Northern United States
Some El Niño winters have favored warmer conditions across parts of the northern U.S. This is a tendency, not a uniform outcome.
Understand what ENSO can tell you, and what it cannot.
The regional notes below describe broad historical context. For current probabilities, open the CPC seasonal outlook.
ENSO is one influence on a U.S. winter. The strength, timing, and location of tropical Pacific warmth can differ between events. Other ocean and atmospheric patterns also matter.
A seasonal temperature or precipitation outlook describes probabilities across a large region and a multi-month period. It does not tell you whether a particular weekend will be snowy.
Current CPC seasonal outlookSeasonal precipitation probabilities do not directly describe snowfall totals. Temperature, elevation, and individual storms affect what reaches the ground.
Some El Niño winters have favored warmer conditions across parts of the northern U.S. This is a tendency, not a uniform outcome.
A more active southern storm track can favor wetter conditions in parts of the South. Timing and local outcomes vary.
ENSO alone is not a reliable snow forecast for an individual resort. Use local forecasts for travel and mountain conditions.
Historical impact guidance: NOAA Climate.gov. Current outlook: NOAA / CPC.