textproduct: Columbia

WHAT HAS CHANGED

Removed wording for this afternoon. Aviation discussion updated for 00z TAFs.

KEY MESSAGES

- 1. A more typical summer-like pattern expected this week, with increasing heat and humidity this weekend.

DISCUSSION

Key Message 1: A more typical summer-like pattern expected this week, with increasing heat and humidity this weekend.

Dew points toward the mid to upper 50s can be seen now into the Upstate and into NC as the front continues to slowly work through the region. This drier air is expected to continue working in tonight, ending any spotty shower chance. Temperatures tonight are expected to drop into the mid to upper 60s.

Brief drying is expected on Wednesday as northwest flow brings in cooler and drier weather. By the latter half of the week, a weakness developing in the upper trough splits the ridge over the Desert Southwest and western Atlantic, supporting a return of diurnal convection. Temperatures will also trend upward into this weekend, as ridging restrengthens and dominates on Saturday and Sunday. Temperatures are expected to push into the 90s with some global models hinting at upper 90s early next week. Heat indices could also surpass the 100 degree mark. While details remain uncertain, heat headlines may become necessary this weekend for portions of the area depending on how much afternoon mixing occurs.

AVIATION /00Z WEDNESDAY THROUGH SUNDAY/

VFR conditions expected through the TAF period.

Early evening convection along a southward sinking frontal boundary remains northeast of the terminals but expect broken clouds around 5kft at CAE/CUB early in the period as the boundary sinks southward. Westerly winds around 8 to 10 knots to start the forecast should shift more northerly behind the front. Winds continue to shift more northeasterly after 12z around 8 to 10 knots with mostly clear skies expected although some higher clouds will move in later in the day along with some scattered cumulus possible despite a drier air mass.

EXTENDED AVIATION OUTLOOK...Increasing heat and humidity Thursday into the weekend should yield daily diurnal convection and possible associated restrictions.

CAE WATCHES/WARNINGS/ADVISORIES

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