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Forecast El NiñoENSO as a trajectory · U.S. first, the world next
Route 08 · Trajectory

What comes after a super El Niño?

A strong El Niño spends the heat stored along the equator, and the deficit it leaves often tips the Pacific into La Niña. For the southern U.S. that can mean the drought returns a year later. This route matches the whole path, the last three years plus the forecast, against every path since 1940, and shows what happened next.

The path so far

Winters by Dec–Feb MEI-ERA5

The paths that match

This event's path, the 51 SEAS5 members, and the analogs

The winter after

What the analogs did next

The phase of the winter that followed each matching event (Dec–Feb MEI-ERA5, ±0.5σ).

After every strong El Niño since 1940

The same question asked without any matching: every winter with Dec–Feb MEI-ERA5 of +1.5σ or more, and the winter after it.

Strong winterDJF MEINext winterNext DJF

How much have analogs known?

Leave-one-out, 1943–2024