Marine Weather and Tide Forecast for Seabrook Island, SC

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/
Late this evening: Showers that developed earlier this evening along the GA coast have no dissipated and we should be rain-free the rest of the night. Lows are forecast to be coolest across interior southeast SC, especially the Francis Marion where temps are expected to dip into the low 50s. Elsewhere, interior southeast GA should see upper 50s to low 60s an low 60s are expected along the coast.

SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/
Sharp upper level ridge axis will edge over the southeast region through the entirety of the short term forecast period, while surface high pressure slowly migrates from the Mid Atlantic down to off the southeast coast. Axis of instability will linger through the Gulf Coast states including southern Georgia, suggesting there could be a few pop-up showers close by in southern Georgia. Keeping the southeast Georgia forecast dry at this juncture...but later shifts might consider adding some low end pops to that area.

Otherwise, rain-free conditions anticipated through the short- term period. Highs will largely warm to the lower to middle 80s on Tuesday away from the coast...the middle and upper 80s Wednesday and Thursday. Lows largely spanning the 50s, warmer along the coast.

LONG TERM /THURSDAY NIGHT THROUGH MONDAY/
Larger scale troughing is expected to develop/advance across the eastern CONUS late week and into the weekend. Associated surface cold front presses into the southeast region during the Friday/Friday night period, briefly stalling across the region heading into the weekend, bringing our next period of unsettled weather. Right now, the best chances for showers and some thunderstorms are during the Friday/Friday night period, with precip chances lingering into Saturday and possibly Sunday.
Given only modest instability and shear, severe weather potential is looking limited, although interestingly CIPS analog severe probs do show at least a lower end chance for severe storms across the region on Friday.

Late weekend into early next week: Strong high pressure is looking to develop through the deep south, driving the boundary southward out of the area. This brings a bit of a cool down late in the forecast period, with temperatures back to around normal for early May.

AVIATION /03Z TUESDAY THROUGH SATURDAY/
VFR conditions are expected to prevail at KCHS, KJZI, and KSAV through 00z Wednesday.

Extended Aviation Outlook: Largely VFR. Showers and a few thunderstorms are possible Friday into Saturday and might lead to brief flight restrictions during that time.

MARINE
This evening and tonight: A 1027-1028 mb high off the cost of the Delmarva and North Carolina will extend across the local waters. There is enough of a gradient and an enhancement of the sea breeze early on to generate E winds of 15-20 kt all waters, with even occasional higher gusts. Not enough though for any Small Craft Advisory headlines. As the sea breeze circulations fade prior to midnight, winds look to diminish some. Seas will average 3-4 feet within 20 nm, and up to 5 feet further off the Georgia coast.

Tuesday through Saturday: High pressure will prevail Tuesday through Thursday night. Cold front edges into the region Friday and into the weekend. Winds and seas expected to remain below advisory levels through Friday. However, increasing southwest winds Friday night into Saturday may lead to seas building toward 6 feet in the South Carolina nearshore waters.

Rip Currents: East to southeasterly flow along with easterly swell of 2 ft every 8 seconds will maintain a moderate rip current risk for all beaches on Tuesday.

TIDES/COASTAL FLOODING
Another round of coastal flooding is possible with the Tuesday evening high tide, likely only for Charleston County and coastal Colleton County.

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