120 
FZNT02 KNHC 202033
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU MAY 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC THU MAY 20.
24 HOUR FORECAST VALID 1800 UTC FRI MAY 21.
48 HOUR FORECAST VALID 1800 UTC SAT MAY 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 24N74W TO 22N77W TO 24N81W TO 27N80W TO 27N78W TO 
24N74W...INCLUDING THE STRAITS OF FLORIDA...NE TO E WINDS 20 TO 
25 KT. SEAS LESS THAN 8 FT. ELSEWHERE WITHIN 22N68W TO 22N73W TO
28N80W TO 30N80W TO 27N74W TO 22N68W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN NE SWELL. 
.24 HOUR FORECAST WITHIN 28N78W TO 27N80W TO 30N80W TO 29N79W TO
28N78W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. 
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.ATLC WITHIN 30N47W TO 30N49W TO 31N50W TO 31N45W TO 30N47W SW
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS.
SEAS LESS THAN 8 FT.

.ATLC WITHIN 08N44W TO 06N51W TO 09N55W TO 12N52W TO 11N44W TO
08N44W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 09N44W TO 06N52W TO 08N56W TO 13N55W TO
12N44W TO 09N44W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE 
SWELL.
.48 HOUR FORECAST WITHIN 07N50W TO 11N60W TO 16N58W TO 16N50W TO
14N47W TO 07N50W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE 
SWELL.

.ATLC 12 HOUR FORECAST LOW PRES...POSSIBLE SUBTROPICAL 
CYCLONE...N OF AREA. WITHIN 29N68W TO 30N74W TO 31N74W TO
31N67W TO 29N68W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE SUBTROPICAL CYCLONE...N 
OF AREA. WITHIN 29N69W TO 28N72W TO 29N75W TO 31N75W TO 31N64W TO
29N69W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE SUBTROPICAL CYCLONE...N OF
AREA. WITHIN 26N65W TO 28N73W TO 31N75W TO 31N59W TO 26N65W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NE SWELL.

.CARIBBEAN WITHIN 12N69W TO 12N71W TO 13N74W TO 15N73W TO 14N69W
TO 12N69W E WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 11N69W TO 12N79W TO 16N78W TO 16N73W TO
11N69W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST WITHIN 11N71W TO 12N72W TO 12N74W TO 13N73W TO
13N70W TO 11N71W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
WITHIN 12N75W TO 11N79W TO 14N79W TO 15N78W TO 14N72W TO 12N75W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. 

.CARIBBEAN 06 HOUR FORECAST WITHIN 16N85W TO 16N87W TO 17N87W TO
18N86W TO 17N85W TO 16N85W...INCLUDING THE GULF OF HONDURAS...E 
WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN 12 HOUR FORECAST WITHIN 20N80W TO 21N81W TO 21N82W TO
22N82W TO 21N79W TO 20N80W E WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 20N78W TO 20N83W TO 21N87W TO 22N87W TO
21N80W TO 20N78W...INCLUDING THE YUCATAN CHANNEL...NE TO E WINDS
20 TO 30 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.GULF OF MEXICO WITHIN 23N80W TO 24N85W TO 27N93W TO 30N89W TO
30N85W TO 23N80W...INCLUDING THE STRAITS OF FLORIDA...E TO SE 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST WITHIN 24N81W TO 23N85W TO 24N90W TO 30N93W TO
30N87W TO 24N81W...INCLUDING THE STRAITS OF FLORIDA...E TO SE 
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT...HIGHEST NEAR 27N88W.
.48 HOUR FORECAST WITHIN 24N85W TO 22N90W TO 25N94W TO 28N95W TO
29N89W TO 24N85W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

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

$$
.FORECASTER ERA. NATIONAL HURRICANE CENTER.