High Seas Forecast
Issued by NWS
Issued by NWS
396 FZPN03 KNHC 111528 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC MON AUG 11 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1200 UTC MON AUG 11. 24 HOUR FORECAST VALID 1200 UTC TUE AUG 12. 48 HOUR FORECAST VALID 1200 UTC WED AUG 13. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .POST-TROPICAL CYCLONE IVO NEAR 23.2N 119.6W 1008 MB AT 1500 UTC AUG 11 MOVING WNW OR 295 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 90 NM NE QUADRANT WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M. ELSEWHERE FROM 22N TO 24N BETWEEN 118 AND 120W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN MIXED SWELL. .12 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 23.4N 121.2W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. WITHIN 60 NM NE QUADRANT WINDS 20 KT OT LESS. SEAS TO 2.5 M IN MIXED SWELL. .24 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 23.5N 123.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .36 HOUR FORECAST...DISSIPATED. .N OF 29N W OF 135W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN NE SWELL. .18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .S OF 05N BETWEEN 127W AND 133W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN MIXED SW AND NW SWELL. .12 HOUR FORECAST 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 1500 UTC MON AUG 11... .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH AXIS EXTENDS FROM 10N84W TO 09N93W TO 07N110W TO 14N120W TO 11N133W. CLUSTERS OF MODERATE TO STRONG CONVECTION ARE NOTED FROM 07N TO 13N BETWEEN 90W AND 95W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION CAN BE FOUND FROM 05N TO 08N E OF 80W... INCLUDING THE ENTRANCE TO THE GULF OF PANAMA...FROM 07N TO 12N BETWEEN 100W AND 115W...AND FROM 08N TO 10N BETWEEN 137W AND 140W. $$ .FORECASTER GR. NATIONAL HURRICANE CENTER.