


High Seas Forecast
Issued by NWS
Issued by NWS
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087 FZPN01 KWBC 010957 HSFEP1 HIGH SEAS FORECAST NWS OCEAN PREDICTION CENTER WASHINGTON DC 1030 UTC MON SEP 01 2025 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. 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). SECURITE PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT TO 50N 160E ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS SYNOPSIS VALID 0600 UTC SEP 01 SEP. 24 HOUR FORECAST VALID 0600 UTC SEP 02. 48 HOUR FORECAST VALID 0600 UTC SEP 03. .WARNINGS. ...GALE WARNING... .LOW 58N179W 989 MB NEARLY STATIONARY THEN WILL MOVE NE 10 KT AFTER 12 HOURS. N OF 54N W OF 161W WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE N OF 45N BETWEEN 160W AND 168E WINDS TO 25 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 60N175W 998 MB. WITHIN 240 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE FROM 54N TO 63N BETWEEN 165W AND 180W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 66N170W 1010 MB. CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 36N173E 1005 MB MOVING NE 35 KT. FROM 32N TO 37N BETWEEN 177E AND 161E WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. .24 HOUR FORECAST LOW 41N173W 1000 MB. WITHIN 120 NM EITHER SIDE OF A LINE FROM 38N174W TO LOW CENTER TO 48N165W WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 35N168E TO 45N174W TO 47N167W TO 39N169W TO 31N178E TO 35N168E WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. .48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 54N162W 1007 MB AND SECOND CENTER 44N163W. FROM 50N TO 57N BETWEEN 155W AND 166W WINDS 25 TO 35 KT. SEAS 4 TO 6.5 M. ELSEWHERE FROM 35N TO 53N BETWEEN 159W AND 174W WINDS 20 TO 30 KT. SEAS 3 TO 5 M. ...GALE WARNING... .24 HOUR FORECAST LOW W OF AREA NEAR 45N154E 998 MB. FROM 42N TO 47N W OF 162E WINDS 25 TO 35 KT. SEAS TO 2.5 M. .48 HOUR FORECAST LOW 46N160E 1001 MB. WITHIN 180 NM E AND NE OF A LINE FROM LOW CENTER TO 46N165E TO 44N169E TO 43N169E TO 42N166E WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE FROM 40N TO 48N W OF 171E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .SYNOPSIS AND FORECAST. .FROM 49N TO 57N BETWEEN 132W AND 137W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 2.5 M. .24 HOUR FORECAST NEW LOW 49N129W 1017 MB. FROM 49N TO 59N BETWEEN 132W AND 139W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 3 M. .48 HOUR FORECAST LOW 46N136W 1016 MB. FROM 46N TO 53N BETWEEN 134W AND 144W WINDS LESS THAN 25 KT. SEAS TO 3 M. .COMPLEX LOW WITH MAIN CENTER 38N151W 1007 MB DRIFTING NE. FROM 32N TO 46N BETWEEN 142W AND 156W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. .24 HOUR FORECAST LOW 37N151W 1010 MB. FROM 33N TO 45N BETWEEN 142W AND 155W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. .48 HOUR FORECAST LOW 37N150W 1010 MB. WITHIN 480 NM N QUADRANT AND WITHIN 120 NM NE OF A LINE FROM 40N148W TO 36N144W TO 32N144W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .COMPLEX LOW WITH MEAN CENTER 39N173W 1011 MB MOVING NE 15 KT. FROM 34N TO 42N BETWEEN 164W AND 178E WINDS TO 25 KT. SEAS 2.5 TO 3.5 M. .24 HOUR FORECAST LOW ABSORBED WITH CONDITIONS DESCRIBED WITH LOW 41N173W IN WARNINGS SECTION ABOVE. .LOW 50N165W 1011 MB MOVING NE 10 KT. FROM 42N TO 54N BETWEEN 154W AND 177W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .24 HOUR FORECAST LOW AND CONDITIONS DIMINISHED. .24 HOUR FORECAST DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 60 NM SE OF A LINE FROM 48N166W TO 45N168W. .48 HOUR FORECAST DENSE FOG FROM 55N TO 59N BETWEEN 151W AND 163W...AND FROM 42N TO 45N BETWEEN 170E AND 164E. .FORECASTER HYDE. 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 0600 UTC MON SEP 1. 24 HOUR FORECAST VALID 0600 UTC TUE SEP 2. 