Isaias to Bring Tropical Impacts Across to the East Coast

Isaias is forecast to make landfall tonight in the Carolinas with dangerous storm surge, flash flooding, damaging winds, and isolated tropical tornadoes. Isaias may strengthen briefly prior to landfall, but the impacts will be the same regardless of the categorical definition. Isaias impacts will be felt all along the East Coast as Isaias moves northward through mid-week.
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Philadelphia, PA Local Forecast Office

12NM NE Lewes DE

Marine Point Forecast

[NOTICE]
  • This
    Afternoon

    Heavy Rain

    SSE 10kt
    < 1ft

    High: 83 °F

  • Tonight

    Heavy Rain

    S 10kt
    < 1ft

    Low: 74 °F

  • Tuesday

    Heavy Rain

    Tropical Storm Conditions Expected

    High: 81 °F

  • Tuesday
    Night

    Chance Thunderstorms

    WSW 25ktWinds Decreasing
    < 1ft

    Low: 74 °F

  • Wednesday

    Slight Chc Thunderstorms

    W 10kt
    < 1ft

    High: 82 °F

  • Wednesday
    Night

    Slight Chc Thunderstorms

    Light Wind
    < 1ft

    Low: 74 °F

  • Thursday

    Chance Thunderstorms

    E 10kt
    < 1ft

    High: 80 °F

  • Thursday
    Night

    Chance Thunderstorms

    ESE 10kt
    < 1ft

    Low: 73 °F

  • Friday

    Chance Thunderstorms

    ESE 10kt
    < 1ft

    High: 80 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:19 am EDT Aug 3, 2020
Forecast Valid: 12pm EDT Aug 3, 2020-6pm EDT Aug 9, 2020

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Detailed Forecast

...TROPICAL STORM WARNING IN EFFECT...

Synopsis: A cold front will stall near the region today before lifting north again tonight. Meanwhile, Tropical Storm Isaias is expected to continue northward from Florida and inland across the eastern Carolinas later today before reaching the Mid-Atlantic on Tuesday. Isaias will move toward New England by Wednesday. High pressure will build in to our north later this week into this weekend while a weak front lingers to our south.

This Afternoon
SSW wind 5 to 10 kt becoming SSE. A chance of showers and thunderstorms, mainly between 3pm and 5pm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Tonight
S wind around 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Tuesday
Tropical storm conditions expected. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.
Tuesday Night
WSW wind 20 to 25 kt decreasing to 10 to 15 kt. Winds could gust as high as 30 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Wednesday
W wind 5 to 10 kt. A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Thursday
NE wind 5 to 10 kt becoming ESE in the afternoon. A chance of showers, with thunderstorms also possible after 2pm. Seas 1 ft or less.
Thursday Night
ESE wind 5 to 10 kt becoming SSE after midnight. A chance of showers and thunderstorms. Seas 1 ft or less.
Friday
ENE wind 5 to 10 kt becoming ESE in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

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: 38.93°N 74.95°W
Last Update: 10:19 am EDT Aug 3, 2020
Forecast Valid: 12pm EDT Aug 3, 2020-6pm EDT Aug 9, 2020
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