FZPN01 KWBC 170404 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 0430 UTC SAT OCT 17 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE NATIONAL WEATHER SERVICE. EMAIL US AT VOSOPS@NOAA.GOV(LOWERCASE). FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM). FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH PACIFIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 4 METERS OR GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH, AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO PRESERVE CONTINUITY WHERE APPROPRIATE. SECURITE PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT TO 53N172E TO 50N180W TO 30N180W ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS SYNOPSIS VALID 0000 UTC OCT 17. 24 HOUR FORECAST VALID 0000 UTC OCT 18. 48 HOUR FORECAST VALID 0000 UTC OCT 19. .WARNINGS. ...STORM WARNING... .LOW 43N167W 1004 MB MOVING NE 30 KT. WITHIN 180 N NE AND 300 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE WITHIN 240 NM NE...300 NM NW...660 NM SW AND S AND 360 NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST LOW 45N150W 1009 MB. WITHIN 300 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 37N TO 47N BETWEEN 144W AND 162W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST S AND SW OF LOW. .42 HOUR FORECAST LOW 46N139W 1003 MB. WITHIN 180 NM W AND SW QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 6.5 M. .48 HOUR FORECAST LOW 46N136W 1003 MB. WITHIN 240 NM W AND SW QUADRANTS WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M. ELSEWHERE FROM 42N TO 49N BETWEEN 133W AND 145W WINDS 25 TO 40 KT. SEAS 3 TO 6.5 M...HIGHEST SW OF LOW. ...GALE WARNING... .LOW 57N148W 986 MB MOVING NE 10 KT. WITHIN 540 NM S AND 360 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 5.5 M... HIGHEST NEAR 50N151W. ELSEWHERE N OF A LINE FROM 42N138W TO 54N165W TO 57N169W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. .24 HOUR FORECAST LOW 59N141W 998 MB. WITHIN 120 NM NE...480 NM SE...600 NM S AND 540 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST S OF LOW. ALSO FROM 38N TO 49N BETWEEN 127W AND 144W WINDS LESS THAN 25 KT. SEAS 2.5 TO 4.5 M IN MIXED SWELL. .48 HOUR FORECAST LOW 59N142W 1010 MB. WITHIN 420 NM S AND SW QUADRANTS WINDS LESS THAN 25 KT. SEAS TO 2.5 M. ...GALE WARNING... .30 HOUR FORECAST LOW 43N180W 1007 MB. WITHIN 240 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS TO 3.5 M. .48 HOUR FORECAST LOW 49N169W 1005 MB. WITHIN 240 NM SE OF A FRONT FROM LOW TO 41N180W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. .SYNOPSIS AND FORECAST. .LOW 51N134W 1006 MB MOVING NE 20 KT. WITHIN 540 NM S AND 360 SE QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST LOW DISSIPATED INLAND. CONDITIONS DIMINISHED. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 300 NM SW OF A LINE FROM 56N173W TO 61N178W...AND FROM 43N TO 45N BETWEEN 165W AND 169W. .24 HOUR FORECAST DENSE FOG WITHIN 180 NM N OF A LINE FROM 62N168W TO 63N175W. .48 HOUR FORECAST DENSE FOG WITHIN 180 NM N OF A LINE FROM 58N161W TO 64N174W...AND FROM 44N TO 52N BETWEEN 162W AND 171W. .FORECASTER BANCROFT. OCEAN PREDICTION CENTER. NATIONAL HURRICANE CENTER MIAMI FL E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE EQUATOR E OF 120W SYNOPSIS VALID 0000 UTC SAT OCT 17. 24 HOUR FORECASTVALID 0000 UTC SUN OCT 18. 