Sunrise 6:42 AM   Sunset 8:01 PM Moonrise 12:00 AM   Moonset 9:56 AM

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AMZ454 Expires:202404300615;;328753 Fzus52 Kjax 291752 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 152 pm edt Mon apr 29 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.
amz450-452-454-300615- 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- 152 pm edt Mon apr 29 2024
Rest of today - Southeast winds around 15 knots. Seas 3 to 4 feet with a dominant period 8 seconds. Intracoastal waters a moderate chop.Tonight - Southeast winds around 15 knots. Seas 3 to 5 feet with a dominant period 8 seconds. Intracoastal waters a moderate chop.Tuesday - South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet with a dominant period 6 seconds. Intracoastal waters a moderate chop. Tuesday night - South winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 6 seconds. Intracoastal waters a moderate chop. A slight chance of Thunderstorms. A slight chance of rain in the evening, then a slight chance of showers after midnight. Wednesday - South winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet with a dominant period 6 seconds. Intracoastal waters light chop. A slight chance of showers and Thunderstorms in the afternoon. Wednesday night - South winds 5 to 10 knots, becoming southwest after midnight. Seas 2 to 3 feet with a dominant period 11 seconds. Intracoastal waters light chop. A slight chance of showers and Thunderstorms in the evening. Thursday - Southeast winds 5 to 10 knots. Seas around 2 feet. Thursday night - East winds 5 to 10 knots. Seas around 2 feet. Friday - East winds 5 to 10 knots. Seas 2 to 3 feet. Friday night - Southeast winds around 10 knots. Seas 2 to 3 feet.
winds and waves higher in and near Thunderstorms.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 152 Pm Edt Mon Apr 29 2024
Synopsis -
high pressure centered off the carolina coast will weaken and shift eastward tonight and Tuesday as a weakening frontal boundary enters the southeastern states. Breezy southeast winds and elevated seas will prevail through tonight before prevailing winds shift to southerly by Tuesday morning. Isolated showers and Thunderstorms may develop over our local waters on Tuesday and Wednesday as the dissipating frontal boundary moves over our area. Another high pressure center will then build over coastal new england late this week, resulting in onshore winds redeveloping over our local waters. A cold front is then expected to enter the southeast states by Saturday night and Sunday, possibly bringing a chance of showers and Thunderstorms to our region by late in the upcoming weekend.
Gulf stream -
the approximate location of the west wall of the gulf stream as of apr 27, 2024 at 1200 utc - .
50 nautical miles east of flagler beach. 59 nautical miles east of saint augustine beach. 68 nautical miles east of jacksonville beach. 78 nautical miles east of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 291806 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 206 PM EDT Mon Apr 29 2024

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

NEAR TERM
Issued at 200 PM EDT Mon Apr 29 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

Sfc high pressure near the Carolina coast will shift southeastward through tonight and allow our low level winds to veer. In addition, a shortwave trough in the mid levels will approach the region from the west which will shift mid levels more out of the south. A decent amount of low level moisture is apparent in the NAM and GFS progs, generally seeing mean RH values of 65-80 percent range.
This should support periods of scattered to occasional broken fairly weather cumulus. There may be a couple of showers that skirt across our southwest zones this evening but will be short- lived. Otherwise, mild overnight lows in the 60s are anticipated with light southeast.

SHORT TERM
(Tuesday through Wednesday night)
Issued at 200 PM EDT Mon Apr 29 2024

Tuesday, a weak upper level trough makes its way into the area providing some instability to the region. High pressure off the Atlantic coast will move further east through the week shifting winds to southerly and allowing the Gulf coast and Atlantic sea- breeze to make their way inland in the afternoon, converging along US 17. This convergence along with the weak upper level instability provides slight chances (15-25%) for rain and storms in the afternoon and evening with higher chances for SE GA (35-40%).
Temperatures will be in the mid to upper 80s inland staying cooler along the coast. Overnight lows will be in the mid 60s.

Wednesday, The weak upper level tough has moved east and a surface high approaches from the west shifting winds to northerly by the afternoon as it approaches. Northerly winds will allow for the sea-breeze from the Gulf and Atlantic to make its way inland again and converge but with the absence of some upper level instability, rain chances will be a bit lower especially for SE GA. Expect temperatures in the upper 80s inland with temperatures in the mid 80s along the coast.

LONG TERM
(Thursday through next Monday)
Issued at 200 PM EDT Mon Apr 29 2024

The upper level ridge continues to build into the area into Friday drying out the air aloft and reducing the chances for any precipitation for Thursday and Friday. Mostly clear skies will allow temperatures to reach into the upper 80s and low 90s Thursday.
Mostly cloudy skies Friday will keep temperatures in the upper 80s, remaining in the low to mid 80s along the coast.

Chances increase for isolated afternoon showers and thunderstorms for the weekend as an upper level trough makes its way through the region and a cold front pushes more moisture into the area from the west. Temperatures will be in the mid to upper 80s inland with overnight lows will be in the low to mid 60s.

AVIATION
(18Z TAFS)
Issued at 128 PM EDT Mon Apr 29 2024

VFR will continue to dominate through early Tuesday afternoon. Mainly few-sct cumulus this afternoon at 4-5 kft with periods of broken deck possible for brief times. A very isolated shower possible late this afternoon/evening and would be southwest/west of GNV beyond 10 miles form the terminal. Some MVFR vsby is possible at VQQ in light mist late tonight. Sfc winds will be east to southeast at 10-15 kt and gusty rest of the aftn, and becoming more southerly tonight and Tuesday morning while decreasing.

MARINE
Issued at 200 PM EDT Mon Apr 29 2024

Breezy southeast winds will continue into Tuesday morning and then become more southerly into Wed as a weak frontal system moves into the region. A few showers or a thunderstorm possible Tue into Wed, mainly offshore waters, associated with the weak frontal system/upper level disturbance moving into the area. Otherwise, winds mostly up to about 15 kt and seas near 3-5 ft, possible touching 15-20 kt and seas up to 4-6 ft briefly but no headlines anticipated at this time. A cold front is then expected to enter the southeast states by Saturday night and Sunday, possibly bringing a chance of showers and thunderstorms to our region by late in the upcoming weekend.

Rip Currents: Breezy onshore winds and elevated surf conditions will create a high end moderate rip current risk at all area beaches rest of today. A moderate risk will likely continue on Tuesday as breezy onshore winds develop during the afternoon hours and breaker heights remain similar to today. The risk may decrease towards midweek as surf heights subside.

PRELIMINARY POINT TEMPS/POPS
AMG 61 86 65 87 / 10 40 30 20 SSI 66 81 66 83 / 0 20 20 20 JAX 63 86 65 88 / 0 20 20 20 SGJ 66 84 66 87 / 0 20 10 20 GNV 62 87 63 87 / 10 20 0 30 OCF 63 87 63 88 / 20 10 10 30

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

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