Threat For Heavy Rainfall And Flash Flooding Continues From The Mid South To The Mid Atlantic; Critical Fire Weather Over The Western U.S.

A slow moving low pressure system will bring a continued threat for heavy rainfall and flooding from portions of the Mid South to the Ohio Valley and Mid Atlantic through midweek. Some areas could see locally significant flooding. Out west,very dry humidity combined with gusty winds will lead to a continued threat for critical fire weather and dry thunderstorms.
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Gray/Portland, ME Local Forecast Office

18NM S Portland ME

Marine Point Forecast

[NOTICE]
  • Overnight

    Mostly Cloudy

    ESE 15kt
    4ft

    Low: 46 °F

  • Tuesday

    Rain

    SE 20kt
    4-5ft

    High: 62 °F

  • Tuesday
    Night

    Rain

    SSE 25ktWinds Decreasing
    7-8ft

    Low: 62 °F

  • Wednesday

    Chance Thunderstorms

    S 15kt
    5-6ft

    High: 69 °F

  • Wednesday
    Night

    Showers Likely

    SSW 15kt
    6ft

    Low: 58 °F

  • Thursday

    Partly Sunny

    N 10kt
    4-5ft

    High: 62 °F

  • Thursday
    Night

    Partly Cloudy

    Light Wind
    3ft

    Low: 55 °F

  • Friday

    Partly Sunny

    Light Wind
    3ft

    High: 61 °F

  • Friday
    Night

    Mostly Clear

    W 10kt
    3ft

    Low: 57 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:42 pm EDT Sep 24, 2018
Forecast Valid: 4am EDT Sep 25, 2018-6pm EDT Oct 1, 2018

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Detailed Forecast


Synopsis: ANZ100-251630- 1016 PM EDT Mon Sep 24 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure will shift east tonight. A warm front will approach from the southwest on Tuesday and will lift into northern Maine Tuesday night. Low pressure will move northeast through central Quebec on Wednesday and will drive a trailing cold front through the region Wednesday night. High pressure will build in from the west on Thursday. && $$

Overnight
ESE wind around 15 kt. Mostly cloudy. Seas around 4 ft.
Tuesday
SE wind 15 to 20 kt, with gusts as high as 30 kt. Rain, mainly after 2pm. Patchy fog after noon. Seas 4 to 5 ft.
Tuesday Night
SSE wind 20 to 25 kt becoming SSW 15 to 20 kt. Winds could gust as high as 35 kt. Rain. Patchy fog before 10pm. Seas 7 to 8 ft.
Wednesday
S wind around 15 kt, with gusts as high as 25 kt. A chance of showers, with thunderstorms also possible after 2pm. Seas 5 to 6 ft.
Wednesday Night
SSW wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 25 kt. Showers and thunderstorms likely before 2am, then a chance of showers between 2am and 4am. Seas around 6 ft.
Thursday
N wind around 10 kt. Partly sunny. Seas 4 to 5 ft.
Thursday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 3 ft.
Friday
Variable winds 5 kt or less. Partly sunny. Seas around 3 ft.
Friday Night
SSW wind around 10 kt becoming W after midnight. Mostly clear. Seas around 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: 43.36°N 70.28°W
Last Update: 10:42 pm EDT Sep 24, 2018
Forecast Valid: 4am EDT Sep 25, 2018-6pm EDT Oct 1, 2018
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