FZPN40 PHFO 231540 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1700 UTC SUN AUG 23 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 180W SYNOPSIS VALID 1200 UTC AUG 23 2026. 24 HOUR FORECAST VALID 1200 UTC AUG 24 2026. 48 HOUR FORECAST VALID 1200 UTC AUG 25 2026. .WARNINGS. ...TROPICAL STORM WARNING... .TROPICAL STORM LALA N OF AREA NEAR 32.1N 173.9W 988 MB AT 1500 UTC AUG 23 MOVING WNW OR 300 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM N SEMICIRCLE...130 NM SE QUADRANT AND 100 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 330 NM N SEMICIRCLE...180 NM SE QUADRANT AND 270 NM SW QUADRANT. WINDS 20 TO 30 KT AND SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N168W 27N173W 30N178W. ISOLATED MODERATE TSTMS N OF 29N BETWEEN 171W AND 175W. .24 HOUR FORECAST TROPICAL STORM LALA N OF AREA NEAR 33.1N 174.9W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS AND SEAS 4 M OR GREATER MOVED N OF FORECAST AREA. WINDS 20 TO 30 KT AND SEAS 2.5 TO 4 M N OF 28N BETWEEN 172W AND 178W. .48 HOUR FORECAST TROPICAL STORM LALA N OF AREA NEAR 34.3N 176.4W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS AND SEAS 4 M OR GREATER MOVED N OF FORECAST AREA. WINDS 20 TO 30 KT AND SEAS 2.5 TO 4 M ALSO MOVED N OF FORECAST AREA. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. ...TROPICAL STORM WARNING... .TROPICAL STORM MOKE NEAR 15.2N 155.0W 1002 MB AT 1500 UTC AUG 23 MOVING W OR 275 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 150 NM N SEMICIRCLE...0 NM SE QUADRANT AND 90 NM SW QUADRANT. WINDS 20 TO 30 KT AND SEAS 2.5 TO 4 M ELSEWHERE FROM 13N TO 21N BETWEEN 146W AND 159W. SCATTERED MODERATE TSTMS WITHIN 220 NM N SEMICIRCLE. .24 HOUR FORECAST TROPICAL STORM MOKE NEAR 15.6N 159.6W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS 4 M OR GREATER DISSIPATED. WINDS 20 TO 30 KT ELSEWHERE AND SEAS 2.5 M TO 4 M FROM 13N TO 21N BETWEEN 152W AND 163W. .48 HOUR FORECAST TROPICAL STORM MOKE NEAR 16.7N 164.8W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. WINDS 20 TO 30 KT ELSEWHERE FROM 16N TO 21N BETWEEN 155N AND 166N. SEAS 4 M OR GREATER DISSIPATED. SEAS 2.5 M TO 4 M DISSIPATED. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. SEE THE LATEST BULLETINS ON LALA AND MOKE ISSUED BY NHC UNDER WMO HEADERS...WTP22 PHFO AND WTP23 PHFO. .SYNOPSIS AND FORECAST .TROUGH 29N148W 25N149W MOVING W SLOWLY. .24 HOUR FORECAST TROUGH 30N149W 26N152W. .48 HOUR FORECAST TROUGH 30N150W 25N154W. .LOW 1010 MB 04N170W MOVING SW 15 KT. .24 HOUR FORECAST LOW 1010 MB 05N175W. .48 HOUR FORECAST LOW 1010 MB 06N174W. .HIGH 06N180W 1011 MB MOVING SW SLOWLY. .24 HOUR FORECAST HIGH MOVED W OF AREA. .48 HOUR FORECAST HIGH MOVED W OF AREA. .WINDS 20 KT OR LESS OVER THE REMAINDER OF FORECAST AREA. .SEAS 2.5 M OR LESS OVER THE REMAINDER OF FORECAST AREA. .MONSOON TROUGH 06N140W 11N151W...AND 11N153W 08N163W 04N171W... AND 17N178W 16N180W. SCATTERED MODERATE TSTMS S OF TROUGH TO EQUATOR W OF 163W. SCATTERED MODERATE TSTMS S OF09N W OF 170W. ISOLATED MODERATE TSTMS W OF 171W BETWEEN 16N AND 22N. $$ .FORECASTER VAUGHAN. HONOLULU HI.