Timing is everything and that was certainly the case with a quick-moving Alberta Clipper system that moved through the area overnight into the Thursday morning commute.
Though most of the area saw a coating to about an inch or so of accumulation, there were numerous motor-vehicle crashes beginning just before dawn when a jackknifed tractor-trailer led to the closure at the start of the span of the new Tappan Zee Bridge in Tarrytown.
A couple of hours later, a multi-vehicle pileup and severe icing caused the closure of a stretch of the northbound Taconic State Parkway near the Putnam/Dutchess border.
Numerous school districts had delayed openings, and two were closed for the day. For the rundown, click here. A minor crash involving a school bus occurred outside the Roaring Brook School on Route 120 in Chappaqua
Orange County saw the most widespread accumulating snowfall of any county in the Hudson Valley, with about 2.5 inches reported in Monroe just before 8 a.m.
Westchester, Putnam, Rockland and Dutchess counties all saw on average between a coating and 1.5 inches of accumulation in most spots. The highest accumulation amount in those four counties reported was 2.5 inches in Harrison at 8:30 a.m.
Armonk reported 1.4 inches at the same time, Nyack 1.5 inches at 8 a.m., Somers 1.2 inches at 9 a.m., Carmel 1.3 inches at 8 a.m. and Poughkeepsie 1.5 inches at 8:30 a.m.
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