Significant Winter Storm to Affect the Pacific Coast through the Upper Midwest

A significant storm will bring high winds and heavy precipitation, including mountain snow, to portions of the western U.S. this weekend. Extremely dangerous travel is expected through passes. Confidence is increasing that this storm will then impact the central U.S. with heavy snow and strong winds to the north and severe thunderstorms with possible tornadoes and heavy rainfall to the south.
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Jacksonville, FL Local Forecast Office

3NM SSE Saint Simons GA

Marine Point Forecast

[NOTICE]

Overnight

NNE 7kt
3ft
Low: 62 °F
Saturday

NNE 14kt
3-4ft
High: 65 °F
Saturday
Night
NNE 14kt
3ft
Low: 55 °F
Sunday

N 9kt
3ft
High: 68 °F
Sunday
Night
NNE 6kt
3ft
Low: 57 °F
Monday

NNE 10kt
3ft
High: 64 °F
Monday
Night
NE 14kt
3ft
Low: 55 °F
Tuesday

NE 13kt
3-4ft
High: 64 °F
Tuesday
Night
NE 12kt
3-4ft
Low: 57 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:05 am EST Dec 10, 2022
Forecast Valid: 2am EST Dec 10, 2022-6pm EST Dec 16, 2022

View Nearby Observations

Detailed Forecast

Synopsis: Rising seas will continue as a powerful onshore swell persists. Seas will reach Small Craft Advisory levels offshore overnight with lower seas around 4 to 6 ft for the inner waters. A north northeasterly wind will prevail through the weekend as high pressure remains situated to the north and a coastal trough develops. A weak front will reinforce onshore winds Monday and Tuesday before winds trend southerly then offshore ahead of an approaching cold front on Wednesday. Showers and storms are expected along the second cold front as it pushes across the waters Thursday. Strong northwesterly winds will trail behind this front and persist into next weekend.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of Dec 08, 2022 at 1200 UTC...

50 nautical miles east of Flagler Beach. 59 nautical miles east of Saint Augustine Beach. 75 nautical miles east southeast of Jacksonville Beach. 85 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

Overnight

NNE wind around 7 kt. Cloudy. Seas around 3 ft.

Saturday

NNE wind 7 to 14 kt. Cloudy. Seas 3 to 4 ft.

Saturday Night

NNE wind 9 to 14 kt. Patchy fog between midnight and 1am. Seas around 3 ft.

Sunday

N wind 6 to 9 kt. A slight chance of showers after 1pm. Seas around 3 ft.

Sunday Night

NNE wind around 6 kt. A chance of showers. Seas around 3 ft.

Monday

NNE wind 8 to 10 kt. Mostly cloudy. Seas around 3 ft.

Monday Night

NE wind 11 to 14 kt. Mostly cloudy. Seas around 3 ft.

Tuesday

NE wind around 13 kt. Partly sunny. Seas 3 to 4 ft.

Tuesday Night

NE wind 8 to 12 kt becoming E after midnight. Mostly cloudy. Seas 3 to 4 ft.

*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.