A strong El Niño event, with NOAA placing over 90% odds on a very strong episode through winter and 75% on record-breaking intensity for October-December, is shaping early-season precipitation patterns favoring the Southwest and parts of the Rockies. As of early October 2026, National Weather Service discussions highlight a hybrid storm system poised to deliver the season’s first measurable snow to high elevations above 11,000 feet in Colorado’s Rockies on October 1, with totals potentially reaching a couple inches at peak levels while lower terrain sees rain. Climate Prediction Center outlooks and historical analogs indicate typical first snow windows for northern Rockies and Plains in October, with Great Lakes and Northeast sites often following in November; traders monitor NWS model runs, updated weekly winter weather probabilities, and station-specific observations from KIND or similar for resolution thresholds.