High Seas Forecast
Issued by NWS
Issued by NWS
604 FZPN03 KNHC 042118 HSFEP2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC SAT OCT 04 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC SAT OCT 04. 24 HOUR FORECAST VALID 1800 UTC SUN OCT 05. 48 HOUR FORECAST VALID 1800 UTC MON OCT 06. .WARNINGS. ...HURRICANE WARNING... .TROPICAL STORM PRISCILLA NEAR 15.5N 106.6W 1002 MB AT 2100 UTC OCT 04 MOVING NW OR 315 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S SEMICIRCLE...120 NM NE QUADRANT AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM N SEMICIRCLE...60 NM SE QUADRANT AND 0 NM SW QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 120 NM OF CENTER...EXCEPT 150 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 4 M. REMAINDER OF THE AREA FROM 10N TO 13N BETWEEN 102W AND 109W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO 3 FT. .24 HOUR FORECAST TROPICAL STORM PRISCILLA NEAR 16.3N 106.9W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM S SEMICIRCLE...200 NM NE QUADRANT AND 150 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM S AND 150 NM N SEMICIRCLES WITH SEAS TO 5 M. ELSEWHERE WITHIN 180 NM OF CENTER... EXCEPT 240 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 4 M. REMAINDER OF THE AREA FROM 10N TO 14N BETWEEN 101W AND 112W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO 3 FT. .36 HOUR FORECAST HURRICANE PRISCILLA NEAR 17.0N 107.3W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. .48 HOUR FORECAST HURRICANE PRISCILLA NEAR 17.8N 108.2W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM S SEMICIRCLE...200 NM NE QUADRANT AND 160 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 150 NM S AND 180 NM N SEMICIRCLES WITH SEAS TO 6 M. ELSEWHERE WITHIN 180 NM OF CENTER...EXCEPT 240 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 4 M. REMAINDER OF THE AREA FROM 10N TO 20N BETWEEN 100W AND 112W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO 3 FT. ...TROPICAL STORM WARNING... .TROPICAL STORM OCTAVE NEAR 14.9N 123.9W 997 MB AT 2100 UTC OCT 04 MOVING NNW OR 330 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 30 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM N SEMICIRCLE...75 NM SE QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO TO 6 M. ELSEWHERE WITHIN 120 NM OF CENTER... EXCEPT 90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 5 FT. REMAINDER OF THE AREA FROM 10N TO 20N BETWEEN 116W AND 128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 15.7N 123.6W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM OF CENTER...EXCEPT 60 NM SW QUADRANT WITH SEAS TO 6 M. ELSEWHERE WITHIN 120 NM OF CENTER...EXCEPT 90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 5 FT. REMAINDER OF THE AREA FROM 12N TO 19N BETWEEN 121W AND 129W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL. .48 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 16.0N 121.6W. 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 90 NM OF CENTER...EXCEPT 60 NM SW QUADRANT WITH SEAS TO 5 M. ELSEWHERE WITHIN 120 NM OF CENTER... EXCEPT 90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 5 FT. REMAINDER OF THE AREA FROM 14N TO 18N BETWEEN 121W AND 126W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 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. .SYNOPSIS AND FORECAST. .N OF 20N W OF 130W...AND FROM 20N TO 25N BETWEEN 115W AND 130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .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 2100 UTC SAT OCT 4... .TROPICAL STORM OCTAVE...NUMEROUS MODERATE TO STRONG WITHIN 90 NM W SEMICIRCLE. .TROPICAL STORM PRISCILLA...NUMEROUS MODERATE TO SCATTERED STRONG FROM 14N TO 19N BETWEEN 102W AND 111W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS FROM 10N85W TO 14N103W, THEN RESUMES SW OF OCTAVE FROM 11N129W TO 09N140W. ASIDE FROM THE CONVECTION ASSOCIATED WITH TROPICAL STORMS OCTAVE AND PRISCILLA...SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS NOTED FROM 05N TO 15N BETWEEN 83W AND 100W. .FORECASTER GR. NATIONAL HURRICANE CENTER.