Area Forecast Discussion
Issued by NWS Columbia, SC

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000 FXUS62 KCAE 151142 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 642 AM EST Fri Dec 15 2017 .SYNOPSIS... A dry front across the northern and western portions of the forecast area will dissipate later this morning. High pressure will then prevail today and Saturday. Increasing Gulf moisture will bring a chance for rain early next week ahead of another cold front. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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Weak low pressure along the coast will move northeastward away from the area today as a shortwave trough moves into the southeastern CONUS. Surface high pressure will begin to build into the area from the southwest. Airmass will remain relatively dry over the area with no precipitation expected. High cloudiness will continue over the area through the day. High temperatures are forecast in the lower 50s to around 60.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/... A weak short wave will move through the region overnight tonight, but with limited moisture to work with, only expect to have partly cloudy skies as cirrus moves through the area. Weak trough will be south of the cwa, with high pressure beginning to build into the area for Saturday. Models showing the center of the high pushing off the coast Saturday night into Sunday. Dry weather is expected tonight into Sunday. Near normal temperatures in the middle to upper 50s Saturday will warm slightly for Sunday with with highs in the upper 50s to lower 60s. Nighttime lows will be in the upper 20s to lower 30s. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... with the surface high pushing offshore Sunday night, moisture on the backside of the high will be returning to the region from the Gulf of Mexico. Models have slowed slightly on the timing for the return of rainfall, seeming to hold off until late Sunday night. Once the rain returns, it should linger across the area through Tuesday night. Final pops and rainfall amounts will be highly dependent upon where the surface front will stall out early next week. Models seem to indicate that a stronger cold front will cross the region Tuesday night, and with a return to dry weather Wednesday and Thursday. Temperatures should be warmer than normal with highs in the 60s Monday and Tuesday. Expect to see highs near normal in the upper 50s to lower 60s Wednesday and Thursday. && .AVIATION /12Z FRIDAY THROUGH TUESDAY/...
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High confidence in VFR conditions at all terminals throughout the 24-hr TAF period. A shortwave trough will push low pressure along the coast northeastward today. High pressure will build into the area from the southwest tonight. Satellite imagery shows cirrus clouds moving over the area which will continue through the day. Cigs will remain VFR with heights above 15kft. Clouds will be on the decrease tonight due to downslope flow in the wake of the low. No fog expected early Saturday morning due to with large dewpoint depressions. Light and variable winds this morning will pick up again after 15z from the west around 10 knots. EXTENDED AVIATION OUTLOOK...No significant impacts expected.
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&& .CAE WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. && $$

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