Sunrise 6:27 AM   Sunset 8:15 PM Moonrise 4:47 PM   Moonset 3:32 AM

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AMZ454 Expires:202405210615;;551524 Fzus52 Kjax 201755 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 155 pm edt Mon may 20 2024
atlantic coastal waters from altamaha sound ga to flagler beach fl out to 60 nm.
seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 1/10 of the waves.
amz450-452-454-210615- 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- 155 pm edt Mon may 20 2024
.small craft advisory in effect until 8 pm edt this evening - .
Rest of today - Northeast winds around 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northeast 5 feet at 5 seconds and northeast 5 feet at 8 seconds. Intracoastal waters choppy. A slight chance of Thunderstorms late this morning. A slight chance of showers. Tonight - Northeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: northeast 5 feet at 7 seconds and northeast 2 feet at 4 seconds. Intracoastal waters choppy. A slight chance of showers after midnight. Tuesday - Northeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: northeast 5 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of Thunderstorms. A chance of showers, mainly in the morning. Tuesday night - Northeast winds 10 to 15 knots, becoming east 5 to 10 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: northeast 4 feet at 7 seconds. Intracoastal waters a moderate chop. Wednesday - Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: northeast 3 feet at 7 seconds. Intracoastal waters light chop. Wednesday night - Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 7 seconds. Intracoastal waters light chop. Thursday through Friday - Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop.
winds and waves higher in and near Thunderstorms.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 155 Pm Edt Mon May 20 2024
Synopsis -
brisk northeasterly flow continues through this evening as high pressure ridging continues to build in. Small craft advisories remain in effect for all waters through 8 pm. This flow regime will weaken Tuesday, with persistent high pressure ridging over waters expected through mid to late week thereafter.
Gulf stream -
the approximate location of the west wall of the gulf stream as of may 18, 2024 at 1200 utc - .
64 nautical miles east of flagler beach. 73 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 101 nautical miles east southeast of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 201801 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 201 PM EDT Mon May 20 2024

New NEAR TERM, SHORT TERM, LONG TERM, MARINE

NEAR TERM
Issued at 157 PM EDT Mon May 20 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

Rest of this afternoon/evening...Breezy northeast flow will continue scattered showers along the NE FL Atlantic Coastal counties with isolated thunderstorm potential over inland NE FL during peak heating into the middle 80s, but overall rainfall and storm threat remains on the low side and will quickly fade around sunset.

Tonight...As Northeast flow weakens slowly, this will allow for skies to clear over inland areas with with a slight chance of a shower along the coast through the night. Mostly skies are expected overnight with lows in the lower/middle 60s inland with patchy fog possible towards sunrise, while lows in the upper 60s expected along the coast.

SHORT TERM
(Tuesday through Wednesday night)
Issued at 157 PM EDT Mon May 20 2024

High pressure near the Mid Atlantic Coast will continue to wedge ridging southwestward across most of the region Tuesday, as a very slow moving upper low lingers well offshore. This will continue an onshore flow pattern for Tuesday, and therefore another round of isolated to scattered showers moving onshore. Since the low will nudge further east compared to today, expecting chances for showers and perhaps an isolated rumble of thunder to be confined to areas furthest south and east. Though a few sprinkles cannot be ruled out as far north as coastal southeast GA. High temps will remain below average towards the coast in the low to mid 80s, as inland areas moderate to the mid to upper 80s. Onshore flow drops off overnight Tuesday with lows closer to normal expected, generally low to mid 60s and closer to 70 by the coast.

The aforementioned upper low continues to pinwheel further offshore Wednesday and Wednesday Night as high pressure ridging starts to build more aloft in addition to surface ridging, therefore expecting this period to remain dry. Cannot fully rule out an isolated shower to pop up diurnally over inland northeast FL during the afternoon and evening given some lingering onshore flow and low level moisture. However, given the subsidence in place, chances for this will be very low (around 10% or less).
Highs start to moderate closer to normal on Wednesday, in the upper 80s to low 90s except for near the coast. MAinly clear and dry into Wednesday Night as well with lows generally in the mid to upper 60s.

LONG TERM
(Thursday through next Monday)
Issued at 157 PM EDT Mon May 20 2024

Not much change to the pattern for Thursday and into Friday as high pressure ridging persists and high temps continue to moderate towards near to slightly above normal. A shortwave trough moves across the area on Friday Night and Saturday, which returns chances for showers and thunderstorms, though does not look like a significant event at this time. Surface high pressure moves offshore late this weekend as a more zonal pattern aloft also looks to take shape, with a more seabreeze shower/t'storm type of pattern likely. Temps are expected to remain slightly above normal for the start of Memorial Day weekend.

AVIATION
(18Z TAFS)
Issued at 1241 PM EDT Mon May 20 2024

A few brief MVFR CIGS leftover at NE FL TAF sites until the 19-21Z time frame as isolated showers (VCSH) continue, but will fade quickly in the 21-24Z time frame towards sunset with conds becoming VFR at all TAF sites with decreasing NE winds and skies becoming mostly clear. Cooler overnight lows in the 60s inland will support some patchy MVFR fog at VQQ/GNV around sunrise, otherwise expect some brief MVFR CIGS at coastal TAF sites during the mid-late morning diurnal heating hours as NE winds slowly increase in the 13-16Z time frame, but might be too early to introduce with this TAF package.

MARINE
Issued at 157 PM EDT Mon May 20 2024

Brisk northeasterly flow continues through this evening as high pressure ridging continues to build in. Small Craft Advisories remain in effect for all waters through 8 PM. This flow regime will weaken Tuesday, with persistent high pressure ridging persisting through mid to late week thereafter.

Rip Currents: Moderate to High risk of rip currents expected the rest of Today and into Tuesday as gusty onshore flow continues through tonight and slowly subsides on Tuesday.

PRELIMINARY POINT TEMPS/POPS
AMG 61 87 62 89 / 0 0 0 0 SSI 69 80 70 83 / 0 0 0 0 JAX 64 83 67 87 / 0 20 0 10 SGJ 67 83 70 85 / 10 30 0 10 GNV 62 86 65 90 / 0 30 0 10 OCF 63 88 67 91 / 0 30 0 10

JAX WATCHES/WARNINGS/ADVISORIES
FL...High Rip Current Risk until 8 PM EDT this evening for FLZ124-125- 133-138.

GA...High Rip Current Risk until 8 PM EDT this evening for GAZ154-166.

AM...Small Craft Advisory until 8 PM EDT this evening for AMZ450-452- 454-470-472-474.

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St. Augustine
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Mon -- 01:03 AM EDT     0.56 feet Low Tide
Mon -- 04:32 AM EDT     Moonset
Mon -- 06:28 AM EDT     Sunrise
Mon -- 06:50 AM EDT     3.70 feet High Tide
Mon -- 12:59 PM EDT     0.27 feet Low Tide
Mon -- 05:47 PM EDT     Moonrise
Mon -- 07:17 PM EDT     4.64 feet High Tide
Mon -- 08:14 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

St. Augustine, city dock, Florida, Tide feet

East Tocoi
Click for Map
Mon -- 01:05 AM EDT     0.96 feet High Tide
Mon -- 04:33 AM EDT     Moonset
Mon -- 06:29 AM EDT     Sunrise
Mon -- 08:20 AM EDT     0.27 feet Low Tide
Mon -- 01:25 PM EDT     0.84 feet High Tide
Mon -- 05:48 PM EDT     Moonrise
Mon -- 08:15 PM EDT     Sunset
Mon -- 08:16 PM EDT     0.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

East Tocoi, St. Johns River, Florida (4), Tide feet

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Jacksonville, FL,