Sunrise 6:37 AM   Sunset 8:08 PM Moonrise 2:50 AM   Moonset 2:22 PM

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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- 317 Am Edt Fri May 3 2024
Today - Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds. Intracoastal waters light chop. Tonight - Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 6 seconds. Intracoastal waters light chop. Saturday - Southeast winds 5 to 10 knots. Seas around 2 feet. Wave detail: southeast 2 feet at 5 seconds. Intracoastal waters light chop. A slight chance of showers and Thunderstorms in the afternoon. Saturday night - Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 5 seconds. Intracoastal waters light chop. A slight chance of showers and Thunderstorms. Sunday - Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of Thunderstorms. Sunday night - Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 6 seconds. Intracoastal waters a moderate chop. A slight chance of showers and Thunderstorms in the evening. Monday - South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers with a slight chance of Thunderstorms. Monday night - South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Tuesday - South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Tuesday night - South winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop.
winds and waves higher in and near Thunderstorms.

AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 317 Am Edt Fri May 3 2024
Synopsis -
high pressure will remain anchored northeast of the local waters through the weekend. Afternoon sea breeze development will continue each afternoon for the next several days as high pressure repositions further south, shifting winds toward a southeasterly direction next week. Winds should trend offshore toward the end of next week as a cold front approaches from the northwest.
Gulf stream -
the approximate location of the west wall of the gulf stream as of may 02, 2024 at 1200 utc - .
71 nautical miles east of flagler beach. 85 nautical miles east southeast of saint augustine beach. 92 nautical miles east northeast of jacksonville beach. 86 nautical miles east of st simons island.
this data courtesy of the naval oceanographic office.

FXUS62 KCHS 030739 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 339 AM EDT Fri May 3 2024

SYNOPSIS
Atlantic high pressure will remain across the Southeast through much of next week.

NEAR TERM /THROUGH TONIGHT/
This morning: Satellite imagery, surface observations, and webcams showing some fog and stratus developing across parts of the area. This is a little later than it was yesterday morning, and also there is less coverage so far. However, there is a strong inversion just off the surface, and with dew point depressions down near or at zero, the fog will expand in coverage. Since we're still not certain that there will be enough dense fog, no Dense Fog Advisory has been issued. The fog (whether it's dense or not) will dissipate by 9-10 am since the depth of the fog is somewhat shallow.

Today: The mid level ridging of recent days will shift off the coast of the Southeast, while Atlantic high pressure is the main feature at the surface. The synoptic flow is southeasterly through the day, resulting in a sea breeze dominant regime.
After fog dissipates, scattered to broken cumulus will prevail, while varying amounts of cirrus clouds pass through. There will certainly be sufficient insolation, and temperatures will be very similar to yesterday. We didn't go quite as warm as the 1000-850 mb thickness progs, but with a blend of the MOS and NBM, we arrive at highs in the mid and upper 80s. Coastal sections will be 5-10F cooler.

A subtle level level impulse will approach from the west- southwest late in the day, and this will cause isolated to scattered convection upstream from our Georgia counties to approach. There will be some interaction of this activity with the inland moving sea breeze after 3 or 4 pm, where we show slight chance PoPs close to and west of the US-301 corridor (Allendale to Tattnall County). There is little buoyancy, plus limited MLCAPE and shear, so no strong or severe storm will occur.

Tonight: A better looking short wave trough moves through the Tennessee Valley and northern Gulf coast. This along with any outflow boundaries from prior convection in and near the area, will allow for isolated or scattered showers and a few t-storms to occur. This is mainly far inland sections. There will be at least some form of fog again after midnight given the southeast and south flow in the boundary layer. However, there is likely too much mid and high level clouds from the nearby convection for dense fog to occur. We currently have mention of the "patchy" fog qualifier, and we will monitor for any dense fog potential. Low temperatures will be several degrees above climo.

