FZNT02 KNHC 181355
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON MAY 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MON MAY 18.
24 HOUR FORECAST VALID 1200 UTC TUE MAY 19.
48 HOUR FORECAST VALID 1200 UTC WED MAY 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 17N39W TO 20N44W TO 20N57W TO 17N61W TO 06N53W TO
07N38W TO 17N39W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M
IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 17N54W TO 19N60W TO 09N56W TO 07N52W TO
08N44W TO 11N44W TO 17N54W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E
SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.ATLC 12 HOUR FORECAST WITHIN 20.5N71W TO 21N71.5W TO 20.5N72W
TO 20N72W TO 20N70.5W TO 20.5N71W E WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.36 HOUR FORECAST WITHIN 20.5N71W TO 21N71.5W TO 20.5N72W TO
20N72W TO 20N70.5W TO 20.5N71W E WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.ATLC 48 HOUR FORECAST WITHIN 31N35W TO 31N45W TO 30N43W TO
30N39W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO
N SWELL.

.CARIBBEAN WITHIN 16N73W TO 16N78W TO 13N80W TO 11N78W TO 13N71W
TO 16N73W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N76W TO 15N80W TO 13N82W TO 11N81W TO
11N76W TO 13N70W TO 16N76W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5
M.
.48 HOUR FORECAST WITHIN 15N71W TO 15N77W TO 14N80W TO 11N78W TO
10N76W TO 13N71W TO 15N71W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M.

.CARIBBEAN 12 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO
16N87W TO 16N85W TO 17N85W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.36 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO 16N87W TO
16N85W TO 17N85W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.GULF OF AMERICA 12 HOUR FORECAST WITHIN 22N88W TO 23N89W TO
23N90W TO 22N90W TO 21N90W TO 22N88W E WINDS 20 TO 25 KT. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.36 HOUR FORECAST WITHIN 22N88W TO 23N89W TO 23N90W TO 22N90W TO
21N90W TO 22N88W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.42 HOUR FORECAST CONDITIONS IMPROVE. 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 ERA. NATIONAL HURRICANE CENTER.