Dangerous Heat in a Couple of Locations; Active Monsoon

Dangerous heat continues in a couple of locations today. In the Pacific Northwest to the central Valley of California and across the Gulf Coast region from the western Florida Panhandle to eastern Texas. Meanwhile, the monsoon threat of heavy rainfall and flooding will be possible in the Four Corners region and west Texas today, with a more significant threat on Friday in Arizona and New Mexico.
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For More Weather Information:

Jacksonville, FL Local Forecast Office

5NM WSW Saint Simons GA

Marine Point Forecast

[NOTICE]
  • This
    Afternoon

    Thunderstorms Likely

    E 7kt
    < 1ft

    High: 89 °F

  • Tonight

    Chance Thunderstorms

    E 7ktWinds Decreasing
    < 1ft

    Low: 74 °F

  • Thursday

    Heavy Rain

    Winds IncreasingE 8kt
    < 1ft

    High: 88 °F

  • Thursday
    Night

    Heavy Rain

    SSE 7ktWinds Decreasing
    < 1ft

    Low: 73 °F

  • Friday

    Showers Likely

    Winds IncreasingS 7kt
    < 1ft

    High: 89 °F

  • Friday
    Night

    Showers Likely

    SE 6kt
    < 1ft

    Low: 74 °F

  • Saturday

    Chance Thunderstorms

    Winds IncreasingSSE 6kt
    < 1ft

    High: 91 °F

  • Saturday
    Night

    Chance Thunderstorms

    SSE 6ktWinds Decreasing
    < 1ft

    Low: 75 °F

  • Sunday

    Chance Thunderstorms

    Winds IncreasingSSE 6kt
    < 1ft

    High: 90 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:15 am EDT Aug 17, 2022
Forecast Valid: 1pm EDT Aug 17, 2022-6pm EDT Aug 23, 2022

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Detailed Forecast


Synopsis: A frontal boundary stalled near the Florida and Georgia border will remain nearly stationary through Thursday evening. Showers and thunderstorms will move over the near shore waters this afternoon and evening and again on Thursday afternoon and evening, with strong to isolated severe storms possible both days. Stronger thunderstorms will be capable of producing strong winds, frequent lightning strikes, and reduced visibilities during heavier downpours. Onshore winds will prevail today, with offshore winds developing on Thursday morning. Atlantic high pressure will then lift northward beginning on Friday, resulting in the frontal boundary lifting slowly north of our local waters during the weekend. Afternoon and evening showers and thunderstorms are expected again on Friday, with decreasing coverage from the weekend through early next week. Prevailing offshore winds on Friday and Saturday will shift to onshore by Sunday, with prevailing onshore winds continuing into early next week.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of Aug 16, 2022 at 1200 UTC...

64 nautical miles east of Flagler Beach. 73 nautical miles east of Saint Augustine Beach. 82 nautical miles east of Jacksonville Beach. 93 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

This Afternoon
E wind 5 to 7 kt. Showers and thunderstorms likely, mainly after 5pm. Seas 1 ft or less.
Tonight
E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, mainly before 9pm. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming E 5 to 8 kt in the afternoon. A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then showers and thunderstorms likely after 2pm. Some of the storms could produce gusty winds and heavy rain. Seas 1 ft or less.
Thursday Night
SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Showers and thunderstorms likely, mainly before midnight. Some of the storms could produce gusty winds and heavy rain. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Friday Night
SE wind around 6 kt becoming SW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 8am. Seas 1 ft or less.
Saturday Night
SSE wind around 6 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less.

Winds and waves higher in and near thunderstorms.

*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: 31.15°N 81.47°W
Last Update: 11:15 am EDT Aug 17, 2022
Forecast Valid: 1pm EDT Aug 17, 2022-6pm EDT Aug 23, 2022
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