Area Forecast Discussion
Issued by NWS Columbia, SC
Issued by NWS Columbia, SC
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894 FXUS62 KCAE 070146 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 946 PM EDT Thu Jun 6 2024 .SYNOPSIS... A cold front is expected to move across the region late tonight into early Friday morning. Drier air will move in behind the front for Friday into the weekend. Another cold front will move through the area and stall along the coast early next week. This will result in scattered diurnally driven showers and thunderstorms through mid week. Temperatures will be near or above normal. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/... Convection struggled to take hold this afternoon and evening as the best dynamics have remained north and east of the forecast area. The cold front will be crossing the area early tonight with the location of the front becoming diffuse across the region. The best dynamics will again remain north of the area and with IR and WV satellite imagery showing mostly clear skies have removed mention of convection for all but the for northern Midlands and Pee Dee. Although winds will turn westerly with fropa do not expect much if any cold air advection through daybreak and with winds remaining 5 to 10 mph overnight limiting radiational cooling expect lows in the upper 60s to low 70s. && .SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/... Friday and Friday night...Upper level trough with northwest flow aloft across the area. Ridge centered over the desert southwest. The cold front should be moving into the SC coastal plain by daybreak. Drier air will be spreading into the region with west-northwest low-level flow. Dry downslope flow and strong diabatic heating will overcome any weak cold advection. So, temperatures will rise to around 90 degrees, little warmer in the southeast Midlands. Low temps in the low to mid 60s. Saturday and Saturday night...Downslope flow continues with stronger subsidence expected. Temperatures will likely rise into the mid 90s or a little higher in the afternoon. Warmer night expected. && .LONG TERM /SUNDAY THROUGH THURSDAY/... The models suggest another secondary front will move through the area Sunday night as the upper trough to the north amplifies along the eastern seaboard. Guidance is indicating showers should be mainly isolated Sunday night. The front will become stationary near the coast early next week. Typical summer time pattern through mid week with weak to moderate instability each afternoon. Ensembles suggest widely scattered to scattered mainly diurnally driven showers and thunderstorms each day. NBM temperature distribution shows some uncertainly, but temperatures should be near or above normal. && .AVIATION /01Z FRIDAY THROUGH TUESDAY/... VFR conditions expected through the period outside of a remnant shower or storm this evening. THunderstorms really stayed isolated this afternoon, having only impacted the Augusta sites earlier. Convection across the upstate has really struggled, and that is expected to continue. So unless something unexpected happens, VFR is likely for much of the period. Winds have been fairly breezy today out of the southwest but these are beginning to relax this evening. Expect a strong low-level jet to keep winds between 3 and 8 knots overnight, though. Fog/stratus isn`t expected tonight as drier air will begin working in behind a front and the surface winds should keep us fairly mixed. Unseasonably dry air pushes in by tomorrow, with only a few clouds and breezy northwesterly winds expected during the day. EXTENDED AVIATION OUTLOOK...Drier weather through the weekend. Moisture increases early next week which may lead to early morning fog or stratus. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$