Tranquil Conditions Across The U.S.

Overall a quiet day or two coming up for the U.S. lower 48. A system will pass through the South and northern Gulf Coast region for some rain and a few thunderstorms, perhaps some light snow on the northern periphery from the Mid Mississippi Valley into the western Ohio Valley. Another system will sweep through the Northwest to the northern Rockies with some shower activity and mountain snow.
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Last Update: 924 PM EST Tue Jan 28 2020

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Jacksonville, FL Local Forecast Office

31NM E Mayport FL

Marine Zone Forecast

Synopsis: High pressure will build to the north northwest through Wednesday. An area of low pressure will track east across the area Wednesday into Thursday. A brief period of Small Craft Advisory conditions will be possible Thursday as the low departs and high pressure strengthens north of the region. High pressure will build to the north northeast Thursday night into Friday, with a trough developing along the coast. A cold front will move east across the area Friday night into Saturday morning. High pressure will build from the west Saturday night and Sunday, and overhead on Monday.

.GULF STREAM...

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

49 nautical miles east northeast of Flagler Beach. 48 nautical miles east northeast of Saint Augustine Beach. 49 nautical miles east of Jacksonville Beach. 63 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

Rest Of Tonight

Northeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 11 seconds.

Wednesday

East northeast winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 11 seconds. A chance of showers.

Wednesday Night

East winds 15 to 20 knots becoming north after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet building to 5 to 7 feet with occasional seas up to 9 feet after midnight. Dominant period 5 seconds. Showers and a slight chance of thunderstorms.

Thursday

North northeast winds 20 to 25 knots with occasional gusts to around 35 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. A chance of showers.

Thursday Night

East northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. A chance of showers.

Friday

East southeast winds 10 to 15 knots becoming south southeast in the afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Showers likely.

Friday Night And Saturday

Northwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. A slight chance of thunderstorms in the evening. Showers.

Saturday Night And Sunday

West winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet.