A strengthening El Niño, now with over 90% odds of becoming a very strong event through fall and winter per NOAA, represents the dominant driver for first measurable snow timing in 2026, favoring above-normal temperatures across much of the western and central U.S. and muting early cold outbreaks that typically initiate snowfall. Recent model runs from ECMWF and UKMO show reduced snowfall anomalies in northern regions alongside enhanced precipitation potential in the southern Rockies and Intermountain West, consistent with historical El Niño teleconnections, while some high-elevation sites in the Cascades and Canadian Rockies already recorded trace accumulations in late August. Official NWS and NOAA seasonal outlooks for September–November indicate elevated chances of above-average warmth in the Pacific Northwest and northern Rockies, delaying the first 0.1-inch snowfall thresholds at lower elevations until October or later in many areas. Traders should monitor upcoming CPC monthly updates and GFS/ECMWF ensemble runs for shifts in early cold-air intrusions or precipitation type.