FZNT02 KNHC 100249
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT OCT 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT OCT 10.
24 HOUR FORECAST VALID 0000 UTC SUN OCT 11.
48 HOUR FORECAST VALID 0000 UTC MON OCT 12.

.WARNINGS.

...GULF OF AMERICA HURRICANE WARNING...
.HURRICANE ISAIAS NEAR 30.8N 86.6W 982 MB AT 0300 UTC OCT 10
MOVING N OR 05 DEG AT 17 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS
105 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM N SEMICIRCLE...140
NM SE QUADRANT AND 90 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN
0 NM N SEMICIRCLE...240 NM SE QUADRANT AND 300 NM SW QUADRANT
WITH SEAS TO 11.0 M. ELSEWHERE WITHIN 30N84W TO 30N89W TO 29N90W
TO 29N92W TO 28N92W TO 27N84W TO 30N84W WINDS 20 TO 33 KT. SEAS
3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 30N84W TO 27N96W TO 24N95W
TO 23N89W TO 26N83W TO 30N84W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN MIXED SWELL.
.12 HOUR FORECAST POST-TROPICAL ISAIAS NEAR 32.7N 86.7W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 65 KT.
.24 HOUR FORECAST POST-TROPICAL ISAIAS NEAR 34.7N 86.7W. MAXIMUM
SUSTAINED WINDS 30 KT GUSTS 45 KT. OVER FORECAST WATERS WITHIN
30N84W TO 27N96W TO 24N95W TO 23N89W TO 26N83W TO 30N84W
CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

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 21N70W TO 21N73W TO 19N76W TO 19N75W TO 20N73W TO
20N70W TO 21N70W...INCLUDING BETWEEN CUBA AND JAMAICA...E WINDS
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.ATLC WITHIN 16N35W TO 16N38W TO 12N40W TO 11N39W TO 11N37W TO
13N35W TO 16N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.24 HOUR FORECAST WITHIN 23N35W TO 21N37W TO 19N39W TO
15N38W TO 15N35W TO 23N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M
IN NE SWELL.
.48 HOUR FORECAST WITHIN 20N35W TO 19N36W TO 18N37W
TO 16N37W TO 15N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NE TO E SWELL.

.ATLC 30 HOUR FORECAST COLD FRONT FROM 31N49W TO 25N65W. WITHIN
31N50W TO 30N68W TO 26N67W TO 25N63W TO 29N52W TO 31N50W NE WINDS
20 TO 25 KT. SEAS 2.5 M.
.48 HOUR FORECAST COLD FRONT FROM 31N41W TO 24N65W. WITHIN
31N42W TO 31N50W TO 29N64W TO 26N64W TO 26N59W TO 28N44W TO
31N42W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN
31N42W TO 31N54W TO 29N63W TO 26N62W TO 26N55W TO 29N44W TO
31N42W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE SWELL.

.CARIBBEAN WITHIN 13N70W TO 13N76W TO 11N76W TO 12N73W TO 11N72W
TO 11N69W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 14N69W TO 14N71W TO 12N73W TO 11N72W TO
12N69W TO 11N65W TO 14N69W...INCLUDING THE GULF OF VENEZUELA...E
WINDS 20 TO 30 KT. SEAS 2.5 M.

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

$$
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.