Sunrise 6:50 AM   Sunset 7:56 PM Moonrise 4:13 PM   Moonset 4:12 AM

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AMZ454 Expires:202404200945;;042793 Fzus52 Kjax 200031 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 831 pm edt Fri apr 19 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.
amz450-452-454-200945- 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- 831 pm edt Fri apr 19 2024
Rest of tonight - South winds 5 to 10 knots, becoming west after midnight. Seas 2 to 3 feet with a dominant period 8 seconds. Intracoastal waters light chop. Saturday - Southwest winds around 5 knots, becoming southeast in the afternoon. Seas 2 to 3 feet with a dominant period 8 seconds. Intracoastal waters light chop. Saturday night - Southwest winds 5 to 10 knots, becoming west after midnight. Seas 2 to 3 feet with a dominant period 8 seconds. Intracoastal waters light chop. A slight chance of showers and Thunderstorms in the evening. Sunday - West winds 5 to 10 knots. Seas 2 to 3 feet with a dominant period 8 seconds. Intracoastal waters light chop. A chance of showers with a slight chance of Thunderstorms in the afternoon. Sunday night - Northwest winds 10 to 15 knots. Seas 2 to 3 feet with a dominant period 8 seconds. Intracoastal waters a moderate chop. Showers likely with a chance of Thunderstorms in the evening, then a chance of showers with a slight chance of Thunderstorms after midnight. Monday - North winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet with a dominant period 5 seconds. Intracoastal waters choppy. A chance of showers with a slight chance of Thunderstorms. Monday night - North winds 15 to 20 knots. Seas 4 to 5 feet with a dominant period 7 seconds. Intracoastal waters choppy. A slight chance of showers and Thunderstorms in the evening. Tuesday - Northeast winds 10 to 15 knots. Seas 4 to 5 feet. Tuesday night - Northeast winds 5 to 10 knots. Seas 3 to 5 feet.Wednesday - North winds 5 to 10 knots, becoming east in the afternoon. Seas 3 to 4 feet. Wednesday night - South winds 5 to 10 knots, becoming southwest after midnight. 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- 831 Pm Edt Fri Apr 19 2024
Synopsis -
high pressure ridge will move to the southeast, as a frontal boundary settles into the area, near the ga/fl line. The boundary will then remain stalled there through Sunday, before moving to the southeast Sunday night into Monday. High pressure will build over the area on Tuesday.
a period of small craft advisory level conditions will be possible early next week.
gulf stream - .
the approximate location of the west wall of the gulf stream as of apr 13, 2024 at 1200 utc - .
69 nautical miles east northeast of flagler beach. 73 nautical miles east of saint augustine beach. 85 nautical miles east southeast of jacksonville beach. 103 nautical miles east southeast of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KJAX 192309 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 709 PM EDT Fri Apr 19 2024

New UPDATE, AVIATION

UPDATE
Issued at 706 PM EDT Fri Apr 19 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 ridge will move off to the southeast Tonight, as a cold front moves into region from the northeast. Low level moisture along and west of the I75 corridor could result in a period of fog toward dawn. This fog could briefly become dense. Passing high cloudiness forecast through the night. Lows Tonight in the lower to mid 60s expected.

NEAR TERM
Issued at 323 PM EDT Fri Apr 19 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

Unseasonably warm conditions continue under the influence of a dominating upper ridge. Temperatures continue to rise through the 80s and will challenge daily records across the region as peak temps read near 90F (daily records in the climate section below).

Otherwise fair weather reigns across NE FL and SE GA as abnormally warm temperatures drive a stubborn Atlantic sea breeze inland, which should reach the I-95 corridor before dissipating this evening. There is an outside chance of sprinkle north of Jacksonville along the SE GA coast this afternoon as better moisture, characterized by a cumulus Field, exists across GA.

Fair conditions continue into tonight as thin cirrus pushes through the ridge flow and a weakening front approaches from the northwest.
The primary focus tonight and early Saturday will an advective low stratus and fog event emanating from the Big Bend. Areas could become locally dense by sunrise Saturday, particularly across the Suwannee River valley and I-75 corridor, and it may require Dense Fog headlines.

