Strong Storms for Midwest; Very Active Weather Pattern for West

Strong thunderstorms with isolated severe hail are possible today across northern Iowa and southern Minnesota today. Otherwise, a very active and wet weather pattern is expected through early next week for the West Coast and Western U.S. A number of Pacific storm systems will deliver enhanced and excessive rainfall along with mountain snow.
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Last Update: 757 AM EDT Wed Oct 20 2021

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Jacksonville, FL Local Forecast Office

9NM E Jacksonville Beach FL

Marine Zone Forecast

Synopsis: High pressure over the southeast region will build offshore of the Atlantic coast through Thursday. A weak cold front will approach from the north Friday then move south of the waters through early Saturday. High pressure will build north to northeast of the local waters through the weekend.

.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of Oct 19, 2021 at 1200 UTC...

47 nautical miles east northeast of Flagler Beach. 50 nautical miles east of Saint Augustine Beach. 60 nautical miles east southeast of Jacksonville Beach. 86 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

Rest Of Today

East winds 5 to 10 knots. Seas 2 feet with a dominant period 7 seconds. A light chop on the intracoastal waters.

Tonight

Southeast winds 5 to 10 knots. Seas 1 to 2 feet with a dominant period 7 seconds. Mostly smooth on the intracoastal waters.

Thursday

Southeast winds 5 to 10 knots. Seas 1 to 2 feet with a dominant period 8 seconds. A light chop on the intracoastal waters.

Thursday Night

Southeast winds 5 to 10 knots becoming southwest after midnight. Seas 1 to 2 feet. Mostly smooth on the intracoastal waters.

Friday

West winds 5 knots becoming southeast 5 to 10 knots in the afternoon. Seas 1 to 2 feet. A light chop on the intracoastal waters. Slight chance of showers in the afternoon.

Friday Night

South winds 5 to 10 knots becoming west after midnight. Seas 2 feet.

Saturday

North winds 5 to 10 knots becoming northeast in the afternoon. Seas 2 to 3 feet.

Saturday Night

East winds 5 to 10 knots. Seas 2 to 3 feet.

Sunday

East winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Slight chance of showers.