


Area Forecast Discussion
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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806 FXUS62 KCHS 130603 AFDCHS Area Forecast Discussion National Weather Service Charleston SC 203 AM EDT Mon Oct 13 2025 .SYNOPSIS... High pressure will extend into the area today and linger into much of the week. && .NEAR TERM /THROUGH TONIGHT/... The mid-level Low over the Southeast U.S. this morning will lift to the NNE as time progresses. At the surface, Low pressure near the Outer Banks of NC this morning will move away as time progresses, while High pressure builds in from the west. Remnant showers across our area early this morning will quickly dissipate, with dry conditions expected late this morning, continuing into the overnight. Clouds will first clear across SE GA this morning, then across SE SC this afternoon. High temperatures will range from the lower to middle 70s across the Charleston Tri-County, to the lower 80s along the Altamaha River and vicinity. Lows tonight will range from the mid 50s far inland, to the lower 60s near the coast. && .SHORT TERM /TUESDAY THROUGH THURSDAY/... Upper level ridging strengthens over the central CONUS by Tuesday, allowing dry conditions to continue across the region. Though notably lighter than days past, could still see some northerly gusts up to 20 mph across far southeastern South Carolina through the afternoon. With the aid of sunny skies, will also see highs moderate back into the upper 70s to lower 80s. Expect much of the same Wednesday as a moisture starved cold front takes aim at the region. While dry weather is expected to continue, will see a dip in temperatures occur heading into the weekend. && .LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/... As noted above, will see slightly cooler temperatures occur in the wake of FROPA Friday - with highs only rising into the 70s. Nonetheless, with sfc high pressure progged to strengthen overhead this weekend, should see temperatures once again rise back into the lower 80s. Pleasant dewpoints and sunny skies will also make conditions feel a bit more fall-like as we end the period. && .AVIATION /06Z MONDAY THROUGH FRIDAY/... 06Z TAFs: Light rain showers across SE SC will dissipate early this morning, with dry conditions expected across SE SC and SE GA late this morning. MVFR at CHS and JZI should transition to VFR by the late afternoon. MVFR at SAV early this morning should transition to VFR late this morning. Extended Aviation Outlook: VFR conditions expected to prevail. && .MARINE... Today and Tonight: Low pressure near the Outer Banks of NC this morning will move away as time progresses. This will lead to winds and seas trending lower across our coastal waters. The Small Craft Advisory for the Charleston waters should expire this afternoon, while the one for the GA waters beyond 20 nm should expire this evening. Tuesday Onward: Expect marine conditions to gradually improve as high pressure builds down from the northwest. Winds should remain 10- 15 kts, with gusts up to 20 kts possible on Tuesday through most of Wednesday. A dry front is expected to sweep across the waters on Wednesday night into Thursday morning. Expect winds to veer north- northeasterly behind the front, and the local pressure gradient to tighten up. In response to this, winds will strengthen to 15-20 kts with gusts up to 22-23 kts on Thursday. On Friday, the winds should ease throughout the day with speeds ranging 10-15 kts by mid-day. Expect seas to 2-4 ft on Tuesday, and then building back up to 4-6 ft on Wednesday. Small Craft Advisories might be needed for AMZ350 and AMZ374 due to wave heights beginning on Wednesday. Rip Currents: There is a Moderate Risk of rip currents along our entire coast today. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. MARINE...Small Craft Advisory until 2 PM EDT this afternoon for AMZ350. Small Craft Advisory until 2 AM EDT early this morning for AMZ352. Small Craft Advisory until 9 PM EDT this evening for AMZ374. && $$ NEAR TERM... SHORT TERM... LONG TERM... AVIATION... MARINE...