Sunrise 6:10 AM   Sunset 8:25 PM Moonrise 2:19 AM   Moonset 3:28 PM

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AMZ330 Charleston Harbor- 323 Pm Edt Sun Jun 2 2024
Tonight - SE winds 10 to 15 kt with gusts up to 20 kt, veering S and diminishing to 5 to 10 kt this evening. Waves 1 to 2 ft early. Mon - S winds 5 kt, increasing to 10 to 15 kt in the afternoon. A slight chance of showers and tstms. Mon night - S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Tue - SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts to 20 kt in the afternoon. A slight chance of showers and tstms. Tue night - S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. A slight chance of showers and tstms in the evening. Wed - SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. A chance of showers and tstms.Wed night - S winds 10 to 15 kt. A chance of showers and tstms. Thu - SW winds 10 to 15 kt. A chance of showers and tstms. Thu night - SW winds 10 to 15 kt. A chance of showers and tstms.Fri - SW winds 10 to 15 kt. A chance of showers and tstms. Fri night - W winds 10 to 15 kt. A slight chance of showers and tstms.
winds and waves higher in and near tstms.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 80 degrees.

AMZ300 323 Pm Edt Sun Jun 2 2024
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - High pressure will extend across the area through Wednesday. A cold front will slowly move through on Friday, followed by high pressure.

FXUS62 KCHS 021730 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 130 PM EDT Sun Jun 2 2024

SYNOPSIS
High pressure will extend across the area through Wednesday. A cold front will slowly move through on Friday, followed by high pressure.

NEAR TERM /THROUGH TONIGHT/
Early afternoon: With heating of the day, a small uptick in showers is occurring inland although coverage remains very isolated. We have tweaked pops to lower overall precip chances inland - 20 to 30 percent. Given the relatively modest instability, we have also removed thunder mention for all areas.

Previous discussion...
Morning composite analysis reveals low amplitude troughiness across the southeast CONUS, surface high pressure now well off the mid Atlantic coast and southerly return flow across the region. Axis of higher PWAT air has spread into the region...PWAT values over one inch. Modest warm/moist advection and larger scale QG-forcing for ascent has/is producing some light showers west of the I-95 corridor. There has also been some very light shower activity off the Atlantic overnight into this morning, much of which has diminished at this juncture.

Rest of today: Weak troughiness/QG-forcing for ascent remains across the region through the afternoon. Add in daytime heating and some modest instability (500 J/Kg or less MLCAPE) and we should see some additional isolated to scattered shower activity develop across the region as we go through the day, particularly inland. We have made some minor cosmetic tweaks to pops/weather although maintaining pop chances in the 20 to 40 percent range inland. Thunder probs are very low this afternoon given minimal instability. We have capped any thunder wording to areas west of the I-95 corridor.

Finally, the added cloud cover will hold temperatures down to some extent although cloud cover will thin out a bit as we get into the afternoon. Maintaining highs largely in the middle 80s (83-87) and cooler readings along the coast.

Tonight: Any ongoing convection should diminish in the early evening hours and then the rest of the overnight is expected to be dry. There could be some isolated convection across the coastal waters, though most of that should be beyond the local waters. Look for mid to upper 60s for lows in most areas with no significant fog concerns.

SHORT TERM /MONDAY THROUGH WEDNESDAY/
Surface high pressure will remain over the western Atlantic Monday through Wednesday. Warm and moist southerly flow will persist, with high temps steadily increasing each day. Diurnal convection appears possible each day, though better coverage is expected Monday and Wednesday due to some upper shortwave energy moving through. A fairly capped atmosphere is anticipated on Tuesday. The greatest convective coverage on any day should be farther inland where greater instability develops.

LONG TERM /WEDNESDAY NIGHT THROUGH SATURDAY/
Thursday could see greater convective coverage, especially in the afternoon, as a potent upper shortwave moves through while deep moisture remains in place. Low-level warm advection could result in high temps in the lower 90s away from the coast. A zonal flow develops aloft on Friday while a weak cold front sags into the area. Instability could be pretty impressive on Friday along with DCAPE above 1200 J/kg, though convective coverage could be isolated at best due to strong mid-level capping in the deep westerly flow. Compressional heating ahead of the front could yield highs in the mid 90s, including fairly close to the coast due to a pinned sea breeze. Even if the cold front makes it through Friday night, Saturday temps will not be much cooler.
However, dewpoints should mix down into the upper 50s which will make for a noticeable change in airmass.

AVIATION /18Z SUNDAY THROUGH FRIDAY/
VFR conditions will prevail at KCHS, KJZI, and KSAV through 18z Monday.

Extended Aviation Outlook: Conditions will generally be VFR through the period.

MARINE
Today and tonight: SE to SSE flow will prevail across the local waters, with speeds mostly in the 10-15 knot range. The strongest winds will likely be along the land/sea interface in the afternoon and early evening and gusts up to around 20 knots will be possible. Seas will mostly average 2-3 feet, but could be up to 4 feet at times in the outer Georgia waters.

Monday through Friday, Atlantic high pressure will continue to be the main feature and a typical summertime pattern will ensue.
Southerly winds will prevail, with the typical coastal enhancement each afternoon in association with the sea breeze.
Wind speeds should remain below 15 kt and seas will remain at or below 4 ft.

TIDES/COASTAL FLOODING
The evening high tides in Charleston could hit 7.0 ft MLLW Monday through Thursday and require Coastal Flood Advisories.
This is due to increasing astronomical tides combined with a persistent positive tidal anomaly of 0.5 to 0.7 ft. The astro tide is highest Wednesday evening where it reaches 6.5 ft MLLW.

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

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Kiawah River Bridge
Click for Map
Sun -- 03:19 AM EDT     Moonrise
Sun -- 05:08 AM EDT     5.56 feet High Tide
Sun -- 06:13 AM EDT     Sunrise
Sun -- 11:13 AM EDT     -0.29 feet Low Tide
Sun -- 04:28 PM EDT     Moonset
Sun -- 05:46 PM EDT     6.53 feet High Tide
Sun -- 08:24 PM EDT     Sunset
Sun -- 11:58 PM EDT     0.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Kiawah River Bridge, South Carolina, Tide feet

Charleston Harbor Entrance
Click for Map
Sun -- 01:41 AM EDT     1.49 knots Max Flood
Sun -- 03:18 AM EDT     Moonrise
Sun -- 05:19 AM EDT     -0.00 knots Slack
Sun -- 06:11 AM EDT     Sunrise
Sun -- 08:41 AM EDT     -2.46 knots Max Ebb
Sun -- 11:40 AM EDT     0.00 knots Slack
Sun -- 02:08 PM EDT     1.89 knots Max Flood
Sun -- 04:27 PM EDT     Moonset
Sun -- 06:02 PM EDT     -0.00 knots Slack
Sun -- 08:23 PM EDT     Sunset
Sun -- 09:19 PM EDT     -2.63 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION

Charleston Harbor Entrance, South Carolina Current, knots

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Charleston, SC,