Area Forecast Discussion
Issued by NWS Columbia, SC
Issued by NWS Columbia, SC
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617 FXUS62 KCAE 141835 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 235 PM EDT Wed Aug 14 2024 .SYNOPSIS... High pressure will be over the area through late this week allowing for dry weather and slightly cooler temperatures. As a weak cold front approaches the Southeast this weekend, moisture and rain chances return. The front may stall over the Southeast early next week leading to continued slight chances for rain. && .NEAR TERM /THROUGH TONIGHT/... Key Message(s): - Calm weather with pleasant overnight low temperatures Satellite imagery and surface obs show weakly developed cumulus field has developed across the area as northerly flow continues pushing drier air into the area. Along the coast a few showers have developed and are gradually pushing inland. There is just a slight chance of showers and thunderstorms this afternoon into early evening in the far southeastern Midlands and and southern CSRA. Any convection which develops will quickly dissipate with sunset along with much of the cumulus. Overnight high pressure will continue to ridge into the area keeping dry air in place however with a short wave rotating through the area toward the base of the trough expect some cloudiness to linger overnight mainly over the southern half of the forecast area. With the drier air and light winds over the area tonight temperatures will fall into the mid to upper 60s at most locations. && .SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/... Key Message(s): - Quiet weather with dry conditions expected. Thursday and Friday are expected to be dry as upper ridging and surface high pressure build in over the area. However, an upper trough and associated surface frontal boundary over the Upper Midwest begin to drift toward the forecast area. As a result, overall atmospheric moisture is anticipated to increase on Friday as southwesterly flow is forecast over the region. Despite the increase in moisture, rain is not expected as the boundary is forecast to be too far west of the area. && .LONG TERM /SATURDAY THROUGH WEDNESDAY/... Key Message(s): - A weak front works into the Southeast this weekend leading to the chance for rain. The upper trough and frontal boundary is forecast to move into, and possibly through the area on Saturday. This brings us our next chance for isolated to scattered showers and thunderstorms. The frontal boundary then likely slows down or becomes quasi-stationary near the coast, keeping the chances for mainly isolated showers and storms into the first part of next week. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... VFR conditions expected through the TAF period. Cumulus have developed across the terminals as light northeasterly winds continue pushing drier air into the region. Through the period high pressure will be in control of the surface with some mid clouds associated with a short wave crossing the area. Winds through the period will be northeasterly at 7 knots or less. EXTENDED AVIATION OUTLOOK...Low confidence in early morning fog and stratus with brief MVFR/IFR restrictions possible at prone AGS/OGB. Widely scattered diurnally driven thunderstorms Saturday through Monday. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$