Sunrise 6:47 AM   Sunset 7:59 PM Moonrise 6:57 PM   Moonset 5:31 AM

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AMZ452 Expires:202404232115;;228665 Fzus52 Kjax 230835 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 435 am edt Tue apr 23 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.
amz450-452-454-232115- 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- 435 am edt Tue apr 23 2024
.small craft exercise caution - .
Today - Northeast winds 10 to 15 knots, becoming east 5 to 10 knots in the afternoon. Seas 4 to 6 feet with a dominant period 9 seconds. Intracoastal waters a moderate chop. Tonight - Southeast winds 5 to 10 knots, becoming south after midnight. Seas 3 to 5 feet with a dominant period 9 seconds. Intracoastal waters light chop. Wednesday - South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet with a dominant period 9 seconds. Intracoastal waters a moderate chop. Wednesday night - South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 3 to 4 feet with a dominant period 9 seconds. Intracoastal waters a moderate chop. Thursday - Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet with a dominant period 10 seconds. Intracoastal waters light chop. Thursday night - Southeast winds 5 to 10 knots. Seas 2 to 3 feet with a dominant period 10 seconds. Intracoastal waters light chop. Friday - East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Friday night - East winds 10 to 15 knots. Seas 2 to 3 feet. Saturday - East winds 10 to 15 knots. Seas 3 to 4 feet. Saturday night - East winds around 15 knots. Seas 3 to 5 feet.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 435 Am Edt Tue Apr 23 2024
Synopsis -
high pressure will build over the local waters Tuesday and Wednesday as winds and seas subside. A front approaches from the north Wednesday night into Thursday, and begins to stall near the local georgia waters. This front will shift westward across the local waters late Thursday into Friday, then high pressure will strengthen northeast of the region Friday into the weekend with a return of stronger easterly winds and building seas.
Gulf stream -
the approximate location of the west wall of the gulf stream as of apr 20, 2024 at 1200 utc - .
69 nautical miles east northeast of flagler beach. 73 nautical miles east of saint augustine beach. 87 nautical miles east southeast of jacksonville beach. 105 nautical miles east of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 230652 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 252 AM EDT Tue Apr 23 2024

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

NEAR TERM
(Today through Tonight)
Issued at 230 AM EDT Tue Apr 23 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

High pressure will continue to build to the northeast today, allowing for onshore winds to develop and sunny skies. High temperatures will remain below normal today, but will be able to rebound to a few degrees warmer than Monday, with highs in the 70s area-wide.
Tonight, low temperatures will fall into the 50s, with warmer temps along the coast.

SHORT TERM
(Wednesday through Thursday night)
Issued at 230 AM EDT Tue Apr 23 2024

A mid to upper level trough will move through the northeast U.S.
and Mid Atlantic states Wed-Thu, with an associated cold front slowly working its way southward toward our area for Thursday. The sfc high will in turn shift southward on Wed certain to bring warmer temps to the area as more southwest to south low level develops. For Thursday, the weak cold front looks to move to the Altamaha River Basin Thursday morning and slowly drift southward while losing some of it identity per thickness fields, given the fact that upper level support wanes as the mid level trough will move away from the area and ridging builds in aloft. PWATs near 1 to 1.25 inches and some forcing along the front may spark an isolated shower but overall dry for nearly all locations. The front may drop to the FL/GA state line by Thu night and stall.
Isolated showers will be possible over the north parts of coastal waters along the front based on blend of the guidance.

With mostly clear skies and fairly light winds, highs in the lower 80s most areas on Wed, and then lower to mid 80s for Thu. Lows continue to trend upwards by Wed night at about 55-60, and around 60 or lower 60s for Thu night. Atlantic sea breeze will keep max temps there a bit cooler each day.

LONG TERM
(Friday through Monday)
Issued at 230 AM EDT Tue Apr 23 2024

On Friday, high pressure at around 1032 mb will be centered over the northeast U.S. with high pressure ridge/wedge down into the srn Appalachians and into north GA. The frontal boundary looks pretty diffuse over the area with only weak convergence noted near the central and north parts of the area. There is some moisture to work with for potential isolated showers, and so for now will leave POPs low at around 10-15 percent for central and northern zones as models are relatively dry on precip amounts. The flow will be onshore/easterly and breezy at times, esp for the coast.

