textproduct: Charleston

WHAT HAS CHANGED

The Aviation Section was updated to reflect the 00Z TAFs.

KEY MESSAGES

- 1) Dry conditions and seasonable temperatures expected this weekend and into next week.

DISCUSSION

KEY MESSAGE 1: Dry conditions and seasonable temperatures expected this weekend and into next week.

Tonight: High pressure will extend across the region tonight. A bit of a pressure gradient between higher pressure to the north and weak inverted northwest-southeast oriented surface trough over Georgia will likely keep the winds up a bit slightly this evening before going light/calm after midnight as the boundary layer decouples. High clouds associated with the subtropical jet will slowly thin out with time with mostly clear conditions expected late. This will allow some modest radiational cooling to occur, especially over the South Carolina Lowcountry where a longer boundary decoupling is expected to occur. Lows will range from the mid-upper 40s inland to the upper 50s/near 60 at the beaches. Some lower 40s are possible, mainly over central and northern portions of Berkeley County and interior upper Charleston County in the Francis Marion National Forest.

Sunday through Saturday: Surface High pressure will prevail across the Southeast U.S. the first half of next week, bringing dry conditions. High temperatures Sunday should range from around 70 degrees to the mid 70s, except cooler at the beaches. Temperatures rise a few degrees on Monday, peaking in the mid to upper 70s, which is a few degrees above normal. These highs should again be reached Tuesday and Wednesday. The combination of light to calm winds and mostly clear skies should lead to decent radiational cooling Sunday and Monday nights. Lows should dip to around 40 degrees far inland, and the 50s at/near the beaches. An increase in clouds and perhaps winds should warm up low temperatures a few degrees Tuesday and Wednesday nights.

A fast moving cold front could bring a brief period of light showers on Thursday. Behind the front, expect dry conditions on Friday along with temperatures well below normal, especially overnights.

AVIATION /00Z SUNDAY THROUGH THURSDAY/

VFR conditions are expected at KCHS/KJZI/KSAV through the 00Z TAF period.

Extended Aviation Outlook: There are no concerns.

MARINE

Tonight: There are no concerns with northeast winds prevailing. There will likely be a bit of a nocturnal surge late, but speeds should max out around 15 kt with gusts to 20 kt. Seas will average 2-4 ft, highest over the outer portions over the 20-60 NM legs.

Sunday through Thursday: Surface High pressure will prevail across the Southeast U.S. the first half of next week, bringing a light to perhaps gentle breeze. Seas will be 3-5 ft on Sunday. On Monday, seas are expected to subside to 2-3 ft within 20 nm and 3-4 ft for the 20-60 nm waters, then persisting through the middle of next week.

CHS WATCHES/WARNINGS/ADVISORIES

GA...None. SC...None. MARINE...None.