Area Forecast Discussion
Issued by NWS Columbia, SC

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000 FXUS62 KCAE 211759 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 159 PM EDT Sat Sep 21 2019 .SYNOPSIS... High pressure at the surface and aloft will dominate through Monday. A weak cold front with little moisture will move through the area Monday night. High pressure and even warmer temperatures expected for the remainder of the week. && .NEAR TERM /THROUGH TONIGHT/... High pressure both aloft and at the surface continues to dominate. The airmass is relatively dry with pwat values below an inch. Satellite imagery this afternoon showing a scattered fair weather cumulus field across the forecast area. Skies will become mostly clear this evening. Excellent radiational cooling conditions expected again tonight. Overnight low temperatures in the upper 50s to lower 60s. Went a little below guidance given high bias the past couple of nights. && .SHORT TERM /SUNDAY THROUGH TUESDAY NIGHT/... High pressure aloft and at the surface will help keep dry condition and Monday. Monday night will see a weak front push towards the cwa, with the front then moving through on Tuesday. Moisture remains limited with this frontal passage, so no rainfall anticipated. High pressure then rebuilds back into the area beginning Tuesday night behind the front. With plenty of sunshine each day, temperatures will climb back to around 90 degrees through Monday. Tuesday may actually be warmer with drier air behind the front. && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... Ridging continues through the end of the week, with temperatures expected to climb well above normal. Readings in the lower to mid 90s during the day, with overnight lows in the upper 60s to near 70. && .AVIATION /18Z SATURDAY THROUGH THURSDAY/... VFR conditions expected through the 24-hour TAF period. However, brief, patchy fog possible early Sunday morning at AGS/OGB. Ridging both aloft and at the surface coupled with a dry airmass will continue to result in VFR conditions at the terminals through tonight. Light and variable winds this afternoon will become calm tonight. Cannot rule out brief patchy fog at fog prone AGS and OGB early Sunday. Model guidance has been overdoing the fog threat the past couple of days, so confidence is low. Did not include mention at this time. EXTENDED AVIATION OUTLOOK...Expect mainly VFR conditions though the outlook period, but there may be IFR fog during the early morning hours. && .CAE WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. && $$

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