SHORT TERM
(Saturday through Monday night)
Issued at 323 PM EDT Fri Apr 19 2024

Early morning fog will begin to clear during the early daylight hours on Saturday. By the afternoon, an increase in moisture over southeast Georgia from the approaching frontal boundary will bring scattered showers and chances for isolated thunderstorms. A Marginal risk of severe storms over northern southeast Georgia due to strong daytime heating and an increase in moisture, resulting in an unstable air mass, in which some isolated damaging wind gusts may occur as storms develop. Come Sunday, the cold front will begin to move through the area, with widespread showers and isolated storms expected. Instability is not expected to be as strong as Saturday, which will limit the the potential for any severe storms. As the cold front lingers over north central Florida, showers and isolated storms will remain for most of the day on Monday, clearing out by the overnight hours into Tuesday.

Above normal temperatures during the weekend, as SE GA and NE FL will see highs the upper 80s to lower 90s Saturday. Sunday will be a few degrees cooler, with highs in the mid to upper 80s across NE FL, and upper 70s to mid 80s across SE GA depending on the front's position.

SHORT TERM
(Saturday through Monday night)
Issued at 323 PM EDT Fri Apr 19 2024

Early morning fog will begin to clear during the early daylight hours on Saturday. By the afternoon, an increase in moisture over southeast Georgia from the approaching frontal boundary will bring scattered showers and chances for isolated thunderstorms. A Marginal risk of severe storms over northern southeast Georgia due to strong daytime heating and an increase in moisture, resulting in an unstable air mass, in which some isolated damaging wind gusts may occur as storms develop. Come Sunday, the cold front will begin to move through the area, with widespread showers and isolated storms expected. Instability is not expected to be as strong as Saturday, which will limit the the potential for any severe storms. As the cold front lingers over north central Florida, showers and isolated storms will remain for most of the day on Monday, clearing out by the overnight hours into Tuesday.

Above normal temperatures during the weekend, as SE GA and NE FL will see highs the upper 80s to lower 90s Saturday. Sunday will be a few degrees cooler, with highs in the mid to upper 80s across NE FL, and upper 70s to mid 80s across SE GA depending on the front's position.

LONG TERM
(Tuesday through next Friday)
Issued at 323 PM EDT Fri Apr 19 2024

High pressure will begin to build into the region in the cold front's wake, leading to dry weather becoming established through the remainder of the week. Temperatures will gradually warm through the upcoming week, with daytime Highs primarily in the mid 70s on Tuesday, rising to the 80s by midweek, and finally reaching again into the lower 90s by Thursday.

AVIATION
(00Z TAFS)
Issued at 706 PM EDT Fri Apr 19 2024

A period of fog is possible inland at KVQQ and KGNV toward dawn, otherwise prevailing VFR conditions expected Tonight. Prevailing VFR conditions are then expected through the day time hours on Saturday. Although, there is a potential for thunderstorms at KSSI during the afternoon hours.

MARINE
Issued at 323 PM EDT Fri Apr 19 2024

Weak high pressure ridging continues with prevailing offshore flow over local waters. Nearshore waters will experience a wind shift toward shore this afternoon as the sea breeze develops. A weak cold frontal approaches from the north Saturday, stall along the Florida Georgia state line, and accelerated southward Sunday through Monday.
Scattered thunderstorms will accompany the frontal passage this weekend. A low end surge of northeast winds will follow behind the front Monday then weaken and turn onshore Tuesday and Wednesday as high pressure then builds across area waters once again.

RIP CURRENTS:

Moderate risk of rip currents will be present through the weekend, particularly during the afternoon hours with sea breeze development.

PRELIMINARY POINT TEMPS/POPS
AMG 66 90 66 79 / 0 30 30 70 SSI 67 86 66 82 / 0 20 20 50 JAX 65 91 65 86 / 0 10 20 40 SGJ 64 91 64 88 / 0 10 10 20 GNV 61 90 62 84 / 0 10 0 20 OCF 61 89 62 84 / 0 0 0 10

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

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