Sunrise 6:37 AM   Sunset 8:04 PM Moonrise 12:01 AM   Moonset 9:47 AM

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AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 1103 Am Edt Mon Apr 29 2024
Rest of today - SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: E 3 ft at 7 seconds. Tonight - SE winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave detail: se 2 ft at 7 seconds and E 2 ft at 9 seconds. Tue - S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave detail: se 2 ft at 7 seconds and E 2 ft at 9 seconds. Tue night - S winds 10 to 15 kt. Seas 3 ft. Wave detail: se 3 ft at 6 seconds and E 2 ft at 10 seconds. A slight chance of showers and tstms. Wed - SW winds 5 to 10 kt, becoming S in the afternoon. Seas 3 ft. Wave detail: se 3 ft at 6 seconds and E 2 ft at 11 seconds. A slight chance of showers in the morning. Wed night - S winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: se 2 ft at 6 seconds and E 1 foot at 12 seconds. Thu - E winds 5 to 10 kt. Seas 2 to 3 ft. Thu night - SE winds 5 to 10 kt. Seas 2 ft. Fri - E winds 5 to 10 kt. Seas 2 ft. Fri night - SE winds 5 to 10 kt. Seas 2 to 3 ft.
winds and seas higher in and near tstms.

AMZ300 1103 Am Edt Mon Apr 29 2024
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - High pressure will prevail through much of the week. A weak disturbance will move through Tuesday and Wednesday, then a weak cold front will stall in the vicinity this weekend.

FXUS62 KCHS 291455 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1055 AM EDT Mon Apr 29 2024

SYNOPSIS
High pressure will prevail through much of the week. A weak disturbance will move through Tuesday and Wednesday, then a weak cold front will stall in the vicinity this weekend.

NEAR TERM /THROUGH TONIGHT/
Today: Aloft, the main axis of a mid-upper level ridge will be placed across the Southeast United States through much of the afternoon, then show signs of shifting offshore late as a trough shifts across parts of the Deep South. At the sfc, high pressure centered across the Atlantic will extend across the local area, favoring an onshore wind that slowly veers from east to south- southeast during the afternoon. Strong insolation throughout the day and 1000-850 mb thickness levels support max temps a few degrees warmer than the previous day, generally ranging in the low-mid 80s away from the coast. At the beaches, the onshore wind/seabreeze shifting inland will limit high temps to the mid-upper 70s.

Tonight: While the Atlantic high at the surface remains in control, the ridge aloft is nudged east in advance of a short wave that is initially near the ArkLaTex and reaches near the southern Appalachians late. There might be a few showers out near the Gulf Stream, but nothing over land areas. We'll be able to radiate decently early on, under mainly clear skies and light winds. But an increase in cirrus clouds with the short wave will arrive from the west late, and that along with the formation of some late night stratus, will prevent us from getting as cool as Monday morning. Lows will be mainly upper 50s and lower 60s, with middle 60s closer to the shore, and in the metro areas of Charleston, North Charleston, and Savannah. There remains enough boundary layer moisture to potentially produce some late night fog well inland, especially if stratus does occur.

SHORT TERM /TUESDAY THROUGH THURSDAY/
A pronounced upper shortwave will slowly move through the area Tuesday into Wednesday. A decent slug of moisture will accompany the feature with PWATs around 1.25". Surface-based CAPEs will be 500-1000 J/kg Tuesday and Wednesday. Isolated to scattered showers and tstms possible Tuesday and Tuesday night. The shortwave is expected to move off the coast by late Wednesday morning, however some guidance hints at a weak surface trough lingering over southern SC into Wednesday afternoon. There could be just enough moisture and convergence to support a few showers or tstms Wednesday afternoon, especially across the northern half of the area. Tuesday highs will be in the mid 80s and Wednesday will be mid/upper 80s.

Deep layered ridging will occur on Thursday, yielding a dry and toasty day with highs in the upper 80s to lower 90s.

LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/
The upper ridge will persist into Friday before pushing off the coast over the weekend. Then, a quasi-zonal flow will develop with a series of shortwaves rippling through. Greater coverage of mainly diurnal convection expected during this period. Above normal temps will persist with highs in the mid/upper 80s.

AVIATION /15Z MONDAY THROUGH FRIDAY/
KCHS/KJZI/KSAV: VFR through 12Z Tuesday. Any low stratus and/or patchy fog late tonight looks to occur well inland from all sites.

Extended Aviation Outlook: Prevailing VFR.

MARINE
Today and Tonight: High pressure centered across the western Atlantic will extend across region, maintaining quiet marine conditions across local waters. Even with a subtle boost from a seabreeze circulation, east winds veering to south-southeast will peak no higher than 10-15 kt. Seas will range between 2-4 ft, largest across offshore Georgia waters.

Atlantic high pressure will remain the dominant feature Tuesday through Saturday, with winds generally no higher than 10-15 kt and seas 2-4 ft. A moderate coastal sea breeze will develop each afternoon.

Rip Currents: A small swell every 9 or 10 seconds, and continued onshore winds, will result in a Moderate Risk of rip currents at all beaches today.

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

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Thunderbolt
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Mon -- 12:40 AM EDT     8.26 feet High Tide
Mon -- 01:01 AM EDT     Moonrise
Mon -- 06:39 AM EDT     Sunrise
Mon -- 07:00 AM EDT     0.85 feet Low Tide
Mon -- 10:47 AM EDT     Moonset
Mon -- 01:12 PM EDT     6.93 feet High Tide
Mon -- 06:57 PM EDT     0.85 feet Low Tide
Mon -- 08:03 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Thunderbolt, Wilmington River, Georgia, Tide feet

Savannah River Entrance
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Mon -- 01:00 AM EDT     Moonrise
Mon -- 01:53 AM EDT     -0.00 knots Slack
Mon -- 04:53 AM EDT     -1.83 knots Max Ebb
Mon -- 06:38 AM EDT     Sunrise
Mon -- 08:17 AM EDT     0.00 knots Slack
Mon -- 10:38 AM EDT     1.48 knots Max Flood
Mon -- 10:46 AM EDT     Moonset
Mon -- 02:05 PM EDT     -0.00 knots Slack
Mon -- 04:44 PM EDT     -1.50 knots Max Ebb
Mon -- 07:58 PM EDT     0.00 knots Slack
Mon -- 08:02 PM EDT     Sunset
Mon -- 10:53 PM EDT     1.85 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Savannah River Entrance, Georgia Current, knots

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