808
FZNT02 KNHC 210359
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE JUL 21 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AMERICA

SYNOPSIS VALID 0000 UTC TUE JUL 21.
24 HOUR FORECAST VALID 0000 UTC WED JUL 22.
48 HOUR FORECAST VALID 0000 UTC THU JUL 23.

.WARNINGS.

...GULF OF AMERICA TROPICAL STORM WARNING...
.TROPICAL STORM BERTHA NEAR 28.2N 85.9W 999 MB AT 0300 UTC JUL
21 STATIONARY. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
TROPICAL STORM FORCE WINDS WITHIN 0 NM N SEMICIRCLE AND 60 NM S
SEMICIRCLE. SEAS LESS THAN 4 M.
.24 HOUR FORECAST TROPICAL STORM BERTHA NEAR 29.1N 87.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 60 NM NE QUADRANT...90 NM SE
QUADRANT...60 NM SW QUADRANT AND 30 NM NW QUADRANT WITH SEAS TO
5 M. ELSEWHERE WITHIN 29N84W TO 30N89W TO 27N90W TO 26N88W TO
26N87W TO 28N85W TO 29N84W WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST TROPICAL STORM BERTHA INLAND NEAR 29.3N 89.4W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM N SEMICIRCLE AND 70 NM S SEMICIRCLE. SEAS 4 M
OR GREATER OVER FORECAST WATERS WITHIN 90 NM SE QUADRANT AND 60
NM SW QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 30N87W TO
30N89W TO 28N93W TO 27N91W TO 27N90W TO 28N87W TO 30N87W WINDS 20
TO 33 KT. SEAS 2.5 TO 4 M. WITHIN 30N86W TO 30N89W TO 28N88W TO
29N92W TO 26N92W TO 28N85W TO 30N86W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN W SWELL.

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 WITHIN 21N71W TO 21N71.5W TO 20.5N72W TO 20N72W TO
20N70.5W TO 21N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 20N71W TO 20N73W TO 21N74W TO 20N75W TO
19N74W TO 20N72W TO 20N71W...INCLUDING THE WINDWARD PASSAGE...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.CARIBBEAN WITHIN 13N70W TO 13N75W TO 11N74W TO 12N72W TO 11N71W
TO 12N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS TO 2.5 M NEAR 12N74W.
.24 HOUR FORECAST WITHIN 13N70W TO 14N77W TO 12N80W TO 11N79W TO
12N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT EXCEPT 25 TO 30 KT OFFSHORE COLOMBIA. SEAS 2.5
TO 3 M W OF 73W.
.48 HOUR FORECAST WITHIN 13N69W TO 14N71W TO 13N75W TO 11N75W TO
12N72W TO 12N70W TO 13N69W NE TO E WINDS 20 TO 25 KT...EXCEPT 25
TO 30 KT IN THE GULF OF VENEZUELA. SEAS TO 2.5 M OUTSIDE GULF OF
VENEZUELA. WITHIN 12N75W TO 13N76W TO 13N79W TO 12N80W TO 10N79W
TO 12N75W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE SWELL.

.CARIBBEAN 24 HOUR FORECAST WITHIN 16.5N85W TO 16.5N86W TO
16N86W TO 16N85W TO 16.5N85W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.