48 HOUR FORECAST VALID 0000 UTC MON OCT 19. .WARNINGS. ...HURRICANE WARNING... .HURRICANE TRUDY NEAR 15.2N 102.5W 979 MB AT 0300 UTC OCT 17 MOVING N OR 350 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM S SEMICIRCLE...120 NM NE QUADRANT AND 100 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 150 NM NE AND SW QUADRANTS...180 NM NW QUADRANT AND 120 NM SE QUADRANT WITH SEAS TO 9.5 M. ELSEWHERE WITHIN 17N100W TO 17N102W TO 17N104W TO 16N105W TO 14N104W TO 14N101W TO 17N100W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 17N100W TO 20N107W TO 16N110W TO 11N109W TO 09N103W TO 11N99W TO 17N100W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. .24 HOUR FORECAST HURRICANE TRUDY NEAR 17.7N 104.4W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE QUADRANT...80 NM SE QUADRANT...70 NM SW QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER 90 NM NE QUADRANT...210 NM NW QUADRANT...AND 150 NM S SEMICIRCLE WITH SEAS TO 11 M. ELSEWHERE WITHIN 18N103W TO 19N105W TO 19N106W TO 17N106W TO 16N104W TO 17N103W TO 18N103W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 17N100W TO 22N112W TO 10N119W TO 03N104W TO 17N100W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. .48 HOUR FORECAST HURRICANE TRUDY NEAR 20.0N 106.1W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER 60 NM E SEMICIRCLE 90 NM W SEMICIRCLE WITH SEAS TO 7.5 M. ELSEWHERE WITHIN 21N106W TO 21N107W TO 20N107W TO 20N106W TO 21N105W TO 21N106W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 22N106W TO 22N108W TO 21N109W TO 19N108W TO 18N106W TO 19N105W TO 22N106W 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... .WITHIN 16N93W TO 16N95W TO 16N96W TO 14N95W TO 14N94W TO 16N93W...INCLUDING THE GULF OF TEHUANTEPEC...NW WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. .12 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N96W TO 11N96W TO 11N95W TO 12N93W TO 16N94W N WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 13N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 45 KT. SEAS 4.0 TO 5.0 M. ELSEWHERE WITHIN 14N93W TO 16N94W TO 16N95W TO 12N97W TO 11N95W TO 12N94W TO 14N93W N WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 13N92W TO 15N93W TO 16N96W TO 13N97W TO 09N97W TO 11N93W TO 13N92W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL. .48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE WITHIN 15N93W TO 16N95W TO 16N96W TO 10N98W TO 09N97W TO 13N94W TO 15N93W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN 11N91W TO 16N93W TO 15N96W TO 09N100W TO 06N99W TO 07N93W TO 11N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL. .SYNOPSIS AND FORECAST. .REMNANTS OF SIMON NEAR 22N101W 1005 MB. WITHIN 23N109W TO 24N110W TO 24N112W TO 23N113W TO 21N111W TO 22N109W TO 23N109W WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .WITHIN 10N110W TO 19N140W TO 03.4S120W TO 03N115W TO 03.4S91W TO 10N110W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL. .24 HOUR FORECAST WITHIN 13N114W TO 14N140W TO 09N140W TO03.4S120W TO 03.4S84W TO 13N114W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL. .48 HOUR FORECAST WITHIN 01N102W TO 07N109W TO 08N114W TO 00N122W TO 03.4S120W TO 03.4S93W TO 01N102W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL. .12 HOUR FORECAST WITHIN 29N135W TO 30N134W TO 30N140W TO 25N140W TO 29N135W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .24 HOUR FORECAST WITHIN 27N130W TO 30N128W TO 30N140W TO 15N140W TO 15N139W TO 25N136W TO 27N130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .48 HOUR FORECAST WITHIN 30N123W TO 30N140W TO 22N140W TO 26N128W TO 30N123W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 0300 UTC SAT OCT 17... .HURRICANE TRUDY...NUMEROUS MODERATE SCATTERED STRONG FROM 13N TO 18N BETWEEN 100W AND 106W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 09N84W TO 11N94W...FROM 10N101W TO 05N129W. ITCZ FROM 04N129W TO BEYOND 06N140W. SCATTERED MODERATE ISOLATED STRONG S OF 09N E OF 91W. NUMEROUS MODERATE SCATTERED STRONG CONVECTION FROM 01N TO 08N BETWEEN 105W AND 122W. $$ .FORECASTER DELGADO. NATIONAL HURRICANE CENTER.