Good morning. Maryland. I'm Aaron Jolly. That crisp blue sky you're seeing right now? Don't let it fool you. A classic cold air damming setup is about to make things interesting. High pressure up near Ottawa is shoving cold air down the mountains like a wedge, while a disturbance rolls in from the Ohio Valley. Translation? We're about to get messy. In the next 24 hours. Baltimore starts at 29 degrees under partly cloudy skies. Snow develops after 9 A.M. — nothing major, less than half an inch, mostly sticking to grass. You'll hit 36 degrees by afternoon. but tonight's the real story. Snow flips to freezing rain after 3 A.M. Temps hold at 31 degrees. That's when roads get slick. Central Maryland follows the same script. Highs near 35 degrees with snow starting mid-morning. Less than half an inch expected. Tonight brings snow, patchy fog, then a wi ...