Sunrise 6:28 AM   Sunset 8:04 PM Moonrise 2:46 AM   Moonset 2:15 PM

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AMZ330 Charleston Harbor- 935 Am Edt Fri May 3 2024
Today - SE winds 5 kt, increasing to 10 to 15 kt with gusts to 20 kt this afternoon. Tonight - SE winds 5 to 10 kt. Sat - SE winds 5 kt, increasing to 10 kt in the afternoon. A slight chance of showers and tstms in the afternoon. Sat night - S winds 10 kt. A slight chance of showers and tstms.Sun - S winds 5 to 10 kt. A chance of showers and tstms. Sun night - S winds 5 to 10 kt. A slight chance of showers and tstms in the evening. Mon - SW winds 5 to 10 kt. A chance of showers and tstms. Mon night - S winds 10 kt. A slight chance of showers and tstms.Tue - SW winds 10 to 15 kt. A slight chance of showers and tstms. Tue night - SW winds 10 to 15 kt.
winds and waves higher in and near tstms.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 73 degrees.

AMZ300 935 Am Edt Fri May 3 2024
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - Atlantic high pressure will remain across the southeast through much of next week.

FXUS62 KCHS 031323 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 923 AM EDT Fri May 3 2024

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

NEAR TERM /THROUGH TONIGHT/
The remainder of the Dense Fog Advisory has been cancelled.
Visibilities will continue to improve as the fog/stratus mix out.

Today: It will be another warm one across Southeast South Carolina and Southeast Georgia. Morning GOES-E multi-layer water vapor analysis and RAP initialization progs show subtropical ridging remains in place across the Southeast U.S. this morning with the ridge axis centered just offshore the South Carolina and Georgia coast. This ridge will slowly propagate farther out in the Atlantic today as weak impulses move across the Deep South into the western Southeast States. Conditions will favor the genesis of another progressive pure sea breeze with the boundary propagating steadily inland through the local area through the afternoon and evening. 850 hPa theta-e pooling coupled across the far interior with some mixed-layer instability (MLCAPE ~1200 J/kg) per modified RAP soundings at KSBO and KMHP would suggest some convection that develops over the CSRA and east-central Georgia could meander into roughly the Reidsville-Millen corridor late this afternoon and evening.
Slight chance pops were maintained in this area to account for this possibility.

The fog/stratus will lift into another healthy cumulus field this afternoon which will scour out with the passage of the sea breeze. Some high clouds will pass through aloft as well. The net result will be mostly sunny to partly cloudy skies for most areas. Highs from the upper 80s/near 90 inland to the mid-upper 70s at the beaches look on track.

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 /13Z FRIDAY THROUGH TUESDAY/
KCHS/KJZI/KSAV: Other than a little light fog at KSAV through 13, VFR will prevail at all terminals. The potential for fog tonight t is less than recent nights, and would likely occur inland from the terminals anyway.

There are no concerns for SHRA or TSRA at any the terminals with the 12Z 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.

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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Cainhoy
Click for Map
Fri -- 03:46 AM EDT     Moonrise
Fri -- 05:05 AM EDT     6.39 feet High Tide
Fri -- 06:29 AM EDT     Sunrise
Fri -- 11:10 AM EDT     0.12 feet Low Tide
Fri -- 03:14 PM EDT     Moonset
Fri -- 05:37 PM EDT     6.35 feet High Tide
Fri -- 08:03 PM EDT     Sunset
Fri -- 11:38 PM EDT     0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Cainhoy, Wando River, South Carolina, Tide feet

Charleston Harbor Entrance
Click for Map
Fri -- 01:05 AM EDT     1.51 knots Max Flood
Fri -- 03:46 AM EDT     Moonrise
Fri -- 04:49 AM EDT     -0.00 knots Slack
Fri -- 06:29 AM EDT     Sunrise
Fri -- 08:12 AM EDT     -2.37 knots Max Ebb
Fri -- 11:15 AM EDT     0.00 knots Slack
Fri -- 01:34 PM EDT     1.63 knots Max Flood
Fri -- 03:15 PM EDT     Moonset
Fri -- 05:15 PM EDT     -0.00 knots Slack
Fri -- 08:02 PM EDT     Sunset
Fri -- 08:38 PM EDT     -2.27 knots Max Ebb
Fri -- 11:43 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Charleston Harbor Entrance, South Carolina Current, knots

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Charleston, SC,