High Seas Forecast
Issued by NWS
Issued by NWS
719 FZPN03 KNHC 170250 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 0430 UTC MON AUG 17 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 0000 UTC MON AUG 17. 24 HOUR FORECAST VALID 0000 UTC TUE AUG 18. 48 HOUR FORECAST VALID 0000 UTC WED AUG 19. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WITHIN 29N114W TO 30N116W TO 29N116W TO 27N116W TO 26N115W TO 29N114W...INCLUDING SEBASTIAN VIZCAINO BAY AND WITHIN 60 NM OF SHORE...NW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .33 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .REMNANTS OF HERNAN W OF AREA. OVER FORECAST WATERS WITHIN 19N139W TO 21N140W TO 15N140W TO 16N139W TO 19N139W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL. .06 HOUR FORECAST OVER FORECAST WATERS CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO 15N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS BUILDING TO 2.5 TO 3.0 M. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .WITHIN 12N87W TO 11N88W TO 10N88W TO 10N87W TO 11N87W TO 12N87W ...INCLUDING THE GULF OF PAPAGAYO...E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. WITHIN 10N91W TO 11N92W TO 10N93W TO 09N94W TO 09N93W TO 09N91W TO 10N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED NE TO E AND SW SWELL. .12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M IN SW SWELL. .24 HOUR FORECAST LITTLE CHANGE. .33 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 11N88W TO 10N88W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .48 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N88W TO 10N88W TO 10N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .WITHIN 01S112W TO 02N116W TO 00N128W TO 02S120W TO 03.4S120W TO 03.4S93W TO 01S112W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SE AND SW SWELL. .24 HOUR FORECAST WITHIN 02N100W TO 02N108W TO 00N112W TO 00N128W TO 03.4S120W TO 03.4S90W TO 02N100W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SE AND SW SWELL. .48 HOUR FORECAST WITHIN 01N98W TO 05N100W TO 02N111W TO 00N133W TO 03.4S120W TO 03.4S83W TO 01N98W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SE AND SW SWELL. .18 HOUR FORECAST TROPICAL WAVE NEAR 126W. WITHIN 14N124W TO 14N129W TO 12N129W TO 10N128W TO 09N123W TO 10N123W TO 14N124W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. .24 HOUR FORECAST LITTLE CHANGE. .42 HOUR FORECAST TROPICAL WAVE NEAR 134W. CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .27 HOUR FORECAST WITHIN 25N108W TO 26N109W TO 24N109W TO 23N108W TO 25N108W...INCLUDING THE GULF OF CALIFORNIA...E TO SE WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M. SCATTERED TO NUMEROUS TSTMS. .36 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. CONVECTION VALID AT 0250 UTC MON AUG 17... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM LOW PRES NEAR 11N74W TO 10N86W TO 07N97W TO 08N102W. ITCZ FROM 08N102W TO 08.5N121W THEN RESUMES FROM 09N123W TO 05N140W. SCATTERED TO NUMEROUS MODERATE AND ISOLATED STRONG FROM 02N TO 14.5N BETWEEN 77W AND 108W...FROM 06N TO 11N BETWEEN 108W AND 130W...AND FROM 01N TO 06N BETWEEN 138W AND 140W. $$ .FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.