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High Seas Forecast
Issued by NWS
Issued by NWS
248 FZPS40 PHFO 190304 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0530 UTC FRI JUL 19 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE HIGHER THAN 10-MINUTE AVERAGE WINDS. THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL JULY 29 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND GRAPHICAL PRODUCTS FOR THE OFFSHORE AND HIGH SEAS AREAS ONLY. TO LEARN MORE PLEASE VISIT HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP SECURITE SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E SYNOPSIS VALID 0000 UTC JUL 19 2024. 24 HOUR FORECAST VALID 0000 UTC JUL 20 2024. 48 HOUR FORECAST VALID 0000 UTC JUL 21 2024. .WARNINGS. ...GALE WARNING... .LOW JUST S OF AREA 26S172E 1003 MB MOVING SE 15 KT. FRONT FROM LOW TO 20S170E 11S160E MOVING E 15 KT. WINDS 30 TO 35 KT S OF LINE 25S176E 21S170E 25S167E. WINDS 20 TO 30 KT ELSEWHERE S OF 20S W OF 180E. WINDS 20 TO 25 KT W OF FRONT N OF 10S. ISOLATED MODERATE TSTMS WITHIN 90 NM OF FRONT. .12 HOUR FORECAST LOW MOVED WELL S OF AREA. FRONT FROM 25S179E 20S176E 15S170E 09S160E. WINDS 30 TO 35 KT S OF 23S BETWEEN 179W AND 177E. WINDS 20 TO 30 KT ELSEWHERE S OF 20S BETWEEN 175W AND 165E. WINDS 20 TO 25 KT W OF FRONT N OF 15S. .24 HOUR FORECAST FRONT 25S175W 20S180E 16S175E THENCE TROUGH 10S160E. WINDS 20 TO 30 KT S OF 23S BETWEEN 172W AND 175E. .48 HOUR FORECAST FRONT 25S170W 21S175W THENCE TROUGH 17S170E 11S160E. WINDS EASED TO 20 KT OR LESS. ...GALE WARNING... .FRONT 25S142W 22150W 20S160W MOVING ENE 35 KT. WINDS 20 TO 30 KT S OF LINE 25S130W 19S140W 18S150W 25S163W. .12 HOUR FORECAST FRONT 25S136W 23S138W 19S149W 17S155W. WINDS 30 TO 35 KT WITHIN 120 NM E OF FRONT S OF 23S. WINDS 20 TO 30 KT ELSEWHERE S OF LINE 25S127W 19S140W. WINDS 20 TO 25 KT FROM 18S TO 22S BETWEEN 140W AND 148W. .24 HOUR FORECAST FRONT 25S133W 19S140W 15S150W. WINDS 20 TO 30 KT WITHIN 420 NM E OF FRONT S OF 19S. .48 HOUR FORECAST FRONT 25S126W 20S132W 13S145W. WINDS 20 TO 30 KT WITHIN 360 NM E OF FRONT S OF 20S. .SYNOPSIS AND FORECAST. .FRONT 25S136W 22S140W 16S152W NEARLY STATIONARY. SEE WINDS IN SECOND GALE WARNING ABOVE. ISOLATED MODERATE TSTMS WITHIN 90 NM OF FRONT S OF 22S. .12 HOUR FORECAST FRONT MERGED WITH SECOND GALE WARNING ABOVE. SEE WINDS IN SECOND GALE WARNING ABOVE. .TROUGH 08S165E 04S160E NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 90 NM OF TROUGH. .24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED IN FIRST GALE WARNING ABOVE. .24 HOUR FORECAST WINDS 20 TO 25 KT S OF 22S BETWEEN 145W AND 160W. .48 HOUR FORECAST WINDS 20 TO 25 KT IN AREA BOUNDED BY 12S157W 20S131W 25S140W 21S160W 12S157W...AND FROM 05S TO 11S BETWEEN 165W AND 175E. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .SEAS 12 TO 14 FT S OF 23S BETWEEN 173E AND 167E. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 25S177E 14S160E...AND S OF LINE 15S120W 20S135W 20S150W 25S165W. .24 HOUR FORECAST SEAS 12 TO 14 FT S OF 24S BETWEEN 179E AND 175E. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 25S176W 17S172E 25S164E...AND S OF LINE 20S130W 17S145W 25S160W. SEAS 8 TO 10 FT S OF 09S E OF 130W. .48 HOUR FORECAST SEAS 12 TO 14 FT S OF 23S BETWEEN 130W AND 140W. SEAS 8 TO 12 FT ELSEWHERE S OF 17S E OF 160W. SEAS 8 TO 11 FT S OF LINE 25S171W 19S180E 25S172E. SEAS 8 TO 9 FT FROM 05S TO 18S E OF 126W. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. .ISOLATED MODERATE TO STRONG TSTMS N OF 06S BETWEEN 175W AND 177E. $$ .FORECASTER WROE. HONOLULU HI.