High Seas Forecast
Issued by NWS
Issued by NWS
587 FZPN02 KWBC 021125 HSFEPI HIGH SEAS FORECAST FOR METAREA XII NWS OCEAN PREDICTION CENTER WASHINGTON DC 1145 UTC SAT AUG 02 2025 CCODE/2:31:12:11:00/AOW+POR+AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 AUG 02. 24 HOUR FORECAST VALID 0600 UTC AUG 03. 48 HOUR FORECAST VALID 0600 UTC AUG 04. .WARNINGS. ...TROPICAL STORM WARNING... .48 HOUR FORECAST TROPICAL STORM KROSA NEAR 42.7N 164.5E. MAXIMUM SUSTAINED WINDS 40 KT GUST 50 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE...120 NM SE...110 NM SW QUADRANTS. SEAS 4 M OR GREATER WITHIN 60 NM NE...90 NM SE...240 NM SW...120 NM NW QUADRANTS SEAS TO 6 M. ELSEWHERE FROM 34N TO 46N W OF 170W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. .SYNOPSIS AND FORECAST. .LOW 56N178E 984 MB NEARLY STATIONARY. WITHIN 720 NM S AND 420 NM N SEMICIRCLES WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M...HIGHEST S OF CENTER. .24 HOUR FORECAST LOW 57N179E 991 MB. WITHIN 540 NM SE QUADRANT WINDS TO 25 KT. SEAS TO 3.5 M. .48 HOUR FORECAST LOW 57N177W 995 MB. CONDITIONS DIMINISHED. .COMPLEX LOW WITH FIRST CENTER 43N177W 1011 MB MOVING NE 30 KT AND SECOND CENTER 40N179E 1009 MB MOVING NE 30 KT. WITHIN 360 NM SE OF A LINE FROM 48N164W TO 46N174W TO 41N177E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .24 HOUR FORECAST COMBINED LOW 50N159W 1012 MB. WITHIN 360 NM S AND SE OF A LINE FROM 50N153W TO 49N163W TO 43N175W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .48 HOUR FORECAST LOW 50N143W 1008 MB. FROM 44N TO 52N BETWEEN 136W AND 163W WINDS TO 25 KT. SEAS TO 3 M. .FROM 32N TO 43N BETWEEN 119W AND 125W WINDS 20 TO 30 KT. SEAS TO 2.5 M. .24 HOUR FORECAST FROM 32N TO 43N BETWEEN 119W AND 126W WINDS 20 TO 30 KT. SEAS TO 3 M. .48 HOUR FORECAST FROM 31N TO 39N BETWEEN 119W AND 125W WINDS 20 TO 30 KT. SEAS TO 3.5 M. .LOW 35N174E 1007 MB MOVING NE 10 KT. S OF 37N BETWEEN 178E AND 170E WINDS TO 25 KT. SEAS TO 2.5 M. .24 HOUR FORECAST LOW 39N177E 1008 MB. FROM 31N TO 41N BETWEEN 176W AND 173E WINDS 20 TO 30 KT. SEAS TO 3 M. .48 HOUR FORECAST LOW 42N178W 1011 MB. WITHIN 360 NM SE SEMICIRCLE WINDS TO 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST NEW LOW 35N169E 1011 MB. WITHIN 240 NM SE SEMICIRCLE WINDS TO 25 KT. SEAS TO 2.5 M. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 55N BETWEEN 156W AND 168W...AND WITHIN 300 NM N AND NE OF A LINE FROM 54N170W TO 57N175W TO 58N178E TO 55N177E. .24 HOUR FORECAST DENSE FOG FROM 45N TO 49N BETWEEN 152W AND 172W...AND FROM 49N TO 53N W OF 177E...AND N OF 61N W OF 168W .48 HOUR FORECAST DENSE FOG WITHIN 240 NM NW OF A LINE FROM 48N142W TO 42N167W...AND FROM 40N TO 47N W OF 164E...AND FROM 49N TO 53N W OF 176W...AND FROM 53N TO 61N BETWEEN 169W AND 176W. .FORECASTER POCHE. 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 SAT AUG 2. 24 HOUR FORECAST VALID 0600 UTC SUN AUG 3. 