Heavy Rainfall to Spread Across the Southeast; Mild Conditions for Much of the East

Slow-moving low pressure will spread locally heavy rainfall and thunderstorms across portions of the Gulf Coast and Southeast U.S. through Sunday. In the wake of this system, cooler air will gradually overtake the Plains, while above normal temperatures linger over the East Coast. Dry and gusty conditions will result in fire weather concerns over parts of southern California.
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Last Update: 300 AM EST Sat Nov 28 2020

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Jacksonville, FL Local Forecast Office

10NM ESE Jekyll Island GA

Marine Zone Forecast

Synopsis: A frontal boundary will move south across region Today. The boundary will lift back north across the region Sunday. A cold front will move southeast across the area late Sunday night into Monday. High pressure will build from the west Monday night through Tuesday, then overhead Tuesday night through Wednesday. The high will build more toward the northeast Wednesday night through Thursday. An area of low pressure will lift northeast from the gulf across area Thursday night into Friday.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of Nov 28, 2020 at 1200 UTC...

56 nautical miles east of Flagler Beach. 68 nautical miles east of Saint Augustine Beach. 81 nautical miles east of Jacksonville Beach. 91 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

Today

West winds 5 to 10 knots becoming northeast in the late morning and afternoon. Seas 2 to 3 feet with a dominant period 9 seconds. A light chop on the intracoastal waters. Areas of fog in the morning, which may be locally dense. Slight chance of showers and thunderstorms in the morning, then chance of showers in the afternoon.

Tonight

Northeast winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 9 seconds. A light chop on the intracoastal waters. Slight chance of showers.

Sunday

Northeast winds 10 to 15 knots becoming southeast 5 to 10 knots in the afternoon. Seas 3 to 4 feet with a dominant period 9 seconds. A moderate chop on the intracoastal waters. Slight chance of showers. Slight chance of thunderstorms in the afternoon.

Sunday Night

South winds 10 to 15 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters. Chance of showers and slight chance of thunderstorms after midnight.

Monday

West winds 15 to 20 knots. Seas 3 to 4 feet. Choppy on the intracoastal waters. Chance of showers in the morning. Slight chance of thunderstorms. Slight chance of showers in the afternoon.

Monday Night

Northwest winds 15 to 20 knots. Seas 3 to 4 feet.

Tuesday

Northwest winds 15 to 20 knots diminishing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet.

Tuesday Night

Northwest winds 10 to 15 knots. Seas 2 to 3 feet.

Wednesday

North winds 10 to 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet.