Area Forecast Discussion
Issued by NWS Columbia, SC
Issued by NWS Columbia, SC
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109 FXUS62 KCAE 132350 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 750 PM EDT Tue Aug 13 2024 .SYNOPSIS... Drier air moves into the region mid to late week allowing for slightly cooler and drier conditions. As a weak cold front approaches the Southeast moisture returns to the region for the weekend. && .NEAR TERM /UNTIL 7 AM WEDNESDAY MORNING/... Key Message(s): - Isolated showers remain possible overnight. Drier air is slowly beginning to push into the northern and western Midlands this evening as a surface boundary moves through the region. This boundary brought some showers and stronger thunderstorms through the cwa this afternoon, but majority of this activity is now south and west of the forecast area. Enough moisture still exists tonight, along with additional shortwave energy moving in from the west, to possible develop an isolated shower or two overnight. However, majority of the cwa will remain dry through the night. Should see some redevelopment of some late night stratus and some patchy fog. Lows tonight will be in the upper 60s to low 70s. && .SHORT TERM /7 AM WEDNESDAY MORNING THROUGH THURSDAY NIGHT/... Key Message(s): - Isolated showers or weak thunderstorms possible The frontal boundary that has been draped across the area the past several days is anticipated to have pushed southeastward and out of the forecast area, ushering in some northerly low level winds. An upper trough is also expected to dig a but more and slide eastward through the short term period. A combination of these factors is expected to lead drier air and cooler temperatures. While the surface boundary is expected to be out of the area, it should remain close enough to bring isolated to scattered showers and thunderstorms for Wednesday; however, Thursday is looking to be a much needed dry day across the region. Afternoon highs are forecast to be in the mid to upper 80s each day, with lows in the upper 60s. && .LONG TERM /FRIDAY THROUGH TUESDAY/... Key Message(s): - Widespread hazardous weather unlikely Dry conditions are expected to continue on Friday as an upper ridge and surface high pressure begin to build over the region. An approaching front over the weekend is forecast to help shift the winds to a southerly direction, allowing for an slight increase in moisture. This could lead to some isolated showers and thunderstorms each afternoon through early next week as the boundary lingers around the area. In general, not expecting widespread hazardous weather conditions through the long term forecast period. && .AVIATION /00Z WEDNESDAY THROUGH SUNDAY/... VFR conditions expected to generally prevail over the next 24 hours, with MVFR or IFR cig restrictions possible for a few hours tonight. The weather is quiet right now largely owing to an early start on convection today! A well defined shortwave trough pushed through the area this afternoon, with thunderstorms generally gone by 21z at all sites. Subsidence behind this feature has helped keep us cloudy and calm the past few hours. This also helped push a boundary through the area with that sinking further southwest over the past few hours. Northeasterly flow is now common and should shift some direr air into the forecast area overnight. Stratus is again expected to develop tonight, with HRRR/HREF showing the OGB/AGS/DNL sites seeing the best probability of any restrictions as the boundary will be closest to them. There is a chance that it doesn`t pan out; however, probabilities are high enough to justify explicitly forecasting it there with a lower probability at CAE/CUB. Restrictions should be over by mid-morning tomorrow, with dry air filtering in and helping keep rain chances low. EXTENDED AVIATION OUTLOOK...Low potential for afternoon and evening convection and associated restrictions possible through Friday with increasing chances for Saturday and Sunday. Early morning fog and stratus with brief MVFR/IFR restrictions may occur, especially at prone AGS/OGB. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$