...SMALL CRAFT ADVISORY FOR ROUGH BAR IN EFFECT THROUGH TUESDAY AFTERNOON...
229 PM PST Sun Dec 16 2018
.Synopsis for the Central California Coast and Bays Including
the Monterey Bay...Greater Farallones...and Cordell Bank
National Marine Sanctuaries...
Strong and gusty southerly winds associated with a frontal system
moving through the coastal waters will result in steep fresh
swell and hazardous sea conditions through this evening. Winds
will then diminish in wake of the frontal passage tonight. A very
large, long period WNW swell will continue to move into the
coastal waters, with significantly building seas by this evening
through Monday morning. The swell will taper off late Monday into
Tuesday, however, a different large northwest swell train builds
Wednesday into Thursday.
SW winds 10 to 20 kt with gusts up to 30 kt...becoming NW 5 to 10 kt after midnight. Wind waves 3 to 4 ft this evening... Becoming 2 ft or less. W swell 15 to 20 ft at 21 seconds. Showers and a slight chance of thunderstorms this evening, then a chance of showers after midnight.
SW winds around 5 kt. Wind waves 2 ft or less. W swell 16 to 21 ft at 21 seconds.
S winds around 5 kt. Wind waves 2 ft or less. W swell 13 to 18 ft at 18 seconds.
S winds 5 to 10 kt. Wind waves 2 ft or less. W swell 10 to 13 ft at 18 seconds. A slight chance of showers.
N winds 5 to 10 kt. Wind waves 2 ft or less. W swell 10 to 13 ft at 15 seconds.
N winds 10 to 15 kt. Wind waves 2 ft or less. W swell 9 to 13 ft.
NE winds 5 to 15 kt. Wind waves 2 ft or less. W swell 12 to 16 ft.
W winds up to 10 kt. Wind waves 2 ft or less. W swell 8 to 11 ft.
NW winds 5 to 15 kt. Wind waves 2 ft or less. W swell 8 to 10 ft. winds and wind waves higher in and near thunderstorms. .....san francisco bar/fourfathom bank forecast..... in the deep water channel...combined seas 9 to 11 ft with a dominant period of 13 seconds, increasing to 15 to 18 ft with a period of 21 seconds tonight. across the bar...combined seas 11 to 13 ft with locally larger breaking waves. A dominant period of 13 seconds, increasing to 17 to 20 ft with a period of 21 seconds tonight. Maximum ebb current of 1.5 knots at 11:37 pm sunday and 2.3 knots at 12:25 pm monday.