La Niña is a climate phenomenon in which the central and eastern Pacific Ocean become cooler than normal. This cooling changes atmospheric pressure and shifts global wind patterns.
Because the Pacific drives much of Earth’s weather, La Niña affects jet streams, storm tracks, rainfall, and temperatures worldwide. It often brings colder winters to North America, wetter weather to Australia and Southeast Asia, and can increase Atlantic hurricane activity.
La Niña is fading faster than expected. El Niño is already on the horizon for later in 2026. The Polar Vortex has been disrupted. Together, those signals point to elevated variability — the real question isn’t whether warmth returns, but how sharply it will alternate with cold.
Spring 2026 Forecast Flip: La Niña Collapses, El Niño Emerges – U.S. and Canada in March Read Post »
A detailed February 2026 weather outlook for the United States and Canada. Decade-by-decade temperature trends for major cities, plus impacts on Super Bowl LX, NBA All-Star Weekend, Daytona 500, and Canada’s Family Day.
February 2026 Weather Forecast for the US and Canada Read Post »
A major stratospheric warming and polar vortex collapse is underway, with peak disruption expected by mid-February 2026.
Polar Vortex Collapse Confirmed : Winter and Early Spring Weather Read Post »
Fading La Niña points to a wet Pacific Northwest/northern Rockies, a drier Southwest, and higher week-to-week variability across the rest of the U.S. as ENSO heads toward neutral.
La Niña is breaking down fast. ENSO-neutral is next—with a possible El Niño later in 2026—bringing sharper swings, late-season cold risks, and active storm tracks.
