Sunrise 6:45 AM   Sunset 8:02 PM Moonrise 8:58 PM   Moonset 6:32 AM

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AMZ450 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 228 Pm Edt Thu Apr 25 2024
Tonight - Southeast winds 5 to 10 knots. Seas 2 to 3 feet with a dominant period 11 seconds. Intracoastal waters light chop. Friday - East winds 5 to 10 knots, becoming northeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet with a dominant period 10 seconds. Intracoastal waters a moderate chop. Friday night - East winds around 15 knots. Seas 2 to 4 feet with a dominant period 4 seconds. Intracoastal waters a moderate chop.Saturday - East winds around 15 knots. Seas 3 to 5 feet with a dominant period 7 seconds. Intracoastal waters a moderate chop. Saturday night - East winds 15 to 20 knots. Seas 4 to 6 feet with a dominant period 7 seconds. Intracoastal waters choppy. Sunday - East winds 10 to 15 knots. Seas 4 to 5 feet with a dominant period 7 seconds. Intracoastal waters a moderate chop. Sunday night - Southeast winds 10 to 15 knots. Seas 3 to 5 feet with a dominant period 7 seconds. Intracoastal waters a moderate chop. Monday - Southeast winds around 10 knots. Seas 3 to 4 feet. Monday night - Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Tuesday - Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Tuesday night - South winds 5 to 10 knots. Seas around 3 feet.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 228 Pm Edt Thu Apr 25 2024
Synopsis - A weak cold front has stalled across the fl/ga line, increasing cloud cover for se ga. Weakening high pressure to the south has allowed the atlantic sea breeze to develop near shore this afternoon and evening. Onshore flow will strengthen Friday and through the weekend creating cautionary conditions for ne fl near shore waters over the weekend and possible small craft advisory conditions offshore as seas build for ne fl Saturday evening and into early Sunday morning.
Gulf stream -
the approximate location of the west wall of the gulf stream as of apr 23, 2024 at 1200 utc - .
60 nautical miles east northeast of flagler beach. 66 nautical miles east of saint augustine beach. 75 nautical miles east of jacksonville beach. 90 nautical miles east southeast of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 251825 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 225 PM EDT Thu Apr 25 2024

New NEAR TERM, SHORT TERM, LONG TERM, AVIATION, MARINE, FIRE WEATHER

HIGH RISK OF RIP CURRENTS THIS WEEKEND

NEAR TERM
Issued at 220 PM EDT Thu Apr 25 2024

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

A weak cold front has stalled across the FL/GA line, increasing cloud cover for SE GA. Weakening high pressure to the south has allowed the Gulf coast sea breeze and Atlantic sea breeze to push inland. These converging boundaries will aid in increasing cloud cover for NE FL. Temperatures will be in the mid to upper 80s inland with temperatures in the low 80s along the coast. Afternoon cumulus along the front and sea breeze merger will fade with mostly clear skies prevailing overnight. Under the mostly clear skies, low temperatures will trend near normal with upper 50s inland and low 60s at coastal locations.

SHORT TERM
(Friday through Saturday night)
Issued at 220 PM EDT Thu Apr 25 2024

A stalled and diffuse boundary near the FL/GA border will begin to dissipate through Friday as high pressure shifts to the northeast and wedges across the local area. This will increase the local gradients and onshore flow through Saturday. Through Saturday, ridging will aloft will amplify along the eastern US. Subsidence associated with this feature will keep meaningful rain chances near nil; however, a weak coastal trough over the local waters may push a few sprinkles into the immediate coast on Saturday (kept pops silent <10% at this time). With the moistening onshore flow, skies will trend partly to mostly cloudy by Saturday, especially near the coast. Combination of increasing cloud cover and the breezy, 10-15 mph, onshore flow, temps will trend from the mid 80s inland Friday to the low 80s Saturday while the coastal areas peak in the upper 70s to near 80 each day while overnight temps remain in the mild low/mid 60s.

The main concern over the weekends will be beach hazards as surf builds and rip current risk increases (more below in the marine section).

LONG TERM
(Sunday through next Thursday)
Issued at 220 PM EDT Thu Apr 25 2024

Ridging progged to initially hold steady through the end of the weekend and into early next before being flattened by a dampening upstream shortwave trough Tuesday. That feature will drag a surface cold front with it but as it weakens the front appears to stall generally to the northwest, extending the ongoing dry-spell likely through the latter end of next week when sea breeze showers may begin to be prevalent... Otherwise temperatures will trend above normal through next week with temperatures flirting with the 90s once again as southerly flow develops.