SHORT TERM /SATURDAY THROUGH MONDAY/
A mid-level ridge axis will push off the Southeast coast Saturday with passing waves of shortwave energy across the region through the short term forecast period. High pressure will remain the primary feature at the surface. Convection should be a bit more active over the weekend and into Monday with the presence of deeper moisture as PWATs increase to 1.5+ inches. Coverage of showers/thunderstorms will be highest in the daytime when instability is maximized, but with some upper forcing in play activity could linger into the overnight period. The greatest chances are focused away from the immediate coast owing to a progressive sea breeze.

High temperatures will generally peak in the low to mid 80s over the weekend, warming into the mid to upper 80s Monday. Overnight lows are only expected to drop to the mid to upper 60s, with locations right along the beaches and Downtown Charleston near 70 degrees.

LONG TERM /MONDAY NIGHT THROUGH THURSDAY/
Atlantic high pressure will persist through the middle of next week.
Chances for showers/thunderstorms are limited Tuesday as weak forcing/remnant shortwave energy passes offshore the Mid Atlantic coast. Beyond Tuesday, rainfall chances are little to none as a ridge rebuilds overhead. This will allow max temperatures to rise into the low/mid 90s by mid next week, possibly approaching record levels by Wednesday/Thursday.

AVIATION /07Z FRIDAY THROUGH TUESDAY/
KCHS/KJZI/KSAV: Fog and stratus are still expected to occur during the pre-dawn through mid morning, and dense fog and conditions down near or below airfield minimums are possible for several hours. Expect there to be updates, but for now we have the worst conditions at all terminals between 09Z and 13Z.
It's possible that with a southeast synoptic flow, the fog and stratus might be mainly inland from KJZI.

VFR will return around 1300-1330Z, and continue into tonight.
There are no concerns for SHRA or TSRA at any the terminals with the 06Z TAFs.

Extended Aviation Outlook: Scattered showers and thunderstorms are possible through Monday.

MARINE
Today: High pressure from the Atlantic will be the main feature, and even with sea breeze influences this afternoon, SE winds will be no more than about 10 kt. Seas will be only around 2 feet. Even though it is light, the onshore flow will keep any land based fog off the Atlantic. The exceptions will be Charleston Harbor (especially the northern part of the harbor near the North Charleston Port) and the Port of Savannah, where some of the nearby fog from over the land could drift into those areas early this morning. At this time no Dense Fog Advisory is planned.

Tonight: Weak high pressure continues across the maritime community. Once again the SE winds are no more than about 10 kt, with seas just 2 feet. Maybe some fog could impact Charleston Harbor and the Port of Savannah, as it tries to expand in from nearby land sections.

Saturday through Wednesday: Atlantic high pressure will maintain benign conditions over the local waters. Southerly winds in the morning will back out of the southeast during the afternoon and evening hours nearly each day as the sea breeze develops. Winds will average 10-15 kt with seas 2-3 ft.

CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...None.

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Jones Creek entrance
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Fri -- 03:50 AM EDT     Moonrise
Fri -- 05:22 AM EDT     7.48 feet High Tide
Fri -- 06:38 AM EDT     Sunrise
Fri -- 11:05 AM EDT     0.11 feet Low Tide
Fri -- 03:22 PM EDT     Moonset
Fri -- 05:53 PM EDT     7.62 feet High Tide
Fri -- 08:06 PM EDT     Sunset
Fri -- 11:32 PM EDT     0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Jones Creek entrance, Hampton River, Georgia, Tide feet

Old Tower
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Fri -- 03:50 AM EDT     Moonrise
Fri -- 04:31 AM EDT     7.13 feet High Tide
Fri -- 06:37 AM EDT     Sunrise
Fri -- 11:05 AM EDT     0.10 feet Low Tide
Fri -- 03:22 PM EDT     Moonset
Fri -- 05:02 PM EDT     7.25 feet High Tide
Fri -- 08:06 PM EDT     Sunset
Fri -- 11:32 PM EDT     0.27 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Old Tower, Sapelo Island, Georgia, Tide feet

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