We’ll, we’ve arrived. Cold rain has begun and we’re only hours away from some fresh Denver snow that promises to kick off the nastiest commute in months. 

The National Weather Service predicts 4 to 6 inches of snow accumulation from midnight Sunday through 3 p.m. Monday in “Fort Collins, Boulder and the western suburbs of Denver, Denver and Castle Rock.”

A winter storm warning goes through Monday afternoon, and it’ll stay cold through the night. Then things should get back to looking a little bit more like fall.

This is more or less on schedule for Denver snow — the earliest snowfalls on record are in September. If we do get 6 inches — or even a localized 8, which NWS says is possible — in some parts of the city, we’ll be in the office wondering what Ruby Hill’s looking like. Here’s a look at a pretty good snow day over there last year.