Welcome back to a new era of the ENSO blog.
Natural Climate Patterns
Watch heated water accumulate below the surface of the tropical Pacific as last summer's La Niña gave way to this summer's El Niño.
The tropical Pacific climate appears to be leaning toward La Niña this winter. How have past La Niñas affected snow across Canada and the United States?
Atmospheric rivers soak California in early January 2026
January 15, 2026
Our blogger gives us a sci-fi themed update on the status of ENSO. Can you count all the references?
The U.S. tornado season to date has been very active. Our guest blogger explains how the lingering influence of La Niña might have played a role.
Many people will say “climate is the average of weather.” That’s not wrong, but it’s not a complete explanation.
After just a few months, La Niña conditions have ended and the tropical Pacific has returned to neutral conditions. Our blogger gives you the scoop on La Niña's end and the forecast for the rest of 2025.