####018001558#### FZPN40 PHFO 012203 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2300 UTC WED MAY 01 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC MAY 01 2024. 24 HOUR FORECAST VALID 1800 UTC MAY 02 2024. 48 HOUR FORECAST VALID 1800 UTC MAY 03 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .WEAK TROUGH 30N161W 26N161W 22N164W NEARLY STATIONARY. .24 HOUR FORECAST TROUGH 30N161W 26N164W 22N166W. .48 HOUR FORECAST TROUGH 30N165W 22N172W. .WEAK TROUGH 23N175E 21N177E 17N177E MOVING W SLOWLY. NE TO E WINDS 20 TO 25 KT FROM 22N TO 25N BETWEEN 174E AND 180E. .24 HOUR FORECAST TROUGH DISSIPATED. WINDS DIMINISHED TO 20 KT OR LESS. .24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 04N TO 18N E OF 163W. .48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT E OF A LINE 07N175W 26N162W...AND FROM 08N TO 11N BETWEEN 177E AND 172E. .WINDS 20 KT OR LESS OVER REMAINDER OF AREA. .SEAS 8 FT OR LOWER OVER REMAINDER OF AREA. .ITCZ 06N140W 07N148W 06N161W 02N176W 03N175E 02N160E. ISOLATED MODERATE TSTMS WITHIN 120 NM OF ITCZ PRIMARILY W OF 167W. $$ .FORECASTER TSAMOUS. HONOLULU HI. ####018002625#### FZPS40 PHFO 012203 HSFSP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 2330 UTC WED MAY 01 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC MAY 01 2024. 24 HOUR FORECAST VALID 1800 UTC MAY 02 2024. 48 HOUR FORECAST VALID 1800 UTC MAY 03 2024. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 02S166E 06S171E 11S175W 10S158W MOVING S SLOWLY. NUMEROUS STRONG TSTMS FROM 16S TO 10S BETWEEN 177E AND 173W. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 270 NM OF TROUGH. .24 HOUR FORECAST TROUGH 03S160E 11S177E 11S171W TO 09S160W. .48 HOUR FORECAST NEW LOW NEAR 12S174W 1007 MB. TROUGH 05S160E 11S173E 11S178W TO LOW TO 16S170W. .TROUGH 25S171W 17S178E 14S169E 11S160E NEARLY STATIONARY. SCATTERED MODERATE TSTMS WITHIN 150 NM OF TROUGH. .24 HOUR FORECAST TROUGH LITTLE CHANGE. .48 HOUR FORECAST TROUGH 25S170W 19S177W 16S173E. .TROUGH 25S131W 22S135W 21S141W MOVING E SLOWLY. ISOLATED MODERATE TSTMS WITHIN 90 NM E OF TROUGH S OF 23S. .24 HOUR FORECAST TROUGH STRENGTHENED TO A FRONT 25S128W 20S134W 17S140W. .48 HOUR FORECAST FRONT 25S125W 21S129W 18S137W. .SE TO E WINDS 20 TO 25 KT S OF A LINE 25S132W 21S140W 20S160W...AND FROM 19S TO 13S BETWEEN 154W AND 168W...AND FROM 17S TO 12S W OF 170E. .24 HOUR FORECAST SE TO E WINDS 20 TO 25 KT S OF A LINE 25S129W 18S140W 09S151W 11S164W...AND FROM 18S TO 14S BETWEEN 164W AND 171W...AND S OF A LINE 21S175E 11S166E 10S160E. .48 HOUR FORECAST SE TO E WINDS 20 TO 25 KT S OF A LINE 22S175W 15S174E 11S160E... AND FROM 22S TO 16S BETWEEN 134W AND 156W. .WINDS 20 KT OR LESS OVER REMAINDER OF AREA. .SEAS 8 TO 11 FT S OF 21S BETWEEN 138W AND 157W. SEAS 8 TO 9 FT FROM 19S TO 15S BETWEEN 160W AND 167W. .24 HOUR FORECAST SEAS 12 TO 13 FT FROM 19S TO 23S BETWEEN 139W AND 150W. SEAS 8 TO 11 FT ELSEWHERE S OF A LINE 23S120W 16S148W 11S152W 14S164W. SEAS 8 TO 9 FT FROM 17S TO 14S BETWEEN 164W AND 170W. .48 HOUR FORECAST SEAS 8 TO 11 FT S OF 16S E OF 160W. SEAS 8 TO 10 FT S OF 16S W OF 180E. .SEAS 8 FT OR LOWER OVER REMAINDER OF AREA. .SCATTERED MODERATE TSTMS FROM 19S TO 14S BETWEEN 163W AND 169W. $$ .FORECASTER TSAMOUS. HONOLULU HI.