Area Forecast Discussion
Issued by NWS Columbia, SC
Issued by NWS Columbia, SC
809 FXUS62 KCAE 090553 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 1253 AM EST Tue Dec 9 2025 .SYNOPSIS... Cool and cloudy conditions with chilly temperatures expected tonight, into the 20s for most. Dry conditions are then anticipated for the mid to late week period with near to slightly below normal temperatures. A colder air mass may move in behind a dry cold front early next week. && .NEAR TERM /THROUGH TONIGHT/... Key message(s): - Continued cool with below normal temperatures A drier air mass continues to build into the forecast area with northwesterly flow aloft. PWATs will be around 0.25 inches through the day today while low level cool and dry advection continues as surface high pressure builds into the southeastern states. There will be a passing shortwave during the afternoon but with such limited moisture available no precipitation is expected. Widespread low clouds in stratus expected to linger over the region through late morning before breaking up in the afternoon. Northerly flow and the cloud cover will keep high temperatures below normal with highs expected in the 40s. Clearing skies should provide strong radiational cooling conditions tonight and expect lows to fall into the 20s to lower 30s, although the HRRR is showing some stratus redevelopment and if this happens it could limit cooling. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... Key message(s): - Breezy and warmer on Wednesday. - Sunny and slightly cooler on Thursday. Wednesday and Wednesday Night: A potent upper trough moves from the Great Lakes region southeast into the Mid-Atlantic, passing mostly north of the FA. Winds will be out of the southwest resulting in warmer, albeit still below normal, daytime temperatures with highs in the mid to upper 50s. There will likely be a few clouds around, especially across the Northern Midlands which will be closer to the upper support but a dry day is forecast for the entire region. The big story on Wednesday will be the winds which could gust into the 20-25 mph range, higher on area lakes. If trends continue, a Lake Wind Advisory may be required with a future forecast package. Surface winds shift from southwest to northwest by daybreak in response to approaching high pressure. Temperatures should radiate effectively at night with lows in the mid to upper 30s. Thursday and Thursday Night: The shortwave departs the region early in the day with broad longwave troughing setting up. At the surface, winds will be generally light and variable as high pressure moves overhead. Temperatures should be slightly cooler than Wednesday due to Cold Air Advection with forecast highs in the lower to mid 50s. Clear skies and light winds will result in temperatures falling into the upper 20s to lower 30s by daybreak Friday. && .LONG TERM /FRIDAY THROUGH MONDAY/... Key message(s): - Temperatures warm to near normal values this weekend. - The passage of a dry cold front on Sunday may usher in much colder air early next week. An upper trough will remain the dominant upper feature over the Eastern CONUS during the extended. At the surface, high pressure shifts offshore early Friday but should keep the region dry through at least Saturday. The latest guidance now shows a dry cold front crossing the FA on Sunday with much colder air moving in early next week. This is a significant shift from the previous forecast which showed the frontal passage on Friday. The new forecast calls for slightly below normal daytime temperatures on Friday and near normal temperatures Saturday and Sunday, though the latter will depend on the timing of the dry cold front. Bottom line is much uncertainty remains during the latter portion of the long term but it appears the weekend will be warmer than previously anticipated. && .AVIATION /05Z TUESDAY THROUGH SATURDAY/... Widespread low clouds expected through late morning with high confidence in MVFR/IFR restrictions. Stratus clouds continue to build southward through the Midlands with cold advection as high pressure builds in. Expect MVFR cigs to expand to all terminals by 09z-10z and remain in place through late morning before mixing out early afternoon. There is the possibility of a period of IFR cigs CAE/CUB but confidence is low so handled with a tempo group. Winds will be from the northeast but generally remain light around 5 to 6 knots or less. The HRRR is an outlier showing a return of stratus tonight but with all other guidance not showing this decided to keep an optimistic forecast. EXTENDED AVIATION OUTLOOK...No significant aviation restrictions expected. Breezy conditions are possible on Wednesday. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$