High Seas Forecast
Issued by NWS
Issued by NWS
496 FZPN40 PHFO 261529 HSFNP HIGH SEAS FORECAST NATIONAL WEATHER SERVICE HONOLULU HI 1700 UTC SAT SEP 26 2026 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 SEP 26 2026. 24 HOUR FORECAST VALID 1200 UTC SEP 27 2026. 48 HOUR FORECAST VALID 1200 UTC SEP 28 2026. .WARNINGS. ...HURRICANE WARNING... .HURRICANE NOLO NEAR 16.9N 155.4W 975 MB AT 1500 UTC SEP 26 AND QUASI STATIONARY. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM N SEMICIRCLE AND 100 NM S SEMICIRCLE. WINDS 20 TO 30 KT ELSEWHERE FROM 14N TO 20N BETWEEN 150W AND 160W. SEAS 4 M OR GREATER WITHIN 180 NM OF CENTER EXCEPT 240 NM NE QUADRANT WITH SEAS TO 8 M. SEAS 2.5 TO 3.5 M ELSEWHERE FROM 11N TO 27N BETWEEN 150W AND 166W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 100 NM SW SEMICIRCLE AND 40 NM NE SEMICIRCLE. .24 HOUR FORECAST HURRICANE NOLO NEAR 16.8N 157.8W. MAXIMUM SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE QUADRANT...80 NM SE QUADRANT...70 NM SW QUADRANT AND 100 NM NW QUADRANT. WINDS 20 TO 30 KT ELSEWHERE FROM 15N TO 21N BETWEEN 149W AND 164W. SEAS 4 M OR GREATER FROM 16N TO 21N BETWEEN 155W AND 161W WITH SEAS TO 10 M. SEAS 2.5 TO 3.5 M ELSEWHERE FROM 12N TO 30N BETWEEN 150W AND 170W. .48 HOUR FORECAST HURRICANE NOLO NEAR 17.7N 161.5W. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NW AND SE QUADRANTS...140 NM NE QUADRANT AND 70 NM SW QUADRANT. WINDS 20 TO 30 KT ELSEWHERE FROM 16N TO 22N BETWEEN 157W AND 164W. SEAS 4 M OR GREATER FROM 15N TO 20N BETWEEN 158W AND 164W WITH SEAS TO 11 M. SEAS 2.5 TO 3.5 M ELSEWHERE FROM 13N TO 30N BETWEEN 154W AND 174W. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .SYNOPSIS AND FORECAST. .LOW 1011 MB 09N177W NEARLY STATIONARY. .24 HOUR FORECAST LOW 1011 MB 08N176W. .48 HOUR FORECAST LOW 1011 MB 08N175W. .TROUGH 18N177W TO 23N176W TO 27N173W MOVING W 10 KT. .24 HOUR FORECAST TROUGH MOVED W OF AREA. .WINDS 20 TO 25 KT FROM 20N TO 28N BETWEEN 143W AND 164W. SEAS 2.5 TO 3 M FROM 14N TO 25N E OF 150W. .24 HOUR FORECAST WINDS 20 TO 30 KT FROM 21N TO 27N BETWEEN 146W AND 167W. SEAS 2.5 TO 3 M FROM 14N TO 26N E OF 150W. .48 HOUR FORECAST WINDS 20 TO 25 KT FROM 22N TO 26N BETWEEN 153W AND 172W. SEAS 2.5 TO 3 M FROM 15N TO 29N E OF 154W. .24 HOUR FORECAST NEW LOW 1008 MB NEAR 12N140W. WINDS 20 TO 25 KT FROM 07N TO 10N E OF 142W. SEAS 2.5 TO 3 M FROM 08N TO 12N E OF 146W. .48 HOUR FORECAST LOW 1007 MB NEAR 15N141W. WINDS 20 TO 25 KT FROM 07N TO 11N E OF 145W AND FROM 15N TO 21N E OF 145W. SEAS 2.5 TO 3 M FROM 07N TO 13N E OF 145W. .WINDS 20 KT OR LESS AND SEAS BELOW 2.5 M OVER REMAINDER OF FORECAST AREA. .MONSOON TROUGH 13N140W TO 16N150W...AND 14N166W TO LOW MENTIONED ABOVE TO 10N180W. SCATTERED MODERATE TO ISOLATED STRONG TSTMS NEAR TROUGH FROM 10N TO 15N E OF 146W...AND S OF TROUGH FROM 00N TO 08N E OF 145W. SCATTERED MODERATE TSTMS S OF TROUGH FROM 00N TO 11N BETWEEN 160W AND 178W. $$ .FORECASTER CHAN. HONOLULU HI.