Severe Thunderstorms and Locally Heavy Rainfall Shifts from the Plains to Mid Mississippi Valley on Monday

A strong upper disturbance will depart the central Rockies into the central Plains to form a rather wound-up area of low pressure on Monday. This will shift the chances for severe thunderstorms and locally heavy rainfall from portions of the central and southern Plains into the Mid Mississippi Valley.
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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Today

    Chance Showers

    NE 15ktWinds Decreasing
    3ft

    High: 65 °F

  • Tonight

    Chance Showers

    N 10kt
    2ft

    Low: 55 °F

  • Tuesday

    Sunny

    Winds IncreasingS 10kt
    2ft

    High: 67 °F

  • Tuesday
    Night

    Mostly Clear

    SW 15kt
    3-4ft

    Low: 57 °F

  • Wednesday

    Mostly Sunny

    S 15kt
    2-3ft

    High: 68 °F

  • Wednesday
    Night

    Chance Showers

    S 15kt
    3-4ft

    Low: 61 °F

  • Thursday

    Showers Likely

    S 20kt
    Waves Building8ft

    High: 65 °F

  • Thursday
    Night

    Chance Showers

    SSW 15ktWinds Decreasing
    7ftWaves Subsiding

    Low: 61 °F

  • Friday

    Mostly Sunny

    Light Wind
    4ft

    High: 67 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:49 am EDT Jun 25, 2018
Forecast Valid: 10am EDT Jun 25, 2018-6pm EDT Jul 1, 2018

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Detailed Forecast


Synopsis: ANZ100-260130- 726 AM EDT Mon Jun 25 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Low pressure over the far eastern Gulf of Maine will quickly shift east today. High pressure will build in from the west this afternoon and will crest over the region early Tuesday before shifting offshore south of New England. High pressure will continue to drift off to the southeast Tuesday night. Low pressure will approach from the west on Wednesday and will slowly move east through the region on Thursday. High pressure will build in from the west Thursday night through Friday. $$

Today
NE wind 12 to 15 kt becoming ESE 10 to 13 kt in the afternoon. Winds could gust as high as 20 kt. A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers after 5pm. Seas around 3 ft.
Tonight
SSW wind 5 to 10 kt becoming N after midnight. A chance of showers before 7pm. Seas around 2 ft.
Tuesday
ESE wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Sunny. Seas around 2 ft.
Tuesday Night
SW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly clear. Seas 3 to 4 ft.
Wednesday
WSW wind 10 to 15 kt becoming S in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Seas 2 to 3 ft.
Wednesday Night
S wind around 15 kt, with gusts as high as 25 kt. A chance of showers after 2am. Seas 3 to 4 ft.
Thursday
S wind around 20 kt, with gusts as high as 30 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Seas 6 ft building to 8 ft.
Thursday Night
SSW wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 25 kt. A chance of showers. Seas 7 ft subsiding to 5 ft.
Friday
Variable winds 5 kt or less. Mostly sunny. Seas around 4 ft.

Winds and seas higher in and near tstms.

*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: 43.18°N 70.24°W
Last Update: 8:49 am EDT Jun 25, 2018
Forecast Valid: 10am EDT Jun 25, 2018-6pm EDT Jul 1, 2018
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