... Dry, pleasant weather continues through Thursday. A cold front will then move through on Friday bringing below normal temperatures. Dry and crisp weekend on tap behind the front.
NEAR TERM /THROUGH TONIGHT/... As of 630 AM Wednesday...
Surface high pressure is building in across the Lower Ohio Valley as an upper-level and sfc-level disturbance slide out of the region.
A look at satellite obs still shows a decent mid-level cloud deck rotating N to S over the northern mountains extending all the way down to the eastern mountains. This has prohibited fog from forming in areas like BKW, CKB, and EKN. River valley fog has been quite healthy in the southern coalfields, Tri-State Area, and the Kanawha River Valley tonight. Charleston and Logan have had dense fog with visibilities dropping to 1/4 MI at times. This will quickly erode this morning after sunrise. Huntington has some fog on the SE side, but due to a steady 10 knot wind at 925mb it has not fully blanketed the city. Parkersburg is in the same boat.
Today looks to be a pristine fall day with mostly clear skies (after any morning fog mixes out) and highs in the upper 60s to lower 70s across the lower elevations with mid 50s to lower 60s in the mountains. Winds may increase to 4-7 MPH this afternoon due to mixing.
SHORT TERM /THURSDAY THROUGH FRIDAY/... As of 415 AM Wednesday...
Dry weather will persist across the region on Thursday with seasonable temperatures. A weak upper level wave will move through the region, but will just result in increased cloud cover. A cold front will then progress through the area on Friday morning, but should only result in isolated showers, along with breezy conditions. The best chance for rainfall will be across the northeast mountains. Much cooler temperatures filter in behind the front, with high temperatures on Friday generally 5-15 degrees cooler than Thursday, or in the mid 50s to mid 60s across the CWA.
LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... As of 415 AM Wednesday...
High pressure builds into the region for the weekend and early next week following the passage of the cold front. This results in dry, but rather chilly weather for the weekend, along with plenty of sunshine. High temperatures on Saturday will be in the mid to upper 50s for the lowlands, with mid 40s to low 50s for the mountains. High temperatures on Sunday will be a few degrees warmer, with the same trend continuing into early next week. Temperatures are progged to return to near normal by Tuesday.
Given the chilly temperatures over the weekend, frost will be possible on Friday, Saturday, and Sunday nights, along with river valley fog. Saturday night is progged to be the coldest night, with confidence increasing on a potential widespread frost across the region. Sub-freezing temperatures are expected Saturday night for the mountain valleys, and could also occur in some of the typical lowland valley cold spots.