If highs today are stuck in the 40s across KY with a thickness of 540 dm and 850 mb temps of -3 then Sunday could be a blustery, raw day with highs from 43-48 over Bowling Green and 38-43 over Louisville and Lexington.
The developing Nor’easter will pull arctic air into the region as explosive cyclogenesis occurs off the Delmarva. The thickness will be around 530 dm with 850 mb temps of -3 to -6 over KY. I think an accumulating wet snow could fall along the northern fringe of the precipitation shield Saturday-Sunday, primarily north of the Ohio River. In addition, I think that there could be flurries or snow showers into the Bluegrass Sunday and/or Sunday night as the trough axis moves across the region. I think temperatures will remain in the upper 40s on Monday before rebounding to the lower 60s on Tuesday.
