Marine Weather and Tide Forecast for Mount Pleasant, SC

NEAR TERM /THROUGH TONIGHT/
Subtropical ridge axis will remain largely in place across the southeast CONUS and Florida Peninsula through tonight, along with a large expanse of surface high pressure tucked along the Atlantic coast. Strong subsidence will maintain our stretch of rain-free conditions although a fair amount of high level cloud cover will continue to cycle through the region along the western edge of the upper level ridge, leading to overall partly sunny/partly cloudy conditions.

High temperatures today will warm back into the lower to middle 80s away from the coast, with some upper 80s possible in inland southeast Georgia. Low temperatures tonight largely fall back into the 60s.

SHORT TERM /TUESDAY THROUGH THURSDAY/
Deep layered ridging will being to lose its grip over the forecast area as it pivots eastward into the Atlantic. Still, dry conditions are forecast during the day. Despite the rain-free weather, partly to mostly cloudy skies are forecast with cirrus in place. Tuesdays highs will peak in the mid to upper 80s, and possibly 90 degrees in isolated spots.

A cold front will approach from the northwest Tuesday night, slowly sagging into the forecast area and then stalling across the South Carolina Midlands Wednesday into Thursday. Isolated showers and a possible thunderstorm could develop across the interior South Carolina counties/near the boundary Tuesday night. Scattered coverage of showers and thunderstorms are expected Wed/Thu, enhanced by the afternoon sea breeze. High temperatures should peak in the mid/upper 80s to near 90 degrees away from the coast both Wednesday and Thursday. Warmer temperatures should focus across southeast Georgia, but will be dependent on the location of the stalled front.
Low temperatures will stay in the low/mid 60s both Tuesday and Wednesday night.

LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/
Thursday night into Friday the front will retreat north, slightly decreasing rain chances. Also, the upper ridge will break down and rippling weak shortwaves could bring a few showers/thunderstorms Saturday. A cold front could then push through the area Sunday, bringing additional rain chances. Above normal temperatures will persist through Saturday before dropping to near normal by Sunday with the arrival of the front.

AVIATION /12Z MONDAY THROUGH FRIDAY/
VFR conditions will persist at the terminals through the upcoming TAF period. Batch of lower (VFR ) cloud cover has managed to sneak off the Atlantic overnight and into southeast South Carolina, producing a BKN deck around 4K feet. Cloud cover will stick around although thin out to some degree this afternoon.

Southerly winds continue with a tendency to increase late this morning and through the afternoon. Sea breeze moves inland this afternoon and could provide some slight enhancement in speeds.
Winds go light again tonight.

Extended Aviation Outlook: Gusty winds are possible each afternoon at all terminals with the passage of the sea breeze. There are no other concerns.

MARINE
Southerly to southeasterly flow pattern continues across the coastal waters along the western side o Bermuda high pressure.
Wind speeds largely 10 to 15 knots and seas 2 to 4 feet.

Tuesday through Saturday: The weather pattern will generally yield south-southeast winds around 10 kt each day. Winds could be a bit stronger across the Charleston Harbor and close to the coast each afternoon following the sea breeze. Seas should average 1-3 ft within 20 nm and around 3 ft for the GA waters beyond 20 nm. No marine headlines are expected.

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