Winter has tightened its grip on Ohio, as a system moves across Columbus, Cincinnati, Wilmington, and beyond, according to the National Weather Service in Wilmington. The area braces for a significant snowfall expected to accumulate widely, with some areas anticipating heavy snowfall throughout Saturday afternoon into the evening. Following this event, a harsh wave of Arctic air will lead to bitterly cold temperatures persisting into Monday.
Temperatures are forecasted to decline through the afternoon, arriving at the middle teens in the northwest to near 30 in the southeast by evening. The National Weather Service predicts, "Forecast lows tonight drop off to the single digits overnight." With winds of 10 to 15 mph, the wind chill temperatures are expected to fall below zero, and the Whitewater and Miami Valleys could experience chills down to 10 below or colder. In response, a cold weather advisory has been issued for the region, effective tonight through Monday morning.
The snowfall will not be a light affair, as the heaviest accumulations between I-70 and the Ohio River are projected at 3" to 6". This estimation comes in light of a minor southward shift in the heaviest snow axis. The snow's nature is expected to be a drier, more fluffy kind due to snow-to-liquid ratios increasing to above 20:1. To inform and prepare residents, warnings are being upheld or issued: "The heaviest snow aligns with the previous winter storm warning - so this headline was continued," says the NWS.
Post snowfall, Sunday will endure the season's chill with high temperatures barely making it above 10 degrees across eastern Indiana and western Ohio, peaking in the mid-teens along the Scioto River Valley. Wind chill readings could plummet to 10 to 15 below zero by early Monday morning, "Have continued the cold weather advisory thru Monday morning," according to the National Weather Service. As the Arctic grip loosens, the region expects a substantial warm-up with temperatures potentially reaching into the 50s by Thursday, before another cooldown to near or below normal by Friday.
Travel during this period, especially by air, is set to be impacted. As snow develops and moves east-southeast, visibility will likely reduce to IFR or LIFR conditions, with accumulating snow anticipated across all TAF sites in the mid-afternoon through the evening. Aviation operations should anticipate ongoing disruptions into Sunday and potentially beyond. The NWS advises, "MVFR ceilings will likely continue into the day on Sunday."
