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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Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Miami - South Florida Local Forecast Office

3NM WSW Key Biscayne FL

Marine Point Forecast

[NOTICE]

Tonight

N 9kt
Low: 80 °F
Wednesday

SE 7kt
High: 85 °F
Wednesday
Night
W 6kt
Low: 80 °F
Thursday

SSE 7kt
High: 86 °F
Thursday
Night
Light Wind
Low: 80 °F
Friday

SE 6kt
High: 86 °F
Friday
Night
Light Wind
Low: 80 °F
Saturday

SE 6kt
High: 85 °F
Saturday
Night
Light Wind
Low: 80 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:45 pm EDT Sep 21, 2021
Forecast Valid: 8pm EDT Sep 21, 2021-6pm EDT Sep 28, 2021

View Nearby Observations

Detailed Forecast

Synopsis: The periphery of a weak surface high pressure remains established over South Florida. Scattered showers and thunderstorms are possible over area waters today. Scattered showers and thunderstorms will also remain possible from time to time over all of the local waters over the next few days. Winds and waves could be locally higher in any shower or thunderstorm activity.

.GULF STREAM HAZARDS...None.

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

13 nautical miles east of Fowey Rocks. 20 nautical miles east northeast of Port Everglades. 8 nautical miles east northeast of Lake Worth. 7 nautical miles northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Tonight

N wind 6 to 9 kt becoming ENE after midnight. A chance of showers and thunderstorms, mainly before 1am. Bay waters a light chop.

Wednesday

SSE wind 5 to 7 kt becoming NNE in the morning. A chance of showers and thunderstorms. Bay waters smooth.

Wednesday Night

W wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms. Bay waters smooth.

Thursday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Bay waters smooth.

Thursday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Bay waters smooth.

Friday

Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Bay waters smooth.

Friday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Bay waters smooth.

Saturday

Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. Showers and thunderstorms likely. Bay waters smooth.

Saturday Night

Variable winds 5 kt or less. Showers and thunderstorms likely. Bay waters smooth.

*Notices:

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.
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.