Excessive Heat in Southern California; Tropical Storm Ian Expected to Rapidly Intensify

Excessive heat is possible through Wednesday over southern California. Strong thunderstorms may pose some risk for severe weather across parts of the upper Ohio Valley into the northern Mid Atlantic coast. Tropical Storm Ian is forecast to approach the Florida peninsula at major hurricane strength by midweek, and poses a risk of dangerous storm surge, hurricane-force winds, and heavy rainfall.
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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Overnight

    Clear

    W 10kt
    2ft

    Low: 54 °F

  • Sunday

    Chance Showers

    S 10kt
    2ft

    High: 64 °F

  • Sunday
    Night

    Showers Likely

    S 15kt
    2ft

    Low: 59 °F

  • Monday

    Mostly Sunny

    SW 15kt
    2ft

    High: 65 °F

  • Monday
    Night

    Mostly Clear

    SW 15kt
    2-3ft

    Low: 58 °F

  • Tuesday

    Mostly Sunny

    SSW 10kt
    2ft

    High: 65 °F

  • Tuesday
    Night

    Mostly Clear

    WSW 10kt
    2ft

    Low: 54 °F

  • Wednesday

    Sunny

    WSW 10kt
    2ft

    High: 63 °F

  • Wednesday
    Night

    Partly Cloudy

    NW 10kt
    2ft

    Low: 52 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:04 am EDT Sep 25, 2022
Forecast Valid: 4am EDT Sep 25, 2022-6pm EDT Oct 1, 2022

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Detailed Forecast


Synopsis: ANZ100-252115- 304 AM EDT Sun Sep 25 2022 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM. Southerly flow sets in today with high pressure moving in overhead before a weak low pressure system passes through north of the waters Monday through Wednesday. Winds will remain from the southwest through Wednesday before turning northwest Thursday. $$

Overnight
W wind around 10 kt. Clear. Seas around 2 ft.
Sunday
WSW wind 5 to 10 kt becoming S in the afternoon. A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Seas around 2 ft.
Sunday Night
S wind 10 to 15 kt. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and midnight, then a chance of showers after midnight. Seas around 2 ft.
Monday
SW wind 10 to 15 kt becoming S in the afternoon. Mostly sunny. Seas around 2 ft.
Monday Night
SW wind 10 to 15 kt. Mostly clear. Seas 2 to 3 ft.
Tuesday
SSW wind around 10 kt. Mostly sunny. Seas around 2 ft.
Tuesday Night
WSW wind around 10 kt. Mostly clear. Seas around 2 ft.
Wednesday
WSW wind around 10 kt. Sunny. Seas around 2 ft.
Wednesday Night
NW wind around 10 kt. Partly cloudy. Seas around 2 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: 42.99°N 70.62°W
Last Update: 3:04 am EDT Sep 25, 2022
Forecast Valid: 4am EDT Sep 25, 2022-6pm EDT Oct 1, 2022
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