Sunrise 6:44 AM   Sunset 8:03 PM Moonrise 11:00 PM   Moonset 8:00 AM

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AMZ452 Expires:202404270930;;434347 Fzus52 Kjax 270016 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 816 pm edt Fri apr 26 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.
amz450-452-270930- coastal waters from altamaha sound to fernandina beach fl out 20 nm- coastal waters from fernandina beach to st. Augustine fl out 20 nm- 816 pm edt Fri apr 26 2024
Rest of tonight - East winds 10 to 15 knots. Seas 2 to 4 feet with a dominant period 5 seconds. Intracoastal waters a moderate chop. A slight chance of showers after midnight. Saturday - East winds around 15 knots. Seas 3 to 5 feet with a dominant period 7 seconds. Intracoastal waters a moderate chop. A slight chance of showers. 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 6 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 10 to 15 knots. Seas 3 to 4 feet with a dominant period 7 seconds. Intracoastal waters a moderate chop. Monday night - Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas 3 to 4 feet with a dominant period 7 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. Tuesday night - South winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 3 to 4 feet. Wednesday - South winds 5 to 10 knots. Seas 2 to 3 feet. Wednesday night - South winds 5 to 10 knots. Seas 2 to 3 feet.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 816 Pm Edt Fri Apr 26 2024
Synopsis -
high pressure will be located to the northeast of the region through Saturday night, with coastal troughing leading to elevated conditions. The high will build to the east of the region Sunday through Tuesday. A cold front will move southeast across the area Tuesday night through Wednesday.
Gulf stream -
the approximate location of the west wall of the gulf stream as of apr 25, 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. 90 nautical miles east southeast of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 262300 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 700 PM EDT Fri Apr 26 2024

New AVIATION

UPDATE
Issued at 519 PM EDT Fri Apr 26 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 be northeast of the region through Saturday. Weak inverted troughs are expected to develop in this pattern overnight and through Saturday, which will provide for convergent bands to develop over the waters, and move ashore.
Typically these showers will weaken over land, as they move away from the source of convergence. Have increased precipitation chances at the coast overnight through Saturday, to account for these bands. The greatest chance will be over NE FL, based on expected location of troughing.

Have seen light ot moderate showers develop over the waters this afternoon in weak troughing, and even more convergence in troughing will be present for shower generation overnight into Saturday, hence the early update to reflect the greater chance for coastal showers.

NEAR TERM
Issued at 231 PM EDT Fri Apr 26 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

The weak cold front has stalled across the FL/GA line and will dissipate overnight. Pressure gradients between the low out west and the high pressure off the NE coast will begin to tighten as the low pushes east and the high shifts south along the coast creating breezy easterly winds. Increasing coverage of stratocumulus advecting off the Atlantic waters as well as a developing inverted trough will lead to partly to mostly cloudy skies today and overnight. Temperatures will be in the mid to upper 80s inland with temperatures in the upper 70s to low 80s along the coast with night time temperatures in the low to mid 60s inland and upper 60s to low 70s along the coast.

SHORT TERM
(Saturday through Sunday night)
Issued at 231 PM EDT Fri Apr 26 2024

The main concern over the weekend will be beach hazards as surf builds and breezy onshore flow yields a High rip current risk at all the area beaches.

A weak coastal trough over the local waters may push a few sprinkles into the immediate coast on Saturday morning but will be very isolated in nature. With the moistening onshore flow, skies will trend partly to mostly cloudy by Saturday, especially near the coast. Combination of increasing cloud cover and onshore flow will keeps highs in the low 80s inland while the coastal areas peak in the upper 70s to near 80 each day while overnight temps remain in the mild low/mid 60s.

High pressure to the northeast will gradually sink southward and weaken allowing winds to relax through Sunday while trending southeasterly. Cloud cover will begin to scatter out with temperatures similar to Saturday with continued component of onshore flow.

