Area Forecast Discussion
Issued by NWS Columbia, SC
Issued by NWS Columbia, SC
664 FXUS62 KCAE 110703 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 203 AM EST Thu Dec 11 2025 .SYNOPSIS... Dry weather is expected to continue through Saturday with near to slightly below normal daytime temperatures. A cold front crosses the region Saturday night and Sunday morning ushering in an arctic air mass for Sunday night into early next week. Weak ridging should then allow for air mass recovery by the middle of next week. && .NEAR TERM /THROUGH TONIGHT/... Key message(s): - Dry with below normal temperatures today. A cold front will move through the forecast area over the next few hours. This will bring a subtle wind shift from the southwest to the west or northwest and a few gusts to around 15 kts as the pressure gradient tightens. The airmass remains very dry, with satellite PWAT estimates around 0.4", effectively negating any threat for precip with the frontal passage. With winds remaining elevated for a few more hours, low temps are forecast to be slightly warmer than last night and fog is not expected. For the remainder of today, a deep trough is forecast to continue moving across the eastern CONUS, bringing a drier airmass and below normal temperatures to the Midlands and CSRA. Temperatures this afternoon should peak in the the upper 40s and low 50s, with lows tonight in the upper 20s and low 30s. Northwest winds may be a bit breezy this morning but should relax through the day as the front moves away from the area to the east and high pressure moves back in from the west. && .SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... Key message(s): - Dry conditions continue Friday and Saturday with near normal daytime temperatures. - A cold front approaches Saturday night with a chance of rain. Broad upper troughing will be in control of the weather during the short term as a potent shortwave begins to take shape over the Great Lakes region near the end of the period. At the surface, high pressure will maintain southwesterly flow through the period resulting in increasing warm air and moisture advection ahead of an approaching arctic cold front. This will result in dry conditions Friday and Saturday with near normal daytime temperatures. Rain chances increase Saturday night as the aforementioned front approaches, but PWATs are modeled to be around 1 inch suggesting any rainfall accumulations will be light. Friday and Saturday should feature similar temperatures, with Saturday being slightly warmer. Forecast highs both days range from the mid-50s to the lower 60s. Thursday night will feature idealized radiational cooling (clear skies and light winds) with temperatures falling into the upper 20s and lower 30s while increasing cloudiness Saturday night should result in overnight readings in the mid-30s to lower 40s. && .LONG TERM /SUNDAY THROUGH WEDNESDAY/... Key message(s): - Arctic cold front crosses the FA on Sunday with the coldest air of the season thus far filtering in Sunday night. - Very cold air remains in place Monday and Monday night with gradual air mass recovery Tuesday and Wednesday. Confidence has increased in the potential for an arctic air mass to move into the FA behind a cold front. A potent shortwave trough moves into the Mid-Atlantic on Sunday helping to pull a cA air mass south into the region. The period begins with any clouds and rain departing early in the morning, followed by a wind shift to the northwest and the development of gusty winds behind the aforementioned cold front. Temperatures Sunday and Sunday night will largely depend on how quickly the boundary crosses the region. An earlier frontal passage will likely produce lower temperatures Sunday and Sunday night. The large temperature variance shown in the guidance last night has contracted significantly and trends will need to be monitored for possible cold weather products Sunday night. The very cold temperatures will persist into Monday and Monday night before air mass recovery begins Tuesday and Wednesday when weak upper ridging moves in. With the exception of any lingering rain Sunday morning, the chance for additional precipitation is low through the extended. && .AVIATION /06Z THURSDAY THROUGH MONDAY/... VFR expected through the valid TAF period. A cold front is currently moving through the upstate of SC/GA, and will move through the terminals over the next hour or two. At that time, expect that winds and gusts will again increase along and behind the front, with winds veering from southwest to northwest. Until then, a low-level jet will increase LLWS potential, but with winds at the surface picking back up with the front, that threat is expected to diminish. Surface winds then remain northwest much of today around 10 kts before decreasing to light and variable this evening into tonight. Winds and dry air preclude any fog and/or VSBY reductions. SKC will give way to FEW-SCT clouds around 4-6kft MSL with the frontal passage. There will also be some higher clouds aloft moving in from the west. Once the front moves through, cloud cover should thin with only some higher level cloudiness remaining through the rest of today and no CIG restrictions expected. EXTENDED AVIATION OUTLOOK...Dry air will hinder widespread restrictions through much of the extended, but localized fog along river valleys will be possible this weekend. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$