Monday, November 9, 2026 Morning Edition Story Atlas Storylines Almanac Verification Desk Archive
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Storyline · concluded · Season thread

El Niño / La Niña 2023

Every dispatch on this road this season, in order: the thread a daily newsletter leaves behind when you read it end to end.

1Dispatch
1Days · AUG 1–AUG 1
I-34El Niño
Where the dispatches were filed1 of 1 placed
Map of North America and the Atlantic with a shield at each dispatch's place Natural Earth · places from the headlines
El Niño and warm Atlantic ocean waters fight it out FIGURE 1 AUG 1 · I-34 EL NIÑO El Niño and warm Atlantic ocean waters fight it out
The route · every exit
  1. Exit 1 · AUG 1 El Niño and warm Atlantic ocean waters fight it out Equatorial Pacific
END Final dispatch AUG 1.

Why I-34?

El Niño stories ride Interstate 34, after the Niño-3.4 region of the equatorial Pacific whose temperature defines the phase.

Niño-3.4

The central-Pacific box, 5°N–5°S and 120°–170°W, whose sea-surface anomaly defines El Niño; the shield number of this road.

El Niño / La Niña

The warm and cool phases of the Pacific's slow oscillation, each tