FZNT02 KNHC 210936
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC TUE JUL 21.
24 HOUR FORECAST VALID 0600 UTC WED JUL 22.
48 HOUR FORECAST VALID 0600 UTC THU JUL 23.

.WARNINGS.

...GULF OF AMERICA TROPICAL STORM WARNING...
.TROPICAL STORM BERTHA NEAR 28.7N 86.4W 998 MB AT 0900 UTC JUL
21 MOVING NW OR 315 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM N SEMICIRCLE
AND 70 NM S SEMICIRCLE. SEAS TO 4 M WITHIN 0 NM OF CENTER EXCEPT
60 NM SE QUADRANT. ELSEWHERE WITHIN 27N83W TO 30N84W TO 29.5N87W
TO 28N88W TO 27N86W TO 28N85W TO 27N83W WINDS 20 TO 33 KT. SEAS
2.5 TO 4 M.
.24 HOUR FORECAST TROPICAL STORM BERTHA NEAR 29.4N 87.6W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM N SEMICIRCLE...80 NM SE QUADRANT AND 90 NM SW
QUADRANT WITH SEAS TO 5 M. ELSEWHERE WITHIN 29N84W TO 30N89W TO
27N91W TO 27N88W TO 27N86W 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 90.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM N SEMICIRCLE AND 70 NM S SEMICIRCLE. SEAS TO 4
M OVER FORECAST WATERS WITHIN 60 NM S SEMICIRCLE. ELSEWHERE
WITHIN 30N88W TO 30N92W TO 28N92W TO 29N89W TO 30N88W WINDS 20 TO
33 KT. SEAS 2.5 TO 3.5 M. WITHIN 30N86W TO 30N89W TO 28N89W TO
28N88W TO 29N87W 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.
.30 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 11N70W TO 13N69W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. 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 WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.