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High Seas Forecast
Issued by NWS
Issued by NWS
857 FZPS40 PHFO 162241 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2330 UTC TUE JUL 16 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC JUL 16 2024. 24 HOUR FORECAST VALID 1800 UTC JUL 17 2024. 48 HOUR FORECAST VALID 1800 UTC JUL 18 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .FRONT 25S137W 20S144W 15S157W MOVING E 10 KT. SEE WINDS AND SEAS BELOW. ISOLATED MODERATE TSTMS WITHIN 120 NM E OF FRONT S OF 20S. .24 HOUR FORECAST FRONT 25S134W 20S141W 15S157W. SEE WINDS AND SEAS BELOW. .48 HOUR FORECAST FRONT 25S132W 20S140W 15S157W. SEE WINDS AND SEAS BELOW. .FRONT 25S177W 18S174E THENCE TROUGH TO 14S168E 09S160E. FRONT MOVING E 15 KT NEAR 25S BECOMING NEARLY STATIONARY N OF 20S. TROUGH NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 120 NM OF TROUGH N OF 12S. .24 HOUR FORECAST FRONT 25S171W 18S174E THENCE TROUGH TO 14S168E 10S160E. .48 HOUR FORECAST FRONT WEAKENED TO TROUGH 25S150W 21S161W. .24 HOUR FORECAST NEW TROUGH 25S169E 20S160E. .48 HOUR FORECAST NEW LOW 25S170E 1007 MB. TROUGH FROM LOW TO 17S165E. SEE WINDS AND SEAS BELOW. .WINDS 20 TO 30 KT S OF LINE 25S151W 20S143W 21S132W 25S128W. WINDS 20 TO 25 KT S OF 24S W OF 170E...AND E OF 147W BETWEEN 04S AND 19S. .24 HOUR FORECAST WINDS 20 TO 25 KT S OF 23S BETWEEN 136W AND 125W. WINDS 20 TO 25 KT FROM 01S TO 10S BETWEEN 151W AND 165W. .48 HOUR FORECAST WINDS 20 TO 25 KT S OF 21S BETWEEN 140W AND 166W. WINDS 20 TO 30 KT S OF LINE 12S160E 20S169E 25S179E. WINDS 20 TO 25 KT S OF 20S BETWEEN 125W AND 137W. .WINDS 20 KT OR LESS REMAINDER FORECAST AREA. .SEAS 8 TO 12 FT S AND E OF LINE 25S162W 20S153W 20S135W 03S131W 03S120W. SEAS 8 TO 9 FT N OF LINE 00S176E 10S177W 00S170W...AND S OF 24S W OF 171E. .24 HOUR FORECAST SEAS 8 TO 11 FT S OF LINE 25S156W 20S140W 25S129W. SEAS 8 TO 10 FT E OF LINE 23S120W 10S135W 05S135W 04S120W. .48 HOUR FORECAST SEAS 8 TO 11 FT S AND E OF LINE 25S164W 22S158W 20S141W 15S123W 04S120W. SEAS 8 TO 9 FT S OF 19S W OF 175E. .SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. .SCATTERED MODERATE TSTMS N OF 08N AND W OF 175E. ISOLATED MODERATE TSTMS FROM 01S TO 05S BETWEEN 150W AND 156W. $$ .FORECASTER POWELL. HONOLULU HI.