48 HOUR FORECAST VALID 0600 UTC WED SEP 3. .WARNINGS. ...HURRICANE WARNING... .TROPICAL STORM KIKO NEAR 14.1N 125.5W 1004 MB AT 0900 UTC SEP 01 MOVING W OR 265 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM N SEMICIRCLE...20 NM SE QUADRANT AND 10 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 30 NM NE AND 20 NM NW QUADRANTS AND 0 NM S SEMICIRCLE WITH SEAS TO 4 M. ELSEWHERE WITHIN 16N124W TO 16N126W TO 15N127W TO 14N127W TO 14N126W TO 15N124W TO 16N124W WINDS 20 TO 23 KT. SEAS 2.5 TO 3.0 M IN NE TO E SWELL. .24 HOUR FORECAST TROPICAL STORM KIKO NEAR 13.7N 128.2W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NW AND SE QUADRANTS...50 NM NE QUADRANT AND 30 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 45 NM NE SEMICIRCLE AND 0 NM SW SEMICIRCLE WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 14N128W TO 15N129W TO 14N129W TO 13N129W TO 13N128W TO 14N128W WINDS 20 TO 33 KT. SEAS 3.0 TO 3.5 M. REMAINDER OF AREA WITHIN 17N128W TO 15N130W TO 14N130W TO 13N128W TO 15N128W TO 14N127W TO 17N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL. .36 HOUR FORECAST HURRICANE KIKO NEAR 13.5N 129.6W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. SEAS TO 6 M. .48 HOUR FORECAST HURRICANE KIKO NEAR 13.5N 131.2W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 40 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM NW SEMICIRCLE AND 30 NM SE SEMICIRCLE WITH SEAS TO 7.5 M. ELSEWHERE WITHIN 16N132W TO 15N133W TO 13N131W TO 14N131W TO 13N131W TO 14N130W TO 16N132W WINDS 20 TO 33 KT. SEAS 3.5 TO 5.0 M. REMAINDER OF AREA WITHIN 15N129W TO 17N129W TO 17N133W TO 16N135W TO 10N130W TO 10N128W TO 15N129W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN E TO SE 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. .WITHIN 17N101W TO 17N101.5W TO 16N100.5W TO 16.5N100.5W TO 17N101W E TO SE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN SE SWELL. .24 HOUR FORECAST WITHIN 19N105.5W TO 19N106W TO 18.5N106W TO 18N105.5W TO 18N104.5W TO 18.5N104.5W TO 19N105.5W...INCLUDING NEAR CABO CORRIENTES...SE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN SE SWELL. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 19.5N111W 1007 MB. WITHIN 21N109.5W TO 21N110.5W TO 20N110.5W TO 20N110W TO 20N109.5W TO 21N109.5W SE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN SE SWELL. ELSEWHERE WITHIN 21N108W TO 21N110W TO 20N111W TO 20N110W TO 20N108W TO 21N108W WINDS 20 KT OR LESS. SEAS 2.5 M IN SE SWELL. .WITHIN 08N103W TO 08N105W TO 08N106W TO 07N107W TO 06N106W TO 07N104W TO 08N103W WINDS 20 KT OR LESS. SEAS 2.5 M IN S SWELL. WITHIN 03S112W TO 02S118W TO 02S120W TO 03.4S120W TO 03S117W TO 03.4S111W TO 03S112W WINDS 20 KT OR LESS. SEAS 2.5 M IN SE SWELL. .24 HOUR FORECAST WITHIN 10N106W TO 11N107W TO 10N108W TO 08N109W TO 08N107W TO 09N106W TO 10N106W WINDS 20 KT OR LESS. SEAS 2.5 M IN S SWELL. WITHIN 00N104W TO 01S115W TO 03.4S119W TO 03.4S99W TO 00N104W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S SWELL. .48 HOUR FORECAST WITHIN 13N107W TO 11N113W TO 07N117W TO 06N114W TO 06N111W TO 09N108W TO 13N107W WINDS 20 KT OR LESS. SEAS 2.5 M IN SE TO S SWELL. WITHIN 03S104W TO 01S106W TO 02S114W TO 03.4S116W TO 03.4S99W TO 03S104W WINDS 20 KT OR LESS. SEAS 2.5 M IN S SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 0900 UTC MON SEP 1... .T.S. KIKO...NUMEROUS MODERATE TO STRONG FROM 13.5N TO 14.5N BETWEEN 124W AND 125.5W. SCATTERED TO LOCALLY NUMEROUS MODERATE TO STRONG CONVECTION ELSEWHERE FROM 09.5N TO 18N BETWEEN 121W AND 128W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 10.5N74W TO 10N80W TO 13N99W TO 11N108W TO 14.5N120W THEN RESUMES FROM 12N127W TO BEYOND 09N140W. NUMEROUS MODERATE TO STRONG CONVECTION FROM 06N TO 10N E OF 84.5W. SCATTERED MODERATE ISOLATED STRONG CONVECTION FROM 07N TO 20N BETWEEN 95W AND 112W AND FROM 08N TO 11.5N BETWEEN 127W AND 140W. $$ .FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.