Powerful Storm to Impact Eastern Third of U.S. this weekend.

A developing storm system will bring a myriad of significant impacts this weekend. Heavy snow up to 18 inches from the Ohio Valley to the Northeast, and ice up to a quarter of an inch is forecast in places. Heavy rain may cause flash flooding from the Mid-South to the Mid-Atlantic. Severe thunderstorms with damaging winds and isolated tornadoes will be possible in the Deep South.
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For More Weather Information:

Seattle, WA Local Forecast Office

11NM S Seattle WA

Marine Point Forecast

[NOTICE]
  • Overnight

    Rain

    S 19kt
    1-3ft

    Small Craft Advisory
    Small Craft Advisory

  • Saturday

    Showers Likely

    S 21ktWinds Decreasing
    4ftWaves Subsiding

    Small Craft Advisory
    Small Craft Advisory

  • Saturday
    Night

    Slight Chc Showers

    S 10ktWinds Decreasing
    < 1ft
  • Sunday

    Chance Showers

    N 13kt
    1-2ft
  • Sunday
    Night

    Chance Showers

    NNE 12kt
    1ft
  • M.L.King
    Day

    Slight Chc Showers

    Light Wind
    < 1ft
  • Monday
    Night

    Chance Rain

    Light Wind
    < 1ft
  • Tuesday

    Rain

    SSW 14kt
    1-2ft
  • Tuesday
    Night

    Rain

    SSW 19kt
    2-3ft

Associated Zone Forecast which includes this point

Last Update: 8:19 pm PST Jan 18, 2019
Forecast Valid: 12am PST Jan 19, 2019-6pm PST Jan 25, 2019

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

Synopsis: PZZ100-191315- 812 PM PST Fri Jan 18 2019 .Synopsis for the northern and central Washington coastal and inland waters...A 975 mb low west of the Washington offshore waters will slowly fill as it moves northward toward Haida Gwaii. Its associated frontal system will move across the waters tonight. Strong pressure gradients produced by this front will give gales to most of the Washington waters with small craft advisory conditions to Puget Sound and Hood Canal and the western entrance to the Strait. Strong onshore flow behind the front on Saturday will weaken Saturday night. Weak high pressure will move across the waters Sunday and Monday. A weaker frontal system will affect the waters on Tuesday. $$

Overnight
S wind 11 to 19 kt, with gusts as high as 25 kt. Rain. Wind waves 1 to 3 ft.
Saturday
S wind 16 to 21 kt decreasing to 9 to 14 kt in the afternoon. Winds could gust as high as 27 kt. Showers likely, mainly before 10am. Wind waves 4 ft subsiding to 1 ft.
Saturday Night
S wind 5 to 10 kt becoming variable and less than 5 kt after midnight. A slight chance of showers after 10pm. Wind waves 1 ft or less.
Sunday
N wind 11 to 13 kt. A chance of showers. Wind waves 1 to 2 ft.
Sunday Night
NNE wind 10 to 12 kt. A chance of showers, mainly before 10pm. Wind waves around 1 ft.
M.L.King Day
Variable winds 5 kt or less. A slight chance of showers. Wind waves 1 ft or less.
Monday Night
Variable winds 5 kt or less. A chance of rain. Wind waves 1 ft or less.
Tuesday
SSW wind 5 to 14 kt. Rain. Wind waves 1 to 2 ft.
Tuesday Night
SSW wind 14 to 19 kt, with gusts as high as 25 kt. Rain. Wind waves 2 to 3 ft.

*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: 47.45°N 122.4°W
Last Update: 8:19 pm PST Jan 18, 2019
Forecast Valid: 12am PST Jan 19, 2019-6pm PST Jan 25, 2019
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