Super El Niño to Peak in January, Impacting U.S. Winter Weather Patterns
Super El Niño to Peak in January, Impacting U.S. Winter Weather Patterns
US · Published Sep 3, 2026
The 2026-2027 winter season is set to be heavily influenced by a Super El Niño, with January expected to be the peak period for its atmospheric effects.
According to multiple forecasts, including those from NOAA, ECMWF, and UKMO, the El Niño will drive an active southern storm track, bringing above-average snowfall to regions like California's Sierra Nevada, Utah's Wasatch canyons, and the southern Rockies.

Impact & Risks

The Super El Niño is expected to bring heavy snowfall to the Sierra Nevada, Utah, and the southern Rockies, benefiting ski resorts in these regions. However, the Pacific Northwest, northern Rockies, and Great Lakes are likely to experience below-average snowfall due to warmer temperatures and a deflected storm track. The weakening Polar Vortex could lead to sudden cold air outbreaks in the central and eastern U.S., creating short-lived but intense winter conditions. Skiers in the northern tier may see occasional powder days despite an overall mild winter. The variability in weather patterns could also pose challenges for travel and outdoor activities, particularly in regions prone to icy conditions.

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