AVIATION
(18Z TAFS)
Issued at 220 PM EDT Thu Apr 25 2024

VFR conditions continue through the forecast period. Expect cloud bases to be around 6k ft, primarily focused along the stalled frontal boundary to the north and the Gulf coast and Atlantic sea breezes. Surface winds along the Atlantic coast have shifted to southeasterly and will make its way inland by the early evening hours with speeds increasing to 10kt around 20Z. Winds will begin to die down after sunset. Friday, Sea-breeze should pick back up around 17Z for the coastal TAF sites.

MARINE
Issued at 220 PM EDT Thu Apr 25 2024

A weak cold front has stalled across the FL/GA line, increasing cloud cover for SE GA. Weakening high pressure to the south has allowed the Atlantic sea breeze to develop near shore this afternoon and evening. Onshore flow will strengthen Friday and through the weekend creating cautionary conditions for NE FL near shore waters over the weekend and possible small craft advisory conditions offshore as seas build for NE FL Saturday evening and into early Sunday morning.

Rip Currents: Moderate Rip current risk at all beaches today, increasing to high risk by Saturday morning and lasting through the weekend as surf builds around 5 foot and breezy, persistent onshore winds develop.

FIRE WEATHER
Issued at 220 PM EDT Thu Apr 25 2024

A weak cool front will near the FL/GA border will dissipate through Friday as strengthening high pressure wedges in from the northeast.
This will lead to increasing easterly surface and transport winds Friday and into the weekend yielding elevated to high dispersions, particularly Saturday. Given the onshore flow, afternoon humidity will gradually trend upward each day. However, winds will be elevated (10-15 mph) and a bit gusty during the afternoons (15-20 mph) through the weekend as well.

HYDROLOGY
Issued at 358 AM EDT Thu Apr 25 2024

Moderate flooding along lower portions of the Santa Fe River near the Three Rivers Estates gauge will continue through the weekend, with water levels then gradually falling, but remaining in minor flood for much of next week. Water levels near the gauge at Hildreth on the lower Santa Fe will also gradually subside late this weekend, with minor flooding expected to continue through at least the middle portions of next week. Water levels are gradually falling along upper portions of the Suwannee River near the gauge at Suwannee Springs, where minor flooding will likely continue through Friday morning. Minor flooding will otherwise continue along most of the lower Suwannee River through the weekend.
Elsewhere, water levels are expected to fall below flood stage along lower portions of the Satilla River near the gauge at Atkinson this evening.

PRELIMINARY POINT TEMPS/POPS
AMG 58 85 63 83 / 0 10 0 0 SSI 63 78 67 78 / 0 0 0 0 JAX 60 82 65 80 / 0 0 0 10 SGJ 62 82 67 80 / 0 0 0 10 GNV 59 86 62 83 / 0 0 0 0 OCF 58 87 63 84 / 0 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES
FL...None.
GA...None.
AM...None.

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Seacamp Dock
Click for Map
Thu -- 04:39 AM EDT     0.35 feet Low Tide
Thu -- 06:47 AM EDT     Sunrise
Thu -- 07:32 AM EDT     Moonset
Thu -- 10:46 AM EDT     6.03 feet High Tide
Thu -- 04:29 PM EDT     0.34 feet Low Tide
Thu -- 08:00 PM EDT     Sunset
Thu -- 09:57 PM EDT     Moonrise
Thu -- 11:09 PM EDT     6.98 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Seacamp Dock, Cumberland Island, Georgia, Tide feet

St. Johns River Entrance
Click for Map
Thu -- 12:28 AM EDT     -0.00 knots Slack
Thu -- 03:01 AM EDT     -2.06 knots Max Ebb
Thu -- 06:47 AM EDT     Sunrise
Thu -- 07:12 AM EDT     0.00 knots Slack
Thu -- 07:32 AM EDT     Moonset
Thu -- 09:45 AM EDT     1.88 knots Max Flood
Thu -- 12:27 PM EDT     -0.00 knots Slack
Thu -- 03:02 PM EDT     -2.03 knots Max Ebb
Thu -- 06:31 PM EDT     0.00 knots Slack
Thu -- 08:01 PM EDT     Sunset
Thu -- 09:57 PM EDT     Moonrise
Thu -- 10:04 PM EDT     2.62 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

St. Johns River Entrance, Florida Current (3), knots

Full Color Weather Map

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