Deep Cold Trough Meets Gulf Moisture with Significant Impacts Across the Western and Central U.S.

A deep trough and associated cold front is bringing much below normal temperatures in the west, with low elevation snows. Strong winds and widespread snow, will impact the Great Basin, western mountains, and the Plains. The slowing front, will bring prolonged waves of heavy rain across the Mississippi Valley to the Great Lakes. Significant icing forecast north of the heavy rain. Big warm up east.
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Jacksonville, FL Local Forecast Office

3NM S Saint Simons GA

Marine Point Forecast

[NOTICE]
  • Washington's
    Birthday

    Areas Fog

    E 7kt
    1ft

    High: 70 °F

  • Tonight

    Slight Chc Showers

    E 6ktWinds Decreasing
    1ft

    Low: 59 °F

  • Tuesday

    Dense Fog

    ESE 8kt
    1ft

    High: 73 °F

  • Tuesday
    Night

    Mostly Cloudy

    ESE 8kt
    1ft

    Low: 62 °F

  • Wednesday

    Partly Sunny

    SE 8kt
    1ft

    High: 74 °F

  • Wednesday
    Night

    Partly Cloudy

    ESE 6ktWinds Decreasing
    1ft

    Low: 61 °F

  • Thursday

    Mostly Sunny

    Winds IncreasingESE 6kt
    1ft

    High: 75 °F

  • Thursday
    Night

    Mostly Clear

    E 6ktWinds Decreasing
    1ft

    Low: 60 °F

  • Friday

    Mostly Sunny

    Winds IncreasingSE 7kt
    1ft

    High: 73 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:18 pm EST Feb 19, 2018
Forecast Valid: 2pm EST Feb 19, 2018-6pm EST Feb 25, 2018

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Detailed Forecast


Synopsis: Dense fog expected this morning, and again Tonight, especially near the coast, and mainly North of St Augustine. High pressure ridge will be centered to the Northeast through Wednesday. The ridge center will then be to the East into the weekend.

Washington's Birthday
E wind around 7 kt. Areas of fog. Seas around 1 ft.
Tonight
E wind around 6 kt becoming variable and less than 5 kt after midnight. A slight chance of showers before 2am. Widespread dense fog, mainly after 5am. Seas around 1 ft.
Tuesday
ESE wind 5 to 8 kt. Widespread dense fog before 9am. Seas around 1 ft.
Tuesday Night
ESE wind 5 to 8 kt. Mostly cloudy. Seas around 1 ft.
Wednesday
SE wind 6 to 8 kt. Partly sunny. Seas around 1 ft.
Wednesday Night
ESE wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 1 ft.
Thursday
Variable winds less than 5 kt becoming ESE around 6 kt in the morning. Mostly sunny. Seas around 1 ft.
Thursday Night
E wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 1 ft.
Friday
Variable winds less than 5 kt becoming SE 5 to 7 kt in the morning. Mostly sunny. Seas around 1 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: 31.12°N 81.4°W
Last Update: 1:18 pm EST Feb 19, 2018
Forecast Valid: 2pm EST Feb 19, 2018-6pm EST Feb 25, 2018
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