Marine Weather Net

Altamaha Sound to Fernandina Beach FL Marine Forecast


TONIGHT

W
WINDS
5 KNOTS

TUESDAY

E
WINDS
5 - 10
KNOTS

TUESDAY NIGHT

SE
WINDS
10
KNOTS

WEDNESDAY

S
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
AMZ450 Forecast Issued: 835 PM EST Mon Nov 28 2022

Tonight...West Winds Around 5 Knots, Becoming North After Midnight. Seas Around 2 Feet With A Dominant Period 9 Seconds. Intracoastal Waters Light Chop.
Tuesday...East Winds 5 To 10 Knots. Seas Around 2 Feet With A Dominant Period 9 Seconds. Intracoastal Waters Light Chop.
Tuesday Night...Southeast Winds Around 10 Knots. Seas 2 To 3 Feet With A Dominant Period 9 Seconds. Intracoastal Waters Light Chop. Patchy Fog After Midnight.
Wednesday...South Winds 10 To 15 Knots, Diminishing To 5 To 10 Knots In The Afternoon. Seas 2 To 3 Feet With A Dominant Period 5 Seconds. Intracoastal Waters A Moderate Chop. A Slight Chance Of Showers In The Morning, Then A Chance Of Showers With A Slight Chance Of Thunderstorms In The Afternoon.
Wednesday Night...West Winds 10 To 15 Knots, Becoming North 15 To 20 Knots After Midnight. Seas 2 To 4 Feet With A Dominant Period 5 Seconds. Intracoastal Waters Choppy.
Thursday...Northeast Winds Around 20 Knots. Seas 4 To 6 Feet With A Dominant Period 5 Seconds. Intracoastal Waters Choppy.
Thursday Night...Northeast Winds 15 To 20 Knots. Seas 5 To 6 Feet With A Dominant Period 6 Seconds. Intracoastal Waters Choppy.
Friday...East Winds 10 To 15 Knots. Seas 4 To 6 Feet.
Friday Night...East Winds 10 To 15 Knots. Seas 4 To 6 Feet.
Saturday...East Winds 5 To 10 Knots. Seas 3 To 5 Feet.
Saturday Night...Southeast Winds 5 To 10 Knots. Seas 3 To 4 Feet. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Jacksonville FL
1229am EST Tuesday Nov 29 2022

.SHORT TERM... (Tuesday through Thursday) Issued at 204pm EST Monday Nov 28 2022

The high will move more toward the northeast Tuesday, as moisture gathers in the Gulf and moves north toward a low pressure system developing over the central US. Inland fog will dissipate during the morning hours, with sunshine expected for much of the day. A gradual increase in high cloudiness from convection west of the area is anticipated later in the day. Highs Tuesday, will once again be above seasonal averages.

The high will move further away to the northeast Tuesday night, as cold front approaches from the northwest. Clouds will be on the increase through the night ahead of the front, with a chance for a few inland showers toward dawn. Lows Tonight will be above normal. Sea fog will be possible along the NE FL coast toward dawn, as higher dewpoint air pushes north into area. Dewpoints will be near or possibly above the SST temperatures, leading to the potential for sea fog development. The orientation of the winds would then push this fog ashore. The winds become more offshore during the morning hours of Wednesday, helping to push any fog that does not mix out after sunrise back out over the waters.

The cold front is expected to move southeast across forecast area during the afternoon and evening Wednesday. With the parent low moving well to the north as the front moves through, energy along the front is expected to decrease. Therefore, the best chance for more widespread showers, with embedded thunderstorms will be inland, with chances fading as the front moves further to the east. A few strong storms will be possible during the first half of the day inland. Temperatures will be above normal for Wednesday.

High pressure will build from the northwest Wednesday night, with cooler and drier air advecting into region.

Long Term
(Thursday night through next Monday) Issued at 204pm EST Monday Nov 28 2022

Strengthening high pressure will become centered over the Carolinas Thursday night, with inverted trough remaining over the coastal waters. The combination of the gradient around the high, and the trough will result in elevated winds at the coast through the night. It is expected to be a dry night, but greater cloud cover over eastern counties is forecast due to the trough.

The high will lift further away to the northeast Friday night, into Saturday, as a cold front approaches from the northwest. A cold front is expected to move south southeast across area late Saturday night through Sunday. At this time, this front is expected to be fairly dry, but a few showers can not be ruled out.

Weak high pressure ridge will be over the area on Monday, with a dry day expected.

Temperatures this period will trend above normal.

Marine
Issued at 204pm EST Monday Nov 28 2022

High pressure will be north of the area through Tonight, then to the northeast Tuesday into Tuesday night. Patchy sea fog possible along NE FL coast Tuesday night. A cold front will move southeast across the area Wednesday afternoon and evening. High pressure will build from the northwest Wednesday night. The high will build to the north Thursday, then to the northeast Thursday night into Friday. A coastal trough is expected to develop over the waters Thursday and Thursday night. The high will move away to the northeast Saturday, with a cold front moving south southeast across the area Saturday night into Sunday.

Small Craft advisory level conditions expected to begin Thursday.

Rip Currents
SE GA Low through Tuesday NE FL Increasing to Moderate for Tuesday

NOAA Jacksonville FL Office: Watches - Warnings - Advisories
FL...None. GA...None. AM...None.