Marine Weather Net

Fernandina Beach to St. Augustine, FL Out 20 NM Marine Forecast


REST OF TONIGHT

S
WINDS
5 - 10
KNOTS

WEDNESDAY

N
WINDS
5 - 10
KNOTS

WEDNESDAY NIGHT

S
WINDS
5 KNOTS

THURSDAY

N
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
AMZ452 Forecast Issued: 839 PM EDT Tue May 28 2024

Rest Of Tonight...South Winds 5 To 10 Knots, Becoming West. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 8 Seconds. Intracoastal Waters Light Chop.
Wednesday...North Winds 5 To 10 Knots, Becoming East In The Afternoon. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 8 Seconds. Intracoastal Waters Light Chop.
Wednesday Night...South Winds Around 5 Knots, Becoming West After Midnight. Seas Around 2 Feet. Intracoastal Waters Light Chop.
Thursday...North Winds 5 To 10 Knots, Becoming East In The Afternoon. Seas Around 2 Feet. Intracoastal Waters Light Chop.
Thursday Night...Southeast Winds 5 To 10 Knots. Seas Around 2 Feet. Intracoastal Waters Light Chop. A Slight Chance Of Showers And Thunderstorms In The Evening.
Friday And Friday Night...East Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: East 3 Feet At 4 Seconds. Intracoastal Waters A Moderate Chop. A Slight Chance Of Showers And Thunderstorms.
Saturday...East Winds 10 To 15 Knots. Seas Around 3 Feet. Intracoastal Waters A Moderate Chop. A Slight Chance Of Showers In The Afternoon.
Saturday Night...Southeast Winds 10 To 15 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. Intracoastal Waters A Moderate Chop.
Sunday...Southeast Winds 10 To 15 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. Intracoastal Waters A Moderate Chop. A Slight Chance Of Showers And Thunderstorms Through The Night. A Slight Chance Of Showers After Midnight. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Jacksonville FL
828pm EDT Tuesday May 28 2024

...New

Issued at 823pm EDT Tuesday May 28 2024

Earlier update was to include showers and isolated thunderstorms where the inland progressing sea breeze was interacting with pre- frontal instability roughly from SGJ southward to GNV. Showers in this area this evening will fade through midnight with storm motion to the SE. Rain free conditions and mostly clear skies are expected after midnight under drier and 'cooler' WNW flow trailing the frontal passage. Although dry low level air will be filtering southward across the area tonight, clear skies and recent rainfall could promote areas of fog, especially were heavy rainfall fell last night across portions of the Suwannee River Valley up into Echols, Clinch & Atkinson counties. At this time indicated patchy fog for these areas 4-8 am Wed.

Low temperatures will range from the mid 60s across SE GA to the low 70s toward the Atlantic coast, near normal for this time of year.

For the latest NE FL and SE GA Daily Key Messages please visit: https://www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf

Near Term
Issued at 230pm EDT Tuesday May 28 2304

For the latest NE FL and SE GA Daily Key Messages please visit: https://www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf

Scattered showers and thunderstorms ahead of the frontal boundary will continue to develop over north central Florida and move offshore this afternoon followed by more stable conditions as the front moves south of the forecast area. High pressure following the frontal passage will build over the southeastern US through tonight and into early Wednesday with dry weather, clearing skies, and slightly cooler temperatures. High temperatures for this afternoon will reach up into the 90s with overnight low temperatures dropping down into the mid to upper 60s over inland areas and in the lower 70s along the coastline.

.SHORT TERM... (Wednesday through Thursday night) Issued at 230pm EDT Tuesday May 28 2304

A dry weather pattern will take hold through midweek, as high pressure builds to the north of our area and the frontal boundary stalls over central Florida. Northwesterly flow will become established behind the boundary's passage, allowing for drier air to move into the area, keeping keeping Probability of Precipitation chances on the low side for both Wednesday and Thursday. The high pressure will begin to shift eastward throughout Friday, shifting winds to come from the northeast- east. Increasing PWAT (Precipitable Water) values on Friday will see an increase of Probability of Precipitation chances as the day progresses on Friday, mainly over NE FL.

High temperatures are forecast to remain above normal during the midweek as temperatures will range from the low to mid 90s across the area on Wednesday. Temperatures on Thursday to Friday will begin to drop a bit as SE GA will see highs from the mid 80s to low 90s, while inland NE FL can expect highs from the low 90s to mid 90s with coastal locations seeing highs in the upper 80s. Lows for this time period will range from the mid to upper 60s over inland locations, while coast locations will remain in the low 70s.

Long Term
(Friday through next Tuesday) Issued at 230pm EDT Tuesday May 28 2304

With the high pressure continuing to move off towards the east, winds will continue from the east and eventually the southeast by the start of the upcoming week. Onshore flow will bring daily afternoon chances of showers and storms over the weekend. With the storms, gusty winds and hail will be the primary concerns for any storms that become severe. Daytime temperatures through the weekend and into early next week will remain mainly in the mid 80s to low 90s, with the warmest temperatures expected on the later half of the forecast period.

Marine
Issued at 230pm EDT Tuesday May 28 2304

Scattered showers and isolated storms will continue to move across the local waters this afternoon ahead of a weak cool front. The front will stall south of the waters tonight and linger through Thursday as high pressure builds northwest of the region. High pressure builds north and northeast of the region Thursday and Friday pushing the frontal boundary southward. Onshore easterly winds increase into the weekend as high pressure builds offshore of mid- Atlantic coast.

Rip Currents
Low risk of rip currents at area beaches today. Increase to moderate risk for NE FL beaches on Wednesday.

Hydrology
Issued at 300am EDT Tuesday May 28 2304

Heavy rainfall that fell in Atkinson, Berrien, and Lanier counties will eventually make its way down the Alapaha and Satilla rivers exacerbating any river flooding. River flooding continues along the Santa Fe and Satilla rivers this week.

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