Boulder is part of Colorado
Every Colorado region shares one system — the same maps, the same live radar, the same climate record. Boulder sits at the exact spot where the plains hit the wall, and everything here follows from that. Upslope storms stall against the Front Range and drop their heaviest snow on this county, the 2013 flood came out of these canyons, and the Chinooks and the Marshall Fire wind run downslope through town at highway speed.