At three in the morning the only things moving on Ken Pratt Boulevard are the storm and a plow. Camel Snow Remove, LLC works that hour deliberately, pushing driveways and lots, opening walkways, laying de-icer where shade will hold the glaze long past sunrise. Front Range storms are unforgiving about timing: what is powder at two becomes a rutted sheet by seven if nobody touches it. The whole measure of a night is a person stepping out at dawn onto bare concrete and never once thinking about how it got that way. Then the amber lights swing back onto an empty street and go looking for the next drive.