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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12NM SSE San Francisco CA

Marine Point Forecast

[NOTICE]
  • Tonight

    Slight Chc Rain

    Light Wind
    < 1ft
  • Wednesday

    Heavy Rain

    SSE 18kt
    < 1ft
  • Wednesday
    Night

    Heavy Rain

    SSE 25ktWinds Decreasing
    < 1ft

    Small Craft Advisory
    Small Craft Advisory

  • Thursday

    Chance Showers

    Light Wind
    < 1ft
  • Thursday
    Night

    Heavy Rain

    SSW 10kt
    < 1ft
  • Friday

    Heavy Rain

    SE 17kt
    < 1ft
  • Friday
    Night

    Showers Likely

    W 14kt
    < 1ft
  • Saturday

    Slight Chc Showers

    WSW 10kt
    < 1ft
  • Saturday
    Night

    Chance Showers

    SSE 14kt
    < 1ft

Associated Zone Forecast which includes this point

Last Update: 1:59 pm PST Jan 17, 2017
Forecast Valid: 6pm PST Jan 17, 2017-6pm PST Jan 24, 2017

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON

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 OVER 25 FEET FRIDAY AND SATURDAY.

Tonight
Variable winds 5 kt or less. A slight chance of rain after 4am. . Wind waves 1 ft or less.
Wednesday
SSE wind 8 to 18 kt, with gusts as high as 24 kt. Rain, mainly after 10am. The rain could be heavy at times. . Wind waves 1 ft or less.
Wednesday Night
SSE wind 20 to 25 kt becoming W 11 to 16 kt after midnight. Winds could gust as high as 34 kt. Rain, mainly before 10pm. The rain could be heavy at times. . Wind waves 1 ft or less.
Thursday
Variable winds 5 kt or less. A chance of showers, mainly after 4pm. . Wind waves 1 ft or less.
Thursday Night
SSW wind around 10 kt. Rain, mainly after 10pm. The rain could be heavy at times. . Wind waves 1 ft or less.
Friday
SE wind 12 to 17 kt becoming W in the morning. Winds could gust as high as 23 kt. Rain. The rain could be heavy at times. . Wind waves 1 ft or less.
Friday Night
W wind 11 to 14 kt. Showers likely. . Wind waves 1 ft or less.
Saturday
WSW wind around 10 kt. A slight chance of showers. . Wind waves 1 ft or less.
Saturday Night
SSE wind 11 to 14 kt. A chance of showers. . Wind waves 1 ft or less.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 37.59°N 122.3°W
Last Update: 1:59 pm PST Jan 17, 2017
Forecast Valid: 6pm PST Jan 17, 2017-6pm PST Jan 24, 2017
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