Sunrise 6:52 AM   Sunset 7:58 PM Moonrise 3:22 PM   Moonset 3:48 AM

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AMZ450 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- 227 Pm Edt Fri Apr 19 2024
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- 227 Pm Edt Fri Apr 19 2024
Synopsis -
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.
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 191723 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 123 PM EDT Fri Apr 19 2024

New AVIATION

UPDATE
Issued at 1047 AM EDT Fri Apr 19 2024

No substantial changes with this update. Near record temperatures and potentially a few sprinkles are possible along the sea breeze north of Jacksonville this afternoon as a weak shortwave continues to ride atop the ridge aloft. Temperatures will quickly soar into the upper 80s and low 90s this afternoon. Stay hydrated and keep cool!

For the latest NE FL and SE GA Daily Key Messages please visit: https:// www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf

NEAR TERM
Issued at 259 AM 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 east of the area will dominate the local weather pattern today and tonight with just some high cirrus across the region. High temperatures will generally be in the lower 90s except in the upper 70s to lower 80s along the coast as a sea breeze develops this afternoon. Overnight temperatures will be in the lower to mid 60s inland and in the mid to upper 60s for the beaches.

SHORT TERM
(Saturday through Sunday night)
Issued at 259 AM EDT Fri Apr 19 2024

A cold front will slowly sink southward into Georgia on Saturday, prompting scattered showers and embedded isolated thunderstorms across southeast Georgia. By Sunday, the front will be lingering near the Florida/Georgia state border, allowing for precipitation potential to spread southward through the Gainesville/St.
Augustine line. Again, scattered thunderstorms will be likely throughout the day Sunday, and through the overnight hours area- wide.

Temperatures will be well above normal this weekend, with SE GA and NE FL seeing high temperatures in the upper 80s to lower 90s Saturday, including beach side due to southerly winds. 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
(Monday through Thursday)
Issued at 259 AM EDT Fri Apr 19 2024

By Monday, the front will be south of the area, leaving the rest of the week dry as high pressure builds behind the front. As the front passes through on Monday, scattered showers and thunderstorms will be likely area-wide, along with below normal temperatures for most of the region. Highs in SE GA will stay in the upper 60s to lower 70s, with high temperatures in the 70s across NE FL. Each day of the week will get gradually warmer, by Wednesday highs will be in the 80s area-wide.

AVIATION
(18Z TAFS)
Issued at 123 PM EDT Fri Apr 19 2024

Light westerly winds at or below 10 kts continue inland while the sea breeze brings easterly winds at a similar magnitude to coastal sites. VFR conditions prevail for most airfields throughout the period. The exception will be GNV where a mix of low stratus and fog, likely at LIFR, advect from west to east overnight. Chances for this stratus to reach the I-95 corridor/Jacksonville Metro are low (<10%). VFR cumulus and light westerly flow resumes Saturday ahead of a weak frontal boundary.

MARINE
Issued at 259 AM EDT Fri Apr 19 2024

Weak high pressure ridging continues over local waters through Friday as a weak trough passes just to the north. By Saturday, a cold frontal boundary will approach the region and stall along the FL/GA line before making its way through Sunday through Monday with chances for showers and thunderstorms returning. High pressure then builds across area waters once again Tuesday and into Wednesday.

Rip Currents: Moderate rip current risk for NE FL and SE GA beaches through at least Saturday.

CLIMATE
Issued at 247 AM EDT Wed Apr 17 2024

Max temps around 90 degrees can be expected at local climate sites on Friday 4/19 and Saturday 4/20 and will be close record levels.

Record High Record High Average First Date Friday 4/19 Saturday 4/20 to Reach >= 90F

Jacksonville, FL (JAX) 92/1995 92/1995 April 25 Craig Field, FL (CRG) 91/2013 91/2002 April 22 Gainesville, FL (GNV) 94/2011 94/1892 April 21 Alma, Georgia (AMG) 91/1968 93/1968 May 2

PRELIMINARY POINT TEMPS/POPS
AMG 90 66 90 65 / 10 0 30 20 SSI 85 67 86 66 / 10 0 20 20 JAX 91 65 92 65 / 20 10 20 10 SGJ 87 64 91 65 / 0 0 0 10 GNV 90 61 90 62 / 0 0 0 0 OCF 90 61 89 62 / 0 0 0 0

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

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St. Marys
Click for Map
Fri -- 12:53 AM EDT     1.06 feet Low Tide
Fri -- 04:48 AM EDT     Moonset
Fri -- 06:53 AM EDT     Sunrise
Fri -- 07:09 AM EDT     5.59 feet High Tide
Fri -- 01:19 PM EDT     0.94 feet Low Tide
Fri -- 04:20 PM EDT     Moonrise
Fri -- 07:38 PM EDT     5.67 feet High Tide
Fri -- 07:57 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

St. Marys, St. Marys River, Florida, Tide feet

St. Johns River Entrance
Click for Map
Fri -- 02:19 AM EDT     0.00 knots Slack
Fri -- 04:47 AM EDT     Moonset
Fri -- 05:12 AM EDT     1.49 knots Max Flood
Fri -- 06:53 AM EDT     Sunrise
Fri -- 08:06 AM EDT     -0.00 knots Slack
Fri -- 11:36 AM EDT     -1.78 knots Max Ebb
Fri -- 02:45 PM EDT     0.00 knots Slack
Fri -- 04:20 PM EDT     Moonrise
Fri -- 05:58 PM EDT     1.57 knots Max Flood
Fri -- 07:56 PM EDT     Sunset
Fri -- 08:42 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

St. Johns River Entrance, Florida Current, knots

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Jacksonville, FL,