Atmospheric River in the Pacific Northwest and Northwest California Early This Week

An atmospheric river event will bring heavy rains and rising snow levels to the Pacific Northwest and northwest California early this week. Snow levels will rise above 8,000 feet, and 4 to 7 inches of rain is forecast for the southwest facing slopes of the mountains. Minor river and localized flooding will be possible. In the east, winds decrease by Monday, and the week will be relatively dry.
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Philadelphia, PA Local Forecast Office

21NM N Lewes DE

Marine Point Forecast

[NOTICE]
  • Tonight

    Mostly Clear

    WNW 20kt
    4ft

    Low: 35 °F

    Gale Warning
    Gale Warning

  • Monday

    Sunny

    WNW 20ktWinds Decreasing
    3ft

    High: 50 °F

  • Monday
    Night

    Clear

    WSW 13kt
    3ft

    Low: 37 °F

  • Tuesday

    Sunny

    SSW 14kt
    3ft

    High: 58 °F

  • Tuesday
    Night

    Rain Likely

    SSW 14kt
    2-3ft

    Low: 48 °F

  • Wednesday

    Chance Rain

    Winds IncreasingNNW 14kt
    2-3ft

    High: 53 °F

  • Wednesday
    Night

    Mostly Clear

    N 14kt
    2-3ft

    Low: 36 °F

  • Thanksgiving
    Day

    Mostly Sunny

    N 11ktWinds Decreasing
    2ft

    High: 46 °F

  • Thursday
    Night

    Partly Cloudy

    WNW 7kt
    1-2ft

    Low: 37 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:38 pm EST Nov 19, 2017
Forecast Valid: 9pm EST Nov 19, 2017-6pm EST Nov 26, 2017

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Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 5 AM EST MONDAY...

Synopsis: Low pressure over southeast Canada will continue to lift to the north and east tonight. Meanwhile, high pressure over Texas builds east through the Gulf Coast states and will move off the Mid-Atlantic coast Monday night. A cold front approaches Tuesday night and passes through the region on Wednesday. At the same time, low pressure over the Southeast approaches the Mid- Atlantic and moves out to sea. High pressure builds through the region to close out the week. A cold front passes through the region Saturday, then low pressure will be over eastern Canada over next weekend.

Tonight
WNW wind around 20 kt, with gusts as high as 32 kt. Mostly clear. Seas around 4 ft.
Monday
WNW wind 17 to 20 kt becoming W 14 to 17 kt in the afternoon. Winds could gust as high as 29 kt. Sunny. Seas around 3 ft.
Monday Night
WSW wind around 13 kt. Clear. Seas around 3 ft.
Tuesday
SSW wind 12 to 14 kt, with gusts as high as 20 kt. Sunny. Seas around 3 ft.
Tuesday Night
SSW wind 9 to 14 kt becoming WSW after midnight. Winds could gust as high as 20 kt. Rain likely, mainly after 3am. Seas 2 to 3 ft.
Wednesday
WNW wind 8 to 11 kt becoming NNW 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A chance of rain, mainly before noon. Seas 2 to 3 ft.
Wednesday Night
N wind 12 to 14 kt, with gusts as high as 20 kt. Mostly clear. Seas 2 to 3 ft.
Thanksgiving Day
N wind 8 to 11 kt becoming NW 5 to 8 kt in the afternoon. Mostly sunny. Seas around 2 ft.
Thursday Night
WNW wind 5 to 7 kt. Partly cloudy. Seas 1 to 2 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: 39.12°N 75.08°W
Last Update: 6:38 pm EST Nov 19, 2017
Forecast Valid: 9pm EST Nov 19, 2017-6pm EST Nov 26, 2017
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