Area Forecast Discussion
Issued by NWS Columbia, SC
Issued by NWS Columbia, SC
395 FXUS62 KCAE 200616 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 116 AM EST Thu Nov 20 2025 .SYNOPSIS... Near record high temperatures remain possible on Friday ahead of the next system. A few showers or thunderstorms are possible on Saturday with a cold front before high pressure returns for Sunday and Monday. && .NEAR TERM /THROUGH TONIGHT/... Key message(s): - Early morning fog possible in the CSRA. - Cooler behind front today. A weak dry cold front will sag into the forecast area this morning. As a result, moisture pooling in the CSRA may produce pockets of fog between now and daybreak. HRRR, LAMP guidance and the latest NBM continue to show potential for fog, so confidence is fairly high. However, it doesn`t appear it will be widespread enough to require any headlines, but we`ll continue to monitor. Behind the front, northeast flow will bring slightly cooler temperatures with highs ranging from the low 70s northeast to the upper 70s southeast. PWAT`s should slowly increase through the day and into tonight, but no precip is expected. Skies remain partly to mostly cloudy through the period. This will also aid to limit radiational cooling tonight with low temps in the low to mid 50s. && .SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... Key message(s): - Very warm through Saturday with some showers-storms around late Saturday afternoon. Broad ridging will continue across the region Friday as a deep cutoff low on the west coast helps linger a quasi-blocking pattern. This will allow temps to again climb well above average Friday, with much of the area pushing into the upper 70`s or low 80`s; high temps Friday will again come close to record highs at both AGS and CAE. The ridge will begin to flatten out somewhat as we move into Saturday thanks to a series of weak shortwaves ejecting out of the western US cutoff low. An accompanying diffuse low pressure system will quickly drive into the region by the afternoon on Saturday, with some height falls and increasing southwesterly moisture advection. This will help drive PWAT`s up to around 1.25" and actually help develop some elevated instability. So some scattered showers and thunderstorms remain possible in the afternoon across the area. High temps will again near record highs, climbing into the low 80`s; EC EFI`s continue to show a pretty classic near-barely record setting temp of warmth in this pattern. && .LONG TERM /SUNDAY THROUGH WEDNESDAY/... Key message(s): - A return to near average temps following by a steady warmup. Rain chances increase by the middle of next week. Some cool, dry advection will push into the area following Saturday`s front on Sunday. This will push temps back towards average with a notable drop in surface moisture and PWAT`s on Sunday and Monday. The deep cutoff low in the western US will finally progress east Monday and steadily amplify heights downstream. So temps will quickly push back well above average by mid-week; EC EFI reflects the pattern well with anomalous heights and temps quickly. Rain chances will then increase by mid-late week as the ejecting cutoff eventually pushed into our region. NAEFS and EC guidance are generally inconsistent as one would expect for days 6-8, but chances of broad moisture and a slow moving front look probable. && .AVIATION /06Z THURSDAY THROUGH MONDAY/... Fog and low clouds possible at Augusta terminals this morning. High clouds will generally be in place across the area through the period. Calm winds at the surface along with some lingering moisture should cause VSBYS and CIGS to drop at the AGS/DNL terminals, and potentially OGB. Guidance has been consistent in IFR/LIFR ceilings and visibility. A front will bring drier air into CAE/CUB, so confidence is much lower for any restrictions there this morning. Restrictions likely linger beyond sunrise before low clouds and fog mix out. Drier air moves in late morning and afternoon Thursday with VFR conditions expected. Winds will be mostly light, around 5 knots or less generally out of the N/NE. Winds return to light and variable or calm this evening with continued high clouds across the region. EXTENDED AVIATION OUTLOOK...VFR conditions likely continue Friday. Increasing moisture Friday night into Saturday will lead to chances for rain and possible restrictions. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$