


High Seas Forecast
Issued by NWS
Issued by NWS
156 FZPN03 KNHC 041004 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC SAT OCT 4 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC SAT OCT 4. 24 HOUR FORECAST VALID 0600 UTC SUN OCT 5. 48 HOUR FORECAST VALID 0600 UTC MON OCT 6. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM OCTAVE NEAR 14.2N 123.2W 1002 MB AT 0900 UTC OCT 04 MOVING WNW OR 290 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM OF CENTER EXCEPT 0 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 75 NM OF CENTER EXCEPT 90 NM NE QUADRANT WITH SEAS TO 6.0 M. ELSEWHERE WITHIN 15N121W TO 16N123W TO 16N125W TO 14N124W TO 13N122W TO 13N121W TO 15N121W E WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M. REMAINDER OF AREA WITHIN 19N120W TO 20N123W TO 17N127W TO 12N126W TO 10N121W TO 10N119W TO 19N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 15.2N 124.1W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N SEMICIRCLE...40 NM SE QUADRANT AND 30 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM W SEMICIRCLE AND 60 NM E SEMICIRCLE WITH SEAS TO 6.0 M. ELSEWHERE WITHIN 17N124W TO 17N126W TO 16N126W TO 15N125W TO 15N123W TO 16N123W TO 17N124W N TO NE WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M. REMAINDER OF AREA WITHIN 19N122W TO 19N125W TO 17N129W TO 14N128W TO 12N122W TO 15N121W TO 19N122W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN MIXED SWELL. .48 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 15.8N 123.0W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 45 NM FROM CENTER WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 17N122W TO 17N123W TO 16N124W TO 15N124W TO 16N122W TO 17N122W NE TO E WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M. REMAINDER OF AREA WITHIN 16N122W TO 19N124W TO 18N127W TO 15N128W TO 14N126W TO 13N123W TO 16N122W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. ...GALE WARNING... .LOW PRESS 14N105W 1000 MB. WITHIN 16N102W TO 17N104W TO 16N107W TO 14N105W TO 12N105W TO 12N102W TO 16N102W SE TO S WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. .06 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 15N106W 999 MB. WITHIN 16N105W TO 17N105W TO 16N106W TO 15N104W TO 16N104W TO 16N105W E TO SE WINDS 25 TO 35 KT. SEAS 2.5 TO 3.0 M. WITHIN 17N104W TO 18N105W TO 16N107W TO 13N107W TO 14N104W TO 15N103W TO 17N104W SE TO S WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. WITHIN 13N104W TO 12N106W TO 11N106W TO 11N105W TO 11N104W TO 13N104W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 16N106W 998 MN. WITHIN 17N105W TO 17N106W TO 16N107W TO 15N107W TO 15N106W TO 15N105W TO 17N105W SE TO S WINDS 35 TO 45 KT. SEAS 2.5 TO 4.5 M. WITHIN 14N102W TO 18N107W TO 17N110W TO 12N112W TO 10N111W TO 10N103W TO 14N102W SW TO W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. WITHIN 18N103W TO 19N104W TO 19N105W TO 18N106W TO 18N105W TO 17N104W TO 18N103W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 17N107W 997 MN. WITHIN 19N106W TO 19N108W TO 16N108W TO 15N106W TO 17N105W TO 19N106W SE TO S WINDS 35 TO 45 KT. SEAS 5.5 TO 7.0 M. WITHIN 16N100W TO 20N109W TO 15N112W TO 10N112W TO 09N104W TO 12N100W TO 16N100W...INCLUDING NEAR CABO CORRIENTES...SW WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. .SYNOPSIS AND FORECAST. .WITHIN 15N94W TO 16N95W TO 15N96W TO 14N96W TO 14N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .12 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 0950 UTC SAT OCT 4... .TROPICAL STORM OCTAVE...NUMEROUS MODERATE TO STRONG FROM 12N TO 16N BETWEEN 121W AND 126W. .INVEST EP99...SCATTERED MODERATE TO STRONG FROM 10N TO 18N BETWEEN 99W AND 114W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS FROM 07N78W TO 11N90W TO 15N112W THEN RESUMES NEAR 11N126W AND CONTINUES TO 09N140W. SCATTERED MODERATE TO STRONG IS FROM 04N TO 14N E OF 99W. SCATTERED MODERATE IS FROM 06N TO 10N BETWEEN 134W AND 140W. $$ .FORECASTER RAMOS. NATIONAL HURRICANE CENTER.