LONG TERM
(Monday through next Friday)
Issued at 231 PM EDT Fri Apr 26 2024

Ridging progged to initially hold steady through Monday 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
(00Z TAFS)
Issued at 655 PM EDT Fri Apr 26 2024

Prevailing VFR conditions forecast this period.

Could see a few showers moving ashore overnight possibly affecting KSGJ, then both KSGJ and KCRG through the day Saturday. Can not rule out a brief restriction if one of these showers pass right over the station. At this time though, the chance is too low to mention restrictions, so going with a VCSH remark.

MARINE
Issued at 231 PM EDT Fri Apr 26 2024

A frontal boundary along the FL/GA line has stalled over the northeast Florida waters and will dissipate tonight. Meanwhile, strong high pressure off the northeast coast will wedge down the coastline beginning this afternoon, resulting in strengthening onshore winds and building seas. Small Craft Advisory conditions develop early Saturday for offshore waters making it to the inland waters by the afternoon and into Saturday night. Caution conditions prevailing elsewhere across our local waters. High pressure will then shift southward while gradually weakening late this weekend, becoming anchored off the southeastern seaboard for much of next week. Winds and seas will gradually diminish from Sunday afternoon through the early portions of the upcoming week.

Rip Currents: Moderate Rip current risk continue continues at SE GA beaches today while High Risk is in play at NE FL beaches.
Increasing onshore winds and elevating surf will lead to High Risk of Rip Currents at all beaches through the weekend.

HYDROLOGY
Issued at 414 AM EDT Fri Apr 26 2024

Water levels along lower portions of the Santa Fe River have crested, but Moderate flooding near the Three Rivers Estates gauge will continue through Saturday night, 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, with minor flooding expected to continue through at least Tuesday. Water levels are expected to fall below flood stage along upper portions of the Suwannee River near the gauge at Suwannee Springs early this morning. Minor flooding will otherwise continue along most of the lower Suwannee River through the weekend.

PRELIMINARY POINT TEMPS/POPS
AMG 62 82 61 82 / 0 0 0 0 SSI 67 77 66 77 / 20 20 0 0 JAX 65 80 64 79 / 0 20 0 0 SGJ 67 79 67 79 / 20 30 0 0 GNV 61 81 61 82 / 0 0 0 0 OCF 62 83 62 82 / 0 10 0 0

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

GA...None.
AM...Small Craft Advisory from 2 PM Saturday to 5 AM EDT Sunday for AMZ454.

Small Craft Advisory from 5 AM Saturday to 5 AM EDT Sunday for AMZ470-472-474.

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Piney Point
Click for Map
Fri -- 01:33 AM EDT     6.56 feet High Tide
Fri -- 06:47 AM EDT     Sunrise
Fri -- 07:21 AM EDT     5.78 feet Low Tide
Fri -- 08:14 AM EDT     Moonset
Fri -- 01:17 PM EDT     6.48 feet High Tide
Fri -- 07:18 PM EDT     5.64 feet Low Tide
Fri -- 08:01 PM EDT     Sunset
Fri -- 10:59 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Piney Point, St. Johns River, Florida, Tide feet

St. Johns River Entrance
Click for Map
Fri -- 12:31 AM EDT     -0.00 knots Slack
Fri -- 03:14 AM EDT     -2.13 knots Max Ebb
Fri -- 06:46 AM EDT     Sunrise
Fri -- 07:30 AM EDT     0.00 knots Slack
Fri -- 08:12 AM EDT     Moonset
Fri -- 09:50 AM EDT     1.53 knots Max Flood
Fri -- 12:42 PM EDT     -0.00 knots Slack
Fri -- 03:22 PM EDT     -1.88 knots Max Ebb
Fri -- 06:59 PM EDT     0.00 knots Slack
Fri -- 08:00 PM EDT     Sunset
Fri -- 10:02 PM EDT     2.27 knots Max Flood
Fri -- 10:58 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

St. Johns River Entrance, Florida Current, knots

Full Color Weather Map

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