Very Heavy Rainfall and High Risk Flood Event in the South-Central U.S.

Thunderstorms, some severe, will continue to produce tremendously heavy rainfall over the same areas through the day today. The area with the greatest potential for excessive rainfall includes Oklahoma, Arkansas, and Missouri. Very heavy rains will extend broadly from the Southern Plains to the Upper Midwest. Life threatening flash flooding is expected with these storms.
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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Today

    Slight Chc Showers

    N 15ktWinds Decreasing
    2-3ft

    High: 48 °F

    Small Craft Advisory
    Small Craft Advisory

  • Tonight

    Chance Rain

    SSE 10kt
    2-3ft

    Low: 41 °F

  • Monday

    Areas Rain

    SSE 10kt
    2-3ft

    High: 51 °F

  • Monday
    Night

    Rain Likely

    S 10kt
    2-3ft

    Low: 50 °F

  • Tuesday

    Chance Rain

    SW 15kt
    4ft

    High: 62 °F

  • Tuesday
    Night

    Partly Cloudy

    WSW 15kt
    2-3ft

    Low: 49 °F

  • Wednesday

    Mostly Sunny

    W 15kt
    2ft

    High: 57 °F

  • Wednesday
    Night

    Partly Cloudy

    WNW 15kt
    2ft

    Low: 44 °F

  • Thursday

    Mostly Sunny

    WNW 10kt
    1-2ft

    High: 55 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:07 am EDT Apr 30, 2017
Forecast Valid: 6am EDT Apr 30, 2017-6pm EDT May 6, 2017

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Detailed Forecast


Synopsis: HIGH PRESSURE WILL BUILD OVER THE WATERS TODAY BEFORE MOVING OFF TO THE EAST ON MONDAY. A WARM FRONT LIFTS NORTH BUT REMAINS SOUTH OF THE WATERS SUNDAY NIGHT AND MONDAY. LOW PRESSURE SLOWLY MOVING NORTHEAST OUT OF THE GREAT LAKES WILL DRIVE A COLD FRONT ACROSS THE WATERS BY EARLY TUESDAY. ADDITIONAL FRONTS WILL CROSS THE WATERS ON THROUGH WEDNESDAY BEFORE HIGH PRESSURE BUILDS IN ON THURSDAY.

Today
N wind 10 to 15 kt becoming ESE 5 to 8 kt in the afternoon. A slight chance of showers between 3pm and 5pm. Seas 2 to 3 ft.
Tonight
SSE wind 5 to 10 kt. A chance of drizzle between 2am and 5am, then a chance of rain after 5am. Seas 2 to 3 ft.
Monday
SSE wind around 10 kt becoming E in the afternoon. A chance of drizzle before 8am, then a chance of rain between 8am and noon, then areas of drizzle after noon. Patchy fog after noon. Seas 2 to 3 ft.
Monday Night
ENE wind 5 to 10 kt becoming S after midnight. Rain likely, mainly between 2am and 3am. Seas 2 to 3 ft.
Tuesday
SW wind around 15 kt. A chance of rain before 1pm. Seas around 4 ft.
Tuesday Night
WSW wind 10 to 15 kt. Partly cloudy. Seas 2 to 3 ft.
Wednesday
W wind around 15 kt. Mostly sunny. Seas around 2 ft.
Wednesday Night
WNW wind 10 to 15 kt. Partly cloudy. Seas around 2 ft.
Thursday
WNW wind 5 to 10 kt becoming SSE in the afternoon. Mostly sunny. 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: 42.99°N 70.62°W
Last Update: 3:07 am EDT Apr 30, 2017
Forecast Valid: 6am EDT Apr 30, 2017-6pm EDT May 6, 2017
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