Superseded by next issuance in 6 hours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.
North Pacific Equator to 30n between 140w and 160e
Synopsis valid 0600 UTC Jan 17 2020. 24 hour forecast valid 0600 UTC Jan 18 2020. 48 hour forecast valid 0600 UTC Jan 19 2020.
...Gale Warning... .48 hour forecast new cold front from 30n161e to 26n160e. S to SW winds 25 to 35 kt within 300 nm E of cold front.
.Synopsis and forecast.
.cold front from 30n153w to 23n162w to 19n179w moving E 10 kt. N to NE winds 25 to 30 kt N of cold front. .24 hour forecast weakening front from 30n147w to 25n150w to 18n158w. NE winds 20 to 25 kt within 300 nm W of trough. .48 hour forecast front weakened to trough from 30n142w to 24n148w to 22n151w. N to NE winds 20 to 25 within 240 nm W of trough N of 27n...and between trough and 161w S of 27n.
.Trough from 05n160e to 01n179e nearly stationary. Isolated moderate tstms within 120 nm of trough. .24 hour forecast trough from 04n160e to 01n177e. .48 hour forecast trough from 04n160e to 01n176e.
.Trough from 23n156w to 18n157w moving E slowly. .24 hour forecast trough dissipated.
.Trough from 15n164w to 10n171w to 04n176w moving W slowly. Isolated moderate tstms within 120 nm E of trough...and S of 04n between 171w and 179e. .24 hour forecast trough dissipated.
.trough from 16n167e to 10n168e moving WSW slowly. Isolated moderate tstms from 07n to 12n between 172e and 168e. .24 hour forecast trough dissipated.
.trough from 29n164e to 26n160e moving ENE 15 kt. .24 hour forecast trough dissipated.
.NE to E winds 20 to 25 kt from 12n to 24n between 179w and 170e. .24 hour forecast E winds 20 to 25 kt elsewhere from 10n to 24n between 160w and 180e. .48 hour forecast NE to E winds 20 to 25 kt from 13n to 22n between 153w and 161w...and from 10n to 22n between 161w and 177e.
.24 hour forecast new trough from 27n142w to 19n144w. Se winds 20 to 25 kt E of trough N of 23n. .48 hour forecast trough moved E of area. N winds 20 to 25 kt from 23n to 28n E of 143w.
.Ridge from 29n140w to 23n154w nearly stationary...And gradually eroding from the W.
.Otherwise...Winds 20 kt or less over remainder of forecast area.
.Seas 12 to 15 ft within 240 nm of a line from 30n162w to 26n168w to 23n173e. Seas 8 to 12 ft elsewhere N of a line from 30n154w to 24n160w to 18n167w to 18n170e. Seas 8 to 10 ft S of 18n E of 170e...and N of 12n W of 170e. .24 hour forecast seas 12 to 13 ft from 18n to 22n between 165w and 173e. Seas 8 to 12 ft elsewhere N of a line from 30n148w to 16n161w to 16n170e. Seas 8 to 11 ft S of 16n between 160w and 170e. Seas 8 to 10 ft N of 12n W of 170e. Seas 8 to 9 ft S of 06n E of 160w. .48 hour forecast seas 8 to 12 ft N of a line from 22n140w to 06n170w to 06n173e to 10n160e. Seas 8 to 9 ft S of 06n between 168w and 180e.
.Otherwise...Seas 8 ft or lower over remainder of forecast area.
.ITCZ from 08n140w to 08n162w. Isolated moderate tstms within 480 nm N of ITCZ.
.Forecaster Houston. Honolulu HI.