEN NEAR 22.3N 65.5W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM SIXTEEN NEAR 24.4N 66.5W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST TROPICAL STORM SIXTEEN NEAR 26.3N 66.2W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 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.

.CARIBBEAN WITHIN 12N70W TO 12N73W TO 11N75W TO 13N74W TO 13N70W
TO 12N70W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.