Area Forecast Discussion
Issued by NWS Columbia, SC
Issued by NWS Columbia, SC
377 FXUS62 KCAE 271720 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 1220 PM EST Thu Nov 27 2025 .SYNOPSIS... Cool and dry weather conditions remain in place through Saturday. Rain chances increase on Sunday with several days of wet weather possible early next week. High pressure then builds back in for Wednesday. && .NEAR TERM /THROUGH TONIGHT/... Key message(s): - Well below normal temperatures and dry Strong high pressure centered over the Plains and MS Valley will continue to build east into the region through tonight. A very dry air mass has descended over the forecast area with PWATs less than 0.2 inches and dewpoints likely to fall into the teens and low 20s today. The axis of the surface high should remain to our west overnight which will prevent ideal radiational cooling and winds should stay up a bit with a 20-25 knot low level jet present but the continued cold advection alone should allow temperatures to fall below freezing and lows are expected to fall into the 20s with some mid 20s possible. && .SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... Key message(s): - Continued cool and dry. - Widespread subfreezing temperatures Friday night, slightly warmer Saturday night. High pressure will continue to build in from the west on Friday, passing overhead at night, and then offshore on Saturday. This will maintain a cool and very dry air mass over the FA during the short term. PWATs begin the period at or under 0.15" and only manage to climb to around 0.75" by daybreak Sunday. Daytime temperatures will be well below normal with forecast highs in the mid-40s to lower 50s. Conditions will be nearly ideal for radiational cooling Friday night allowing temperatures to once again fall below freezing, with some recovery Saturday night due to increasing cloudiness ahead of the next storm system. && .LONG TERM /SUNDAY THROUGH WEDNESDAY/... Key message(s): - Warmer temperatures possible on Sunday ahead of an approaching cold front. - Rain chances increase early next week and will be likely on Tuesday. - High pressure returns to close out the extended. Winds shift around to the southwest on Sunday as a cold front approaches from the west. Rain chances increase through the day, with the highest probabilities near the Upstate. There remains uncertainly in the timing of the front with the deterministic Euro being faster than the GFS. Temperatures will be dependent on how quickly the front moves in and there may be a large range in daytime temperatures across the FA. The current forecast shows highs ranging from the lower to mid 50s in the northwest to the upper 60s in the southeast. The front stalls somewhere in the region early next week and could mark the boundary between in-situ wedging to the north and warmer air to the south. Current thinking is that the majority of the CWA will be on the cool side of the boundary, with below normal temperatures early next week. There may be a break in the rain on Monday before an area of low pressure develops in the Gulf and rides along the stalled front, bringing a period of moderate to heavy rainfall Monday night into Tuesday. There are discrepancies in the track and timing of this system but PWATs will be well above seasonal values suggesting the heavy rainfall potential. The rain ends late Tuesday or Tuesday night with clearing skies as high pressure builds in from the west. Dry weather closes out the long term. Daytime temperatures early next week are likely to be below normal with near to below normal readings at night. && .AVIATION /16Z THURSDAY THROUGH MONDAY/... VFR conditions expected through the next 24 hours. As high pressure continues to build into the area from the west, northwesterly winds are expected through the period with winds 5 to 10 knots today diminishing overnight then picking back up to around 5 knots from the north to northwest. Dry air mass in place and some light wind overnight should prevent fog concerns. EXTENDED AVIATION OUTLOOK...On Saturday night, moisture begins to increase over the region bringing chances for widespread restrictions and rain into early next week. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$