000 FZNT02 KNHC 112033 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC SUN APR 11 2021 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC SUN APR 11. 24 HOUR FORECAST VALID 1800 UTC MON APR 12. 48 HOUR FORECAST VALID 1800 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 20N40W TO 16N50W. 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 22N35W TO 19N48W TO 24N64W TO 31N64W TO 31N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW TO N SWELL. .24 HOUR FORECAST TROUGH FROM 31N36W TO 23N45W. WITHIN 20N35W TO 18N45W TO 21N50W TO 31N50W TO 31N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW TO N SWELL. .42 HOUR FORECAST TROUGH 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 31N75W TO 26N80W. WITHIN 31N62W TO 26N70W TO 27N73W TO 31N70W TO 31N62W SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .48 HOUR FORECAST COLD FRONT FROM 31N64W TO 24N70W TO 21N73W. WITHIN 31N50W TO 25N63W TO 27N67W TO 31N60W TO 31N50W SW WINDS 20 TO 25 KT. SEAS 8 TO 10 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 S OF 28N 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. .12 HOUR FORECAST CONDITIONS TO IMPROVE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER LATTO. NATIONAL HURRICANE CENTER.