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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Hazardous Weather Conditions

For More Weather Information:

Jacksonville, FL Local Forecast Office

2NM NNE Saint Augustine Beach FL

Marine Point Forecast

[NOTICE]
  • This
    Afternoon

    Chance Showers

    NW 17kt
    6-7ft

    High: 86 °F

  • Tonight

    Slight Chc Thunderstorms

    SSW 7kt
    3-5ft

    Low: 76 °F

  • Tuesday

    Chance Showers

    Winds IncreasingESE 9kt
    2-3ft

    High: 91 °F

  • Tuesday
    Night

    Chance Thunderstorms

    SSE 9kt
    2-3ft

    Low: 78 °F

  • Wednesday

    Chance Thunderstorms

    Winds IncreasingSE 8kt
    2ft

    High: 86 °F

  • Wednesday
    Night

    Chance Thunderstorms

    SSE 9kt
    2ft

    Low: 78 °F

  • Thursday

    Thunderstorms Likely

    Winds IncreasingESE 8kt
    2ft

    High: 86 °F

  • Thursday
    Night

    Slight Chc Thunderstorms

    SSE 9ktWinds Decreasing
    2ft

    Low: 78 °F

  • Friday

    Thunderstorms Likely

    Winds IncreasingESE 8kt
    2ft

    High: 85 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:16 am EDT Aug 3, 2020
Forecast Valid: 1pm EDT Aug 3, 2020-6pm EDT Aug 9, 2020

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Detailed Forecast


Synopsis: Tropical storm conditions will continue over our offshore waters this morning, with periods of tropical storm conditions possible near shore as outer rain bands associated with Isaias increase in frequency this morning. Isaias will approach the Carolina coast this evening, with winds over our local waters shifting to westerly with decreasing speeds and gradually subsiding seas. Atlantic ridging will then build back over our local waters by midweek, with its axis extending across the Florida peninsula that will result prevailing southerly winds.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of Aug 01, 2020 at 1200 UTC...

61 nautical miles east northeast of Flagler Beach. 68 nautical miles east of Saint Augustine Beach. 82 nautical miles east of Jacksonville Beach. 97 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

This Afternoon
NW wind around 17 kt, with gusts as high as 24 kt. A chance of showers and thunderstorms. Seas 6 to 7 ft.
Tonight
NNW wind 5 to 7 kt becoming S in the evening. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Seas 3 to 5 ft.
Tuesday
Variable winds less than 5 kt becoming ESE 5 to 9 kt in the afternoon. A chance of showers and thunderstorms, mainly between 2pm and 5pm. Seas 2 to 3 ft.
Tuesday Night
SSE wind 5 to 9 kt becoming SSW after midnight. A chance of showers and thunderstorms before 2am. Seas 2 to 3 ft.
Wednesday
Variable winds less than 5 kt becoming SE 5 to 8 kt in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. Seas around 2 ft.
Wednesday Night
SSE wind 6 to 9 kt. A chance of showers and thunderstorms before 2am. Seas around 2 ft.
Thursday
Variable winds less than 5 kt becoming ESE 5 to 8 kt in the morning. Showers and thunderstorms likely after 8am. Seas around 2 ft.
Thursday Night
SSE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms. Seas around 2 ft.
Friday
Variable winds less than 5 kt becoming ESE 5 to 8 kt in the afternoon. Showers and thunderstorms likely. Seas around 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: 29.87°N 81.25°W
Last Update: 11:16 am EDT Aug 3, 2020
Forecast Valid: 1pm EDT Aug 3, 2020-6pm EDT Aug 9, 2020
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