textproduct: Charleston

WHAT HAS CHANGED

The Aviation section has been updated.

KEY MESSAGES

- 1) Rain chances likely to increase heading into the weekend, though no hazardous weather is anticipated at this time.

DISCUSSION

KEY MESSAGE 1: Rain chances likely to increase heading into the weekend, though no hazardous weather is anticipated at this time.

Expect sfc cold front near the Tennessee River Valley to sag over the Carolinas by Friday. This boundary will bring an uptick in moisture along with increasing rain chances through the weekend. As noted in days past, the greatest rain chances remain confined to areas inland near the front. Meanwhile, for areas along the coast, expect development to stay fairly limited as the upper level ridge holds tight overhead. In terms of severe weather, the better moisture and instability should reside just to our west and north. This, combined with weak large-scale forcing and shear, is expected to keep the overall severe threat low across our area - at least through the weekend.

Unsettled weather look to continue heading into the new week, though confidence in location and amounts remains low given the diurnally driven nature of any shower/storm. Otherwise, look for afternoon highs in upper 80s to lower 90s to prevail, with overnight lows in the upper 60s to 70s.

AVIATION /12Z THURSDAY THROUGH MONDAY/

21/12z TAF Discussion: KCHS/KJZI/KSAV: Should see any lingering fog quickly burn off in the coming hours, allowing VFR conditions to prevail. Gusty winds will accompany the sea breeze again this afternoon with winds diminishing during the mid-late evening hours.

Extended Aviation Outlook: There are no high confidence concerns.

MARINE

Through Tonight: Southerly wind regime will remain place through tonight with Atlantic high pressure centered well offshore. Sea breeze enhancements along the land/sea interface are likely again today this afternoon and early evening near the beaches and in the Charleston Harbor as the sea breeze moves inland. Speeds will generally remain less than 15 kt, except near 15 kt at times in the Charleston Harbor with the sea breeze this afternoon/evening. Seas will average 2-4 ft.

Friday through Monday: No marine concerns are expected. High pressure to the east will drive onshore east-southeasterly flow each day, with wind speeds mostly topping out in the 10-15 knot range. Each afternoon and evening there could be some local enhancement along the land/sea interface with the diurnal sea breeze. Seas will average 2-4 feet through the period.

Rip Currents: A modest easterly swell around 3ft/9s and sea breeze influences each afternoon will keep the rip current risk well into the moderate category through Friday.

CHS WATCHES/WARNINGS/ADVISORIES

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