Heavy rain, mountain snow and strong winds in the western U.S. this week

The western U.S. will experience active weather yet again this week as significant Pacific moisture brings rain and mountain snow to the region. This heavy rain will bring flood concerns to parts of WA, OR and CA. Very heavy snow is possible in the Sierra, Cascades, Great Basin and parts of the northern Rockies.
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Last Update: 353 AM PST WED JAN 18 2017

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36NM SSE Point Arena CA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING...

Synopsis: GREATER FARALLONES...AND CORDELL BANK NATIONAL MARINE SANCTUARIES...

SOUTHERLY WINDS WILL INCREASE BY WEDNESDAY AHEAD OF A FRONTAL SYSTEM. WINDS WILL DECREASE LATE WEDNESDAY NIGHT AS THE LOW LIFTS NORTHEAST BUT WILL INCREASE AGAIN BY FRIDAY AS ANOTHER STORM APPROACHES. VERY LARGE WEST SWELLS WILL ARRIVE LATER THIS WEEK WITH SWELLS BUILDING AS HIGH AS 26 FEET FRIDAY AND SATURDAY.

Today
SE winds 25 to 35 kt. Combined seas 8 to 12 ft dominant period 15 seconds. Rain likely in the morning...then rain and slight chance of thunderstorms in the afternoon.
Tonight
S winds 25 to 35 kt with occasional gusts to 50 kt... Becoming W 5 to 15 kt after midnight. Combined seas 3 to 14 ft dominant period 14 seconds. Rain and slight chance of thunderstorms in the evening...then chance of rain after midnight.
Thu
W winds 10 kt...becoming SE in the afternoon. Wind waves 3 to 4 ft. W swell 11 to 14 ft at 17 seconds. Chance of showers.
Thu Night
SW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 14 to 16 ft at 17 seconds. Chance of showers in the evening... Then rain after midnight.
Fri
W winds 15 to 25 kt with occasional gusts to 40 kt. Wind waves 4 to 6 ft. W swell 15 to 18 ft at 17 seconds...increasing to 21 to 24 ft at 17 seconds. Rain.
Sat
SW winds 20 to 30 kt. Wind waves 4 to 6 ft. W swell 23 to 26 ft...decreasing to 16 to 19 ft. Chance of showers.
Sun
W winds 30 to 40 kt. Combined seas 13 to 16 ft. Rain likely.
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ABOUT THIS FORECAST

Last Update: 353 AM PST WED JAN 18 2017
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