For the weekend, any semblance of a front across the area lifts to the north given high pressure ridge at the sfc and aloft is over the area. This should result in stable conditions and staying mostly dry and warm, though can't rule out a stray marine shower near the coast and adjacent waters. Temperatures are expected to be near and slightly above the seasonal average into Monday. Given the prevailing east- southeast flow, the inland areas will see the warmest daytime temps, in the mid to upper 80s, while the coast staying mostly near 80 or lower 80s. The next cold frontal system approaches the southeast states on Monday, but looks like best forcing with an associated upper level trough is pretty far removed from our forecast area, so warm and dry conditions continue for Monday.

AVIATION
(06Z TAFS)
Issued at 107 AM EDT Tue Apr 23 2024

VFR conditions are expected through the TAF period at all six sites with partly cloudy skies and easterly winds.

MARINE
Issued at 230 AM EDT Tue Apr 23 2024

High pressure will build over the local waters today through Wednesday and result in winds and seas to subside. A front approaches from the north Wednesday night into Thursday, and begins to stall near the local Georgia waters. This front will shift westward across the local waters late Thursday into Friday, then high pressure will strengthen northeast of the region Friday into the weekend with a return of stronger easterly winds and building seas.

Rip Currents: Moderate to high risk for area beaches, with the highest risk for northeast FL Beaches today. Somewhat lower chances for rips on Wednesday and at least at moderate levels.

FIRE WEATHER
Issued at 230 AM EDT Tue Apr 23 2024

Min RH values expected in the upper 20s to around 30 over southeast GA and mostly in the lower 30 percent range for northeast FL today. Min RH Values may be slightly higher for Wed. For both days, winds and RH values don't meet criteria for red flags.
Dispersions may be slightly high for Wed aftn for north parts of the area near 70-75.

PRELIMINARY POINT TEMPS/POPS
AMG 75 50 81 57 / 0 0 0 0 SSI 70 58 78 61 / 0 0 0 0 JAX 73 53 82 57 / 0 0 0 0 SGJ 72 57 79 59 / 0 0 0 0 GNV 78 53 82 55 / 0 0 0 0 OCF 79 54 83 57 / 0 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES
FL...High Rip Current Risk through this evening for FLZ124-125-133- 138.

GA...None.
AM...Small Craft Advisory until 4 AM EDT early this morning for AMZ452-454.

Small Craft Advisory until 3 PM EDT this afternoon for AMZ470- 472-474.

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Pablo Creek
Click for Map
Tue -- 04:09 AM EDT     0.17 feet Low Tide
Tue -- 06:30 AM EDT     Moonset
Tue -- 06:49 AM EDT     Sunrise
Tue -- 10:27 AM EDT     3.56 feet High Tide
Tue -- 04:05 PM EDT     0.05 feet Low Tide
Tue -- 07:51 PM EDT     Full Moon
Tue -- 07:57 PM EDT     Moonrise
Tue -- 07:58 PM EDT     Sunset
Tue -- 10:42 PM EDT     4.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Pablo Creek, ICWW bridge, St. Johns River, Florida, Tide feet

St. Johns River Entrance
Click for Map
Tue -- 01:50 AM EDT     -2.06 knots Max Ebb
Tue -- 05:26 AM EDT     0.00 knots Slack
Tue -- 06:30 AM EDT     Moonset
Tue -- 06:49 AM EDT     Sunrise
Tue -- 07:53 AM EDT     1.75 knots Max Flood
Tue -- 10:55 AM EDT     -0.00 knots Slack
Tue -- 01:35 PM EDT     -1.90 knots Max Ebb
Tue -- 05:13 PM EDT     0.00 knots Slack
Tue -- 07:51 PM EDT     Full Moon
Tue -- 07:56 PM EDT     Moonrise
Tue -- 07:58 PM EDT     2.24 knots Max Flood
Tue -- 07:58 PM EDT     Sunset
Tue -- 11:16 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

St. Johns River Entrance, Florida Current, knots

Full Color Weather Map

Link to Loop


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