48 HOUR FORECAST VALID 0600 UTC MON AUG 4. .WARNINGS. ...HURRICANE WARNING... .HURRICANE GIL NEAR 17.4N 126.8W 991 MB AT 0900 UTC AUG 02 MOVING WNW OR 300 DEG AT 17 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE QUADRANT...100 NM SE QUADRANT...50 NM SW QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 150 NM W SEMICIRCLE...270 NM NE QUADRANT AND 240 NM SE QUADRANT WITH SEAS TO 10 M. ELSEWHERE WITHIN 20N123W TO 21N125W TO 21N129W TO 19N129W TO 16N127W TO 15N123W TO 20N123W WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER AREA WITHIN 24N120W TO 25N129W TO 07N129W TO 14N117W TO 24N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM GIL NEAR 19.9N 132.3W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE QUADRANT...60 NM SE QUADRANT...50 NM SW QUADRANT...AND 80 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM NE QUADRANT...210 NM SE QUADRANT...210 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH SEAS TO 9.5 M. ELSEWHERE WITHIN 22N129W TO 23N133W TO 23N135W TO 20N135W TO 18N133W TO 20N129W TO 22N129W WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER AREA WITHIN 22N123W TO 27N129W TO 24N140W TO 14N140W TO 09N132W TO 12N126W TO 22N123W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL. .36 HOUR FORECAST POST-TROPICAL GIL NEAR 21.1N 135.2W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. .48 HOUR FORECAST POST- TROPICAL GIL NEAR 22.0N 138.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 180 NM NE QUADRANT...90 NM SE QUADRANT...90 NM SW QUADRANT...AND 120 NM NW QUADRANT WITH SEAS TO 6.0 M. ELSEWHERE WITHIN 23N136W TO 25N138W TO 25N140W TO 21N140W TO 21N139W TO 22N136W TO 23N136W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 25N131W TO 29N140W TO 22N137W TO 21N140W TO 11N140W TO 13N136W TO 25N131W 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. .SYNOPSIS AND FORECAST. .WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS 2.5 M. .24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .WITHIN 25N132W TO 25N140W TO 12N140W TO 13N132W TO 17N130W TO 25N132W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL. .24 HOUR FORECAST CONDITIONS MERGED WITH GIL. .WITHIN 02N91W TO 08N95W TO 07N101W TO 03.4S99W TO 01S91W TO 03.4S84W TO 02N91W...EXCEPT LEE OF GALAPAGOS ISLANDS... WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW SWELL. .24 HOUR FORECAST WITHIN 02S86W TO 01S106W TO 01N121W TO 00N125W TO 03.4S120W TO 03.4S83W TO 02S86W...EXCEPT LEE OF GALAPAGOS ISLANDS... WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL. .48 HOUR FORECAST WITHIN 00N105W TO 00N111W TO 03.4S118W TO 03.4S102W TO 00N105W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SW SWELL. .42 HOUR FORECAST WITHIN 16N116W TO 17N117W TO 16N120W TO 14N120W TO 12N120W TO 13N116W TO 16N116W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE TO S SWELL. .48 HOUR FORECAST WITHIN 17N117W TO 17N120W TO 16N121W TO 13N121W TO 13N118W TO 14N117W TO 17N117W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. CONVECTION VALID AT 0840 UTC SAT AUG 2... .HURRICANE GIL...SCATTERED TO NUMEROUS MODERATE TO STRONG FROM 14N TO 18N BETWEEN 