The National Weather Service in Buffalo has issued a Winter Weather Advisory for several counties in Upstate New York, effective until 7 a.m. Thursday. Snowfall is anticipated throughout Wednesday, transitioning to localized lake effect snow overnight into early Thursday. Areas such as Oswego and Lewis counties are expected to receive an additional 2 to 4 inches of snow on Wednesday, with 2 to 5 inches of lake effect snow possible overnight in the most persistent bands. Wayne and Northern Cayuga counties will also experience similar conditions, with cities like Newark and Fair Haven being impacted.