810 
FZNT02 KNHC 111549
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN APR 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SUN APR 11.
24 HOUR FORECAST VALID 1200 UTC MON APR 12.
48 HOUR FORECAST VALID 1200 UTC TUE APR 13.

.WARNINGS.

...ASHFALL ADVISORY...
LA SOUFRIERE ST VINCENT VOLCANO AT POSITION 13.3N 61.2W IS 
CURRENTLY UNDERGOING FREQUENT ERUPTIONS. ASH MAY BE REACHING THE 
SURFACE OF THE OCEAN AND LOW LEVEL VISIBILITY MAY BE REDUCED. 
MARINERS TRAVELING WITHIN THE AREA 18N35W TO 14N55W TO 13N62W TO 
10N56W TO 06N37W TO 18N35W ARE URGED TO EXERCISE CAUTION. THE 
DENSEST OF THE ASH IS W OF 45W. IF MARINERS ENCOUNTER VOLCANIC 
ASH OR FLOATING VOLCANIC DEBRIS...YOU ARE ENCOURAGED TO REPORT 
THE OBSERVATION TO THE NATIONAL HURRICANE CENTER BY CALLING 305-
229-4424.

.SYNOPSIS AND FORECAST.

.ATLC TROUGH FROM 26N35W TO 20N42W TO 16N53W. WITHIN 31N35W TO 
26N42W TO 31N52W TO 31N35W W TO NW WINDS 20 TO 25 KT. SEAS 12 TO 
17 FT IN NW SWELL. ELSEWHERE WITHIN 23N35W TO 19N48W TO 24N65W 
TO 31N65W TO 31N35W TO 23N35W WINDS 20 KT OR LESS. SEAS 8 TO 12 
FT IN NW TO N SWELL.
.24 HOUR FORECAST TROUGH FROM 31N37W TO 23N46W. WITHIN 21N35W TO 
18N46W TO 21N54W TO 31N54W TO 31N35W TO 21N35W WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN NW TO N SWELL.
.48 HOUR FORECAST TROUGH TO LIFT NE OF AREA. WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

.ATLC WITHIN 28N76W TO 27N80W TO 31N80W TO 31N76W TO 28N76W S TO 
SW WINDS 20 TO 25 KT. SEAS TO 9 FT. WINDS AND SEAS HIGHER IN AND 
NEAR SCATTERED TO NUMEROUS SHOWERS AND TSTMS W OF 75W.
.24 HOUR FORECAST COLD FRONT FROM 31N76W TO 27N80W. WITHIN 
31N67W TO 26N72W TO 27N75W TO 31N72W TO 31N67W S TO SW WINDS 20 
TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST COLD FRONT FROM 31N66W TO 24N73W TO 21N75W. 
WITHIN 31N52W TO 26N60W TO 27N66W TO 31N62W TO 31N52W SW WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT.

.CARIBBEAN WITHIN 16N85W TO 16N86W TO 17N86W TO 18N85W TO 18N84W
TO 16N85W...INCLUDING THE GULF OF HONDURAS...E TO SE WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO N OF 25N E OF 88W. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. WINDS AND SEAS HIGHER IN AND NEAR SCATTERED TO 
NUMEROUS SHOWERS AND TSTMS.
.18 HOUR FORECAST CONDITIONS TO IMPROVE.

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

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.