Cold air will continue to flow southeastward across the region today. A disturbance will track across Ohio and Pennsylvania later this afternoon into this evening. Scattered snow showers are likely across the entire area with the heaviest and most persistent snow showers occurring across the snow belt of Erie and Crawford counties. Light accumulations are expected.
Lake effect snow showers will begin to organize and intensify later this afternoon or this evening as the disturbance passes. Some locally heavy snow squalls will be possible across the snow belt areas overnight with locally several inches of snow possible. Outside of the snow belt, scattered snow showers are likely with light accumulations expected.
On Sunday, the snow showers and squalls will persist through the morning and into the early afternoon hours, then gradually diminish during the late afternoon as high pressure builds across the area. Additional accumulations is likely across the snow belt.
High pressure will move across the area Sunday night and Monday providing the region with a brief period of dry weather. Then, a storm system will approach from the west Monday night bringing the threat of rain or even a wintry mix of precipitation.
Colder air will change the rain or mixed precipitation over to snow on Tuesday. There are still a lot of uncertainties regarding the track of this system and the type and amount of precipitation we will see. Be sure to stay tuned for updates as the system approaches.