Heavy Rainfall Threat The Next Few Days Across The Eastern U.S.

A strong cold front will gradually push through the Eastern U.S. over the next few days and will likely produce heavy rain and severe weather. The rainfall may become excessive and result in flash flooding. Flash flood watches are currently in effect from the coastal Carolinas to the Great Lakes.
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For More Weather Information:

Jacksonville, FL Local Forecast Office

2NM NNE Saint Augustine Beach FL

Marine Point Forecast

[NOTICE]
  • This
    Afternoon

    Chance Showers

    ESE 10kt
    3ft

    High: 85 °F

  • Tonight

    Chance Showers

    SSE 12kt
    3ft

    Low: 78 °F

  • Wednesday

    Chance Showers

    S 9kt
    2ft

    High: 88 °F

  • Wednesday
    Night

    Chance Showers

    SSW 11kt
    3ft

    Low: 75 °F

  • Thursday

    Slight Chc Showers

    NNW 11kt
    3ft

    High: 82 °F

  • Thursday
    Night

    Slight Chc Showers

    NNE 8kt
    3ft

    Low: 75 °F

  • Friday

    Slight Chc Showers

    NNE 10kt
    3ft

    High: 80 °F

  • Friday
    Night

    Partly Cloudy

    NNE 8kt
    3ft

    Low: 76 °F

  • Saturday

    Chance Showers

    NNE 9kt
    3ft

    High: 81 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:05 am EDT Sep 21, 2021
Forecast Valid: 12pm EDT Sep 21, 2021-6pm EDT Sep 27, 2021

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Detailed Forecast


Synopsis: High pressure centered over the Canadian Maritime region will gradually weaken this afternoon and tonight in advance of a strong cold front that will approach the southeastern states. Meanwhile, a stationary and weak frontal boundary just north of the Georgia waters this morning will lift northward as a warm front tonight. Showers and thunderstorms over the offshore waters will gradually weaken this afternoon, with another round of thunderstorms possible this afternoon near the immediate coast, followed by increasing activity offshore this evening and overnight. The strong cold front will continue to push southeastward on Wednesday, maintaining chances for showers and thunderstorms ahead of it through Wednesday night. This front will cross the Georgia waters during the overnight hours on Wednesday night and will push south of the northeast Florida waters shortly after sunrise on Thursday. Northwesterly winds will briefly increase in the wake of this frontal passage and will shift to northerly by Thursday afternoon. High pressure building into the southeastern states late this week will gradually weaken by the weekend, resulting in winds shifting to northeasterly as the frontal boundary stalls across south Florida.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of Sep 21, 2021 at 1200 UTC...

52 nautical miles east of Flagler Beach. 66 nautical miles east of Saint Augustine Beach. 75 nautical miles east of Jacksonville Beach. 87 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

This Afternoon
S wind 8 to 10 kt becoming ESE. A chance of showers and thunderstorms, mainly after 3pm. Seas around 3 ft.
Tonight
SSE wind 8 to 12 kt becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 1am. Seas around 3 ft.
Wednesday
S wind 7 to 9 kt. A chance of showers and thunderstorms, mainly after noon. Seas around 2 ft.
Wednesday Night
S wind around 11 kt becoming WNW after midnight. A chance of showers and thunderstorms, mainly before 2am. Seas around 3 ft.
Thursday
NNW wind 9 to 11 kt. A slight chance of showers. Seas around 3 ft.
Thursday Night
NNE wind around 8 kt. A slight chance of showers before 2am. Seas around 3 ft.
Friday
NNE wind around 10 kt. A slight chance of showers after 8am. Seas around 3 ft.
Friday Night
NNE wind 5 to 8 kt. Partly cloudy. Seas around 3 ft.
Saturday
NNE wind 7 to 9 kt. A chance of showers. Seas around 3 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: 9:05 am EDT Sep 21, 2021
Forecast Valid: 12pm EDT Sep 21, 2021-6pm EDT Sep 27, 2021
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