Residents across Columbus, Cincinnati, and the wider Ohio Valley can anticipate a mainly dry weekend ahead as the National Weather Service in Wilmington predicts settled conditions, courtesy of surface high pressure. According to a discussion released Saturday morning, temperatures will remain below normal through midweek, though they are set to rebound slightly by Sunday afternoon. Despite this, the middle of next week could see the resurgence of more substantial rainfall.
While clear skies overnight have permitted temperatures to dip, leading to freezing and subfreezing conditions particularly in central Ohio and the lower Scioto Valley into northeast Kentucky, the National Weather Service advises that the "Freeze Warning" and "Frost Advisory" stay in place, with some secluded spots even expected to see temperatures in the upper 20s at daybreak. As the high-pressure system drifts east, a northeast lower-level flow establishes itself, bringing with it a reinforcing shot of dry air into the northern Ohio Valley, but this does not necessarily guard against the possibility of a few stray showers or sprinkles that might sneak in near northern Kentucky late tonight through Sunday morning.
Localized milder temperatures are predicted for tonight as cloud cover spreads, holding temps in the mid-40s for the Tri-State area but potentially mid-30s in central Ohio; rural areas may still experience patches of frost early Sunday. Those looking for a return to warmth will find some solace on Sunday with temperatures across the region hitting around 60 degrees, under what's expected to be abundant sunshine north of the Ohio River, although northern Kentucky may still contend with leftover clouds.
Moving into the workweek, the outlook becomes muddier with surface high pressure giving way to what the National Weather Service refers to as an "uncertain synoptic setup," with potential flattening of an upper-level trough to the south of the Ohio Valley at the start of the week; there's a chance this could herald low-end rain possibilities, although currently, dry conditions might persist. As we progress towards the end of the workweek, a dichotomy in potential weather scenarios emerges due to how a new shortwave trough moving out of the Northern Plains develops – one possibility leads to a surface low formation near the Ohio Valley, indicating a likelihood of wet and breezy conditions, while another outcome is a coastal low development, which would leave the Ohio Valley dry, but as of now, both possibilities seem equally likely.
For aviation interests, VFR conditions are slated to hold throughout the upcoming period, with mid to high-level clouds expected to thicken today, indicating ceiling levels around 8,000 to 10,000 feet by late day through early Sunday. Light northeastern winds are forecasted to continue, staying gentle at around 5 knots or less. The National Weather Service assures that no significant weather is expected to disrupt aviation conditions for at least the next few days.
