If there's one thing we excel at, it's getting cold air in place just hours before a late-winter storm when the previous days have highs near 60F. #LockItIn
At this point is probably not a warm layer, it’s just shallow stratus. Clouds aren’t deep enough to have ice nuclei available for snow crystals. So you get weak precipitation as fzdz.
Freezing drizzle is icing everything up. Untouched sleet covered driveways and sidewalks are just a solid glacier, can walk across without leaving a trail. Plowed surfaces are now skating rinks. Kids are missing out on a bunch of snow days.