125W AND 128W. SCATTERED MODERATE ISOLATED STRONG ELSEWHERE FROM 10N TO 20N BETWEEN 118W AND 130W. .INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 09N85W TO 09N109W TO 12N113W. IT RESUMES FROM 12N128W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 10N BETWEEN 95W AND 101W...AND FROM 06N TO 18N BETWEEN 102W AND 113W. SCATTERED MODERATE FROM 04N TO 10N BETWEEN 130W AND 140W. $$ .FORECASTER AL. NATIONAL HURRICANE CENTER. NATIONAL WEATHER SERVICE HONOLULU HI NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E SYNOPSIS VALID 0600 UTC AUG 02 2025. 24 HOUR FORECAST VALID 0600 UTC AUG 03 2025. 48 HOUR FORECAST VALID 0600 UTC AUG 04 2025. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .LOW FORMER TROPICAL DEPRESSION IONA NEAR 16N180W 1008 MB MOVING W 15 KT. WINDS 20 TO 30 KT FROM 14N TO 22N BETWEEN 177E AND 177W. SEAS 3 TO 5 M WITHIN 210 NM OF LOW. SEAS 2.5 TO 3 M ELSEWHERE FROM 14N TO 22N BETWEEN 177E AND 172W. SCATTERED MODERATE TSTMS WITHIN 90 NM OF LOW. ISOLATED MODERATE TSTMS ELSEWHERE FROM 14N TO 22N BETWEEN 177E AND 174W. .24 HOUR FORECAST LOW 18N175E 1009 MB. WINDS 20 TO 30 KT FROM 17N TO 23N BETWEEN 174E AND 180W. SEAS 2.5 TO 4 M FROM 18N TO 25N BETWEEN 174E AND 180W. .48 HOUR FORECAST LOW 20N170E 1009 MB. WINDS 20 TO 30 KT FROM 21N TO 27N BETWEEN 172E AND 175E. SEAS 2.5 TO 3M TO 22N TO 27N BETWEEN 172E AND 176E. SEE BULLETIN TCMCP1 ISSUED BY CPHC FOR MORE INFORMATION FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .FRONT 30N170E 24N165E NEARLY STATIONARY. WINDS 20 TO 25 KT WITHIN 180 NM E OF FRONT. SEAS 2.5 TO 3 M WITHIN 90 NM E OF FRONT. ISOLATED MODERATE TSTMS FROM 24N TO 26N BETWEEN 164E AND 167E. .24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N170E 25N162E. WINDS 20 TO 25 WITHIN 180 NM E OF TROUGH. SEAS LOWERED TO 2.5 M OR LOWER. .48 HOUR FORECAST TROUGH 30N165E 25N162E. WINDS EASED TO 20 KT OR LESS. .TROUGH 14N158W 06N160W MOVING W SLOWLY. WINDS 20 TO 25 KT FROM 10N TO 14N BETWEEN 162W AND 155W. SEAS 2.5 TO 3.5 M FROM 10N TO 18N BETWEEN 165W AND 145W. ISOLATED MODERATE TSTMS FROM 08N TO 12N BETWEEN 160W AND 154W. .24 HOUR FORECAST TROUGH 12N165W 08N165W. WINDS 20 TO 25 KT FROM 17N TO 10N BETWEEN 169W AND 157W. SEAS 2.5 TO 3 M FROM 10N TO 18N BETWEEN 170W AND 150W. .48 HOUR FORECAST TROUGH 13N170W 08N172W. SEAS 2.5 TO 3 M FROM 10N TO 20N BETWEEN 174W AND 150W. WINDS EASED TO 20 KT OR LESS. .TROUGH 09N167E 03N161E MOVING W 10 KT. WINDS 20 TO 25 KT WITHIN 90 NM OF TROUGH. ISOLATED MODERATE TSTMS WITHIN 150 NM OF TROUGH. .24 HOUR FORECAST TROUGH MOVED W OF AREA. .WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA. .SEAS 2.5 TO 3 M FROM 10N TO 20N E OF 150W. .24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 12N TO 20N E OF 150W. .48 HOUR FORECAST SEAS 2.5 TO 4 M FROM 12N TO 25N E OF 145W. .SEAS 2.5 M OR LOWER REMAINDER OF FORECAST AREA. .ITCZ 10N140W 07N153W...AND 07N162W 05N172W 08N172E 07N170E. .ISOLATED MODERATE TSTMS N OF 25N BETWEEN 180W AND 167W. $$ .FORECASTER SHIGESATO. HONOLULU HI.