Superseded by next issuance in 6 hours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.
E Pacific from the Equator to 30n E of 140w and 03.4s to the Equator E of 120w
Synopsis valid 1800 UTC sun Dec 08. 24 hour forecast valid 1800 UTC Mon Dec 09. 48 hour forecast valid 1800 UTC Tue Dec 10.
.Synopsis and forecast.
.within 30n116w to 21n113w to 10n120w to 05n140w to 30n140w to 30n116w winds 20 kt or less. Seas 8 to 10 ft in NW to N swell. .24 hour forecast within 17n110w to 08n110w to 00n120w to 00n140w to 18n140w to 17n110w winds 20 kt or less. Seas 8 to 9 ft in NW to N swell. .48 hour forecast from 10n to 15n between 110w and 140w winds 20 kt or less. Seas 8 ft in NW to N swell.
.Within 13n94w to 12n96w to 13n99w to 16n96w to 16n95w to 13n94w...including the Gulf of Tehuantepec...N to NE winds 20 to 30 kt. Seas 8 to 12 ft. .06 hour forecast within 15n95w to 15n96w to 16n96w to 16n95w to 16n94w to 15n95w...including the Gulf of Tehuantepec...N winds 20 to 25 kt. Seas to 8 ft. Within 10n98w to 08n99w to 09n100w to 12n99w to 12n98w to 10n98w winds 20 kt or less. Seas 8 to 9 ft in SW swell. .24 hour forecast within 09n100w to 08n102w to 09n105w to 10n105w to 10n102w to 09n100w winds 20 kt or less. Seas 8 to 10 ft in S to SW swell. .30 hour forecast conditions merged. Winds 20 kt or less. Seas less than 8 ft.
.Within 09n87w to 09n89w to 10n89w to 11n87w to 11n86w to 09n87w...including the Gulf of papagayo... NE to E winds 20 to 25 kt. Seas 8 to 9 ft. .24 hour forecast conditions improve. Winds 20 kt or less. Seas less than 8 ft.
.30 hour forecast cold front approach 30n140w. Within 30n139w to 29n139w to 29n140w to 30n140w to 30n139w winds 20 kt or less. Seas 8 ft in NW swell. .48 hour forecast within 29n137w to 27n140w to 30n140w to 30n136w to 29n137w winds 20 kt or less. Seas 8 to 10 ft in NW swell.
.Remainder of area winds 20 kt or less. Seas less than 8 ft.
Convection valid at 2100 UTC sun Dec 8...
.Scattered moderate within 30 nm either side of a line from 28n134w to 25n138w.
.Intertropical convergence zone/monsoon trough... Monsoon trough from low pres 1011 mb near 09n75w to 06n80w to 07n98w. The ITCZ continues from 07n98w to 08n125w to beyond 06n140w. Scattered moderate from 05n to 07n between 82w and 85w. Scattered moderate to isolated strong from 05n to 11n between 122w and 136w.
$$ .Forecaster Formosa. National Hurricane Center.