Marine Weather Net

Altamaha Sound to Fernandina Beach FL Marine Forecast


TONIGHT

NW
WINDS
25 - 30
KNOTS

TUESDAY

N
WINDS
20 - 25
KNOTS

TUESDAY NIGHT

S
WINDS
5 - 10
KNOTS

WEDNESDAY

W
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
AMZ450 Forecast Issued: 202 PM EDT Mon Mar 18 2024

GALE WARNING IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH TUESDAY MORNING
Tonight...Northwest Winds 25 To 30 Knots With Gusts Up To 40 Knots. Seas 4 To 6 Feet With A Dominant Period 3 Seconds. Intracoastal Waters Very Rough.
Tuesday...North Winds 20 To 25 Knots, Becoming Northeast 5 To 10 Knots In The Afternoon. Seas 4 To 6 Feet With A Dominant Period 6 Seconds. Intracoastal Waters Rough.
Tuesday Night...South Winds 5 To 10 Knots, Becoming West After Midnight. Seas 2 To 3 Feet With A Dominant Period 6 Seconds. Intracoastal Waters Light Chop.
Wednesday...West Winds 5 To 10 Knots, Becoming South In The Afternoon. Seas 2 To 3 Feet With A Dominant Period 7 Seconds. Intracoastal Waters Light Chop.
Wednesday Night...Southwest Winds 5 To 10 Knots, Becoming West After Midnight. Seas Around 2 Feet With A Dominant Period 7 Seconds. Intracoastal Waters Light Chop.
Thursday...North Winds 5 To 10 Knots, Becoming Northeast In The Afternoon. Seas Around 2 Feet With A Dominant Period 7 Seconds. Intracoastal Waters Light Chop.
Thursday Night...East Winds 10 To 15 Knots. Seas 2 To 3 Feet With A Dominant Period 7 Seconds. Intracoastal Waters A Moderate Chop. A Chance Of Showers.
Friday...Southeast Winds 15 To 20 Knots. Seas 3 To 5 Feet. Showers With A Slight Chance Of Thunderstorms.
Friday Night...Northwest Winds 10 To 15 Knots. Seas 4 To 5 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms.
Saturday...North Winds Around 15 Knots. Seas 4 To 5 Feet. A Slight Chance Of Showers.
Saturday Night...North Winds 15 To 20 Knots. Seas 4 To 6 Feet. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Jacksonville FL
721pm EDT Monday Mar 18 2024

.SHORT TERM... (Tuesday through Wednesday night) Issued at 203pm EDT Monday Mar 18 2024

High pressure conditions will be in place through the middle of the week with dry weather, mostly clear skies, and predominantly mild winds persisting through Wednesday. There is a possibility for frost formation early Wednesday morning for some areas however conditions for development are borderline so confidence at this time is low. Coolest temperatures for the week will be on Tuesday with high temperatures in the lower to mid 60s on Tuesday and rising into the lower 70s Wednesday. Overnight low temperatures will similarly rise from out of the upper 30s up into the mid 40s Wednesday night going into early Thursday morning.

Long Term
(Thursday through next Monday) Issued at 203pm EDT Monday Mar 18 2024

The influence of high pressure will diminish and move off to the east on Thursday with chances for showers and thunderstorms increasing on Friday as instability associated with a low pressure system traveling across the Gulf of Mexico and then being followed by a dry front bringing high pressure conditions over the forecast area by the end of the weekend. Temperatures will drop to be slightly below the seasonal average by the end of the week but will return to normal levels by the end of the weekend.

Marine
Issued at 203pm EDT Monday Mar 18 2024

A cold front and wave of low pressure will continue to move across the area today with scattered to numerous showers through the afternoon and into the evening. In the wake of the cold front, a rapid increase in northwest to north winds is expected tonight and will support gale force conditions with a gale warning is now in effect. Winds will lighten Tuesday afternoon as high pressure to the west shifts over the waters. High pressure will be the dominant weather feature until the next weather disturbance arrives Thursday night which will increase winds and build seas again through Friday.

Rip Currents
Low risk today with low surf of about 1 foot. Increased risk will be possible on Tuesday due to increased northerly winds.

NOAA Jacksonville FL Office: Watches - Warnings - Advisories
FL...None. GA...None. AM...Gale Warning until 8am EDT Tuesday for AMZ450-452-454-470-472- 474.