####018002030#### FZPN40 PHFO 210315 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0500 UTC SUN APR 21 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. SECURITE NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E SYNOPSIS VALID 0000 UTC APR 21 2024. 24 HOUR FORECAST VALID 0000 UTC APR 22 2024. 48 HOUR FORECAST VALID 0000 UTC APR 23 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .FRONT 30N167E 24N160E MOVING E 10 KT. .24 HOUR FORECAST FRONT 30N172E 23N160E. .48 HOUR FORECAST FRONT 30N176E 25N167E 24N160E. .TROUGH 26N140W 23N145W 17N150W MOVING W SLOWLY. .24 HOUR FORECAST TROUGH 28N140W 17N154W. .48 HOUR FORECAST TROUGH 26N140W 22N148W. .NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N E OF 180W. .24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 16N BETWEEN 180W AND 153W. .48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 07N TO 17N BETWEEN 180W AND 152W. .SEAS 8 TO 9 FT FROM 04N TO 15N E OF 176E...AND N OF 29N W OF 162E. .24 HOUR FORECAST SEAS 12 TO 13 FT N OF 29N W OF 165E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE 24N160E 30N170E. SEAS 8 TO 10 FT FROM 04N TO 16N E OF 172E. .48 HOUR FORECAST SEAS 8 TO 11 FT N OF A LINE 30N165E 20N164E 30N179E...AND FROM 04N TO 18N E OF 175E. .WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF AREA. .ITCZ 04N140W 02N156W 04N164W 02N171W 03N177W 02N177E. SCATTERED MODERATE TSTMS WITHIN 300 NM N AND 150 NM S OF ITCZ W OF 160W...AND WITHIN 210 NM N AND 120 NM S OF ITCZ E OF 151W. ISOLATED MODERATE TSTMS WITHIN 300 NM N OF ITCZ BETWEEN 160W AND 151W. .ISOLATED TO SCATTERED MODERATE TSTMS S OF 12N W OF 177E. $$ .FORECASTER JELSEMA. HONOLULU HI. ####018003934#### FZPS40 PHFO 210316 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 0530 UTC SUN APR 21 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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. SECURITE SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E SYNOPSIS VALID 0000 UTC APR 21 2024. 24 HOUR FORECAST VALID 0000 UTC APR 22 2024. 48 HOUR FORECAST VALID 0000 UTC APR 23 2024. .WARNINGS. ...GALE WARNING... .LOW NEAR 21S160E 1007 MB MOVING E SLOWLY. TROUGH FROM LOW TO 22S161E 21S163E 22S167E MOVING E SLOWLY. E TO SE WINDS 25 TO 35 KT FROM 22S TO 24S W OF 162E. E TO SE WINDS 20 TO 25 KT ELSEWHERE S OF LINE 21S160E 22S167E 25S167E. ISOLATED MODERATE TSTMS WITHIN 120 NM N AND 60 NM S OF TROUGH. .24 HOUR FORECAST LOW NEAR 19S163E 1008 MB. SECOND LOW NEAR 23S175E 1006 MB. NEW THIRD LOW NEAR 21S169E 1007 MB. TROUGH FROM 17S160E TO LOW TO NEW THIRD LOW TO SECOND LOW TO 25S180W. WINDS 20 TO 30 KT S OF 20S W OF 178E. .48 HOUR FORECAST LOW NEAR 17S162E 1010 MB. SECOND LOW NEAR 25S176W 1008 MB. THIRD LOW NEAR 21S170W 1009 MB. TROUGH FROM 16S160E TO LOW TO THIRD LOW TO 23S180W TO SECOND LOW. WINDS 20 TO 30 KT S OF 20S W OF 174W. ...GALE WARNING... .TROUGH 16S120W 14S123W 13S127W NEARLY STATIONARY. E TO SE WINDS 20 TO 30 KT IN AREA BOUNDED BY 25S136W 19S140W 19S130W 21S120W 25S120W 25S136W. .18 HOUR FORECAST TROUGH 21S120W 14S124W. SE WINDS 30 TO 35 KT S OF 22S E OF 122W. WINDS 20 TO 30 KT ELSEWHERE S OF LINE 25S147W 20S144W 16S130W 21S120W. .24 HOUR FORECAST TROUGH 21S120W 13S125W. SE WINDS 30 TO 35 KT S OF 22S E OF 124W. WINDS 20 TO 30 KT ELSEWHERE S OF LINE 25S146W 16S139W 16S133W 21S120W. .48 HOUR FORECAST TROUGH 22S120W 20S126W 12S129W. WINDS 20 TO 30 KT S OF LINE 25S144W 22S140W 19S127W 22S120W. .SYNOPSIS AND FORECAST. .TROUGH 23S171E 22S168E 18S164E MOVING SW SLOWLY. ISOLATED TO SCATTERED MODERATE TSTMS IN AREA BOUNDED BY 19S160E 11S160E 14S179E 25S180W 19S160E. .24 HOUR FORECAST TROUGH MERGED WITH TROUGH MENTIONED IN FIRST GALE WARNING ABOVE. .TROUGH 12S180W 10S176E 10S172E 05S169E MOVING S SLOWLY. SCATTERED MODERATE TSTMS WITHIN 300 NM OF TROUGH. ISOLATED MODERATE TSTMS ELSEWHERE S OF LINE 06S160E 14S170E 15S167W 03S164W 02S180W 00S180W. .24 HOUR FORECAST TROUGH 14S179W 12S173E. .48 HOUR FORECAST TROUGH DISSIPATED. .TROUGH 25S152W 17S158W NEARLY STATIONARY. SCATTERED MODERATE TO LOCALLY STRONG TSTMS WITHIN 180 NM E OF TROUGH S OF 19S. ISOLATED TSTMS WITHIN 210 NM W OF TROUGH S OF 21S. .24 HOUR FORECAST TROUGH 25S148W 16S154W. .48 HOUR FORECAST TROUGH 25S149W 16S154W. .TROUGH 16S150W 14S154W MOVING SW SLOWLY. SCATTERED MODERATE TSTMS FROM 10S TO 19S BETWEEN 154W AND 140W. .24 HOUR FORECAST TROUGH 18S150W 10S160W. .48 HOUR FORECAST TROUGH MERGED WITH THROUGH MENTIONED DIRECTLY ABOVE. .SEAS 12 TO 13 FT S OF 22S E OF 122W. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 25S170W 21S165W 21S145W 15S135W 17S120W. SEAS 8 TO 11 FT S OF 22S W OF 162E. .24 HOUR FORECAST SEAS 12 TO 17 FT S OF 20S E OF 134W. SEAS 12 TO 14 FT S OF 22S W OF 163E. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 21S160E 23S166E 20S175E 23S177E 25S175E...AND S OF LINE 25S164W 13S135W 18S120W. .48 HOUR FORECAST SEAS 12 TO 16 FT S OF LINE 25S135W 18S130W 22S120W. SEAS 12 TO 15 FT S OF 23S W OF 166E. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 20S160E 22S165E 22S180W 25S178W...AND S OF LINE 25S150W 10S135W 18S120W. .WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF AREA. .ISOLATED MODERATE TSTMS S OF 24S E OF 123W. $$ .FORECASTER JELSEMA. HONOLULU HI.