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Strong El Niño Could Boost Colorado Snowfall
18 Aug
Summary
- Strong El Niño expected for fall/winter 2026/27.
- El Niño could increase moisture for snowstorms.
- Front Range snow requires specific storm conditions.
Colorado has a potential for increased snowfall this winter, driven by an anticipated strong El Niño event. Forecasters from NOAA have indicated a 90% probability for a very strong El Niño during the 2026/27 fall and winter period, with sea surface temperatures already showing significant warming.
This robust El Niño could strengthen more than previous events dating back to 1950. While not a guarantee of record snow, it stacks the odds for more moisture during developing snowstorms, particularly benefiting southern Rockies areas like Wolf Creek and Telluride.
For Denver and the Front Range to experience heavy snow, a specific atmospheric setup is required. This involves Pacific moisture from the southwest interacting with a cold storm system near southeastern Colorado, creating upslope winds. All these elements must align for significant Front Range snow accumulation.
