Heavy Mountain Snow across Portions of the Rockies and Intermountain West; Mainly Tranquil Weather for the East

A storm will move across the Intermountain West and Rockies through Tuesday. Heavy snow is forecast for the higher terrain with rain for lower elevations. Meanwhile, large area of high pressure for the East will keep the weather tranquil with moderating temperatures. Later this week, a more significant storm is possible for the West, especially for northern California.
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Seattle, WA Local Forecast Office

13NM S Seattle WA

Marine Point Forecast

[NOTICE]
  • Tonight

    Partly Cloudy

    Winds IncreasingESE 14km/h
    < 1m
  • Tuesday

    Mostly Sunny

    SE 8km/hWinds Decreasing
    < 1m
  • Tuesday
    Night

    Chance Rain

    SSE 14km/h
    < 1m
  • Wednesday

    Rain

    Winds IncreasingS 32km/h
    < 1m
  • Wednesday
    Night

    Chance Rain

    S 18km/h
    < 1m
  • Thursday

    Chance Rain

    ESE 14km/h
    < 1m
  • Thursday
    Night

    Rain

    E 13km/h
    < 1m
  • Friday

    Rain

    S 13km/h
    < 1m
  • Friday
    Night

    Rain

    S 11km/h
    < 1m

Associated Zone Forecast which includes this point

Last Update: 6:17 pm PDT Oct 18, 2021
Forecast Valid: 8pm PDT Oct 18, 2021-6pm PDT Oct 25, 2021

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Detailed Forecast


Synopsis: Weak high pressure over the region into tonight for drier conditions and lighter winds. A front will move through the area Tuesday night and through Wednesday for increasing winds. A third, stronger front will move through the area Thursday and Thursday night. Additional systems for the weekend.

Tonight
Variable winds less than 5 km/h becoming ESE 9 to 14 km/h in the evening. Partly cloudy. Wind waves 1 m or less.
Tuesday
SE wind 5 to 8 km/h becoming variable and less than 5 km/h in the morning. Mostly sunny. Wind waves 1 m or less.
Tuesday Night
NNE wind 8 to 14 km/h becoming SSE in the evening. A chance of rain after 11pm. Wind waves 1 m or less.
Wednesday
Variable winds less than 5 km/h becoming S 27 to 32 km/h in the morning. Winds could gust as high as 48 km/h. Rain. Wind waves 1 m or less.
Wednesday Night
S wind 8 to 18 km/h becoming ESE after midnight. A chance of rain, mainly before 11pm. Wind waves 1 m or less.
Thursday
ESE wind 10 to 14 km/h. A chance of rain, mainly after 11am. Wind waves 1 m or less.
Thursday Night
E wind 10 to 13 km/h becoming SSE after midnight. Rain. Wind waves 1 m or less.
Friday
S wind 10 to 13 km/h. Rain. Wind waves 1 m or less.
Friday Night
S wind around 11 km/h. Rain. Wind waves 1 m 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: 47.39°N 122.35°W
Last Update: 6:17 pm PDT Oct 18, 2021
Forecast Valid: 8pm PDT Oct 18, 2021-6pm PDT Oct 25, 2021
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