000
FZNT02 KNHC 211621
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED APR 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC WED APR 21.
24 HOUR FORECAST VALID 1200 UTC THU APR 22.
48 HOUR FORECAST VALID 1200 UTC FRI APR 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC STATIONARY FRONT FROM 31N74W TO 28N80W. WITHIN 150 NM SE 
OF FRONT BETWEEN 73W AND 77W. WINDS 20 KT OR LESS. SEAS LESS 
THAN 8 FT. WINDS AND SEAS HIGHER IN AND NEAR SCATTERED SHOWERS 
AND TSTMS.
.06 HOUR FORECAST STATIONARY FRONT FROM 31N74W TO 28N80W. WITHIN 
29N70W TO 29N75W TO 30N72W TO 31N71W TO 31N67W TO 29N70W SW 
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N69W TO 27N75W TO 24N80W. 
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 12 HOUR FORECAST COLD FRONT FROM 31N78W TO 30N81W. WITHIN 
30N78W TO 30N79W TO 30N81W TO 31N81W TO 31N77W TO 30N78W W TO NW 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST COLD FRONT FROM 31N75W TO 28N81W. WITHIN 
30N78W TO 30N79W TO 30N81W TO 31N81W TO 31N77W TO 30N78W NW
TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT TO MERGE WITH COLD FRONT DESCRIBED 
ABOVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC WITHIN 30N45W TO 30N47W TO 31N53W TO 31N54W TO 31N37W TO 
30N45W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL. 
.24 HOUR FORECAST WITHIN 31N35W TO 29N35W TO 28N44W TO 31N51W TO 
31N45W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW 
SWELL...HIGHEST NE. 
.48 HOUR FORECAST WITHIN 31N35W TO 26N35W TO 26N38W TO 29N40W TO 
31N41W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW 
SWELL.

.ATLC WITHIN 12N45W TO 07N47W TO 07N51W TO 09N48W TO 10N51W TO 
12N45W WINDS 20 KT OR LESS. SEAS TO 8 FT IN E SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 10N49W TO 08N50W TO 07N52W TO 08N53W TO 
09N51W TO 10N49W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.

.CARIBBEAN WITHIN 12N72W TO 11N77W TO 13N78W TO 15N75W TO 14N73W 
TO 12N72W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT...HIGHEST 
NEAR 11N76W.
.24 HOUR FORECAST WITHIN 11N74W TO 11N77W TO 12N78W TO 13N75W TO 
12N74W TO 11N74W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO COLD FRONT FROM 30N88W TO 28N93W TO 26N98W. 
WITHIN 28N92W TO 29N95W TO 30N95W TO 30N92W TO 30N90W TO 28N92W 
N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST COLD FRONT FROM 30N86W TO 26N94W. WINDS 
20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO S OF 27N E OF 86W. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. WINDS AND SEAS HIGHER IN AND NEAR SCATTERED 
SHOWERS AND TSTMS.
.18 HOUR FORECAST CONDTIONS TO IMPROVE. WINDS 20 KT OR LESS. 
SEAS LESS THAN 8 FT.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.