Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult.
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Hazardous Weather Conditions

For More Weather Information:

Juneau, AK Local Forecast Office

7NM SE Sitka AK

Marine Point Forecast

[NOTICE]
  • Tonight

    Snow

    Light Wind
    < 1ft

    Low: 30 °F

  • Monday

    Rain/Snow Likely

    Light Wind
    < 1ft

    High: 37 °F

  • Monday
    Night

    Chance Snow

    NE 10ktWinds Decreasing
    < 1ft

    Low: 26 °F

  • Tuesday

    Patchy Freezing Fog

    Light Wind
    < 1ft

    High: 34 °F

  • Tuesday
    Night

    Showers Likely

    N 15kt
    < 1ft

    Low: 30 °F

  • Wednesday

    Showers Likely

    WSW 10kt
    < 1ft

    High: 39 °F

  • Wednesday
    Night

    Chance Rain/Snow

    W 10kt
    < 1ft

    Low: 32 °F

  • Thursday

    Chance Rain/Snow

    NE 15kt
    < 1ft

    High: 40 °F

  • Thursday
    Night

    Chance Rain

    NE 15kt
    < 1ft

    Low: 33 °F


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:32 pm AKST Dec 17, 2017
Forecast Valid: 6pm AKST Dec 17, 2017-6pm AKST Dec 24, 2017

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Detailed Forecast

...SMALL CRAFT ADVISORY DUE TO SEAS THROUGH MONDAY...

Synopsis: A weakening low over the central gulf will move E into the east-central gulf by early Mon morning. The low will then be pushed SE by a building high pressure area over the gulf and NW Canada Mon afternoon into Mon night.

Tonight
Variable winds 5 kt or less. Snow showers, mainly after 3am. Patchy freezing fog after midnight. Seas 1 ft or less.
Monday
Variable winds 5 kt or less. Snow showers likely before noon, then rain showers likely between noon and 3pm, then scattered rain and snow showers after 3pm. Patchy freezing fog before noon. Seas 1 ft or less.
Monday Night
NE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Scattered snow showers before 9pm. Patchy fog before 9pm. Patchy freezing fog after 9pm. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. Patchy freezing fog before 9am. Seas 1 ft or less.
Tuesday Night
W wind 5 to 15 kt becoming N in the evening. Showers likely, mainly after 3am. Seas 1 ft or less.
Wednesday
WSW wind 5 to 10 kt. Showers likely, mainly before 9am. Seas 1 ft or less.
Wednesday Night
W wind 5 to 10 kt becoming SW in the evening. Scattered rain showers before 3am, then a chance of snow. Seas 1 ft or less.
Thursday
SW wind 10 to 15 kt becoming NE in the morning. A chance of rain and snow. Seas 1 ft or less.
Thursday Night
NE wind around 15 kt becoming ESE after midnight. A chance of rain. Seas 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: 56.98°N 135.12°W
Last Update: 4:32 pm AKST Dec 17, 2017
Forecast Valid: 6pm AKST Dec 17, 2017-6pm AKST Dec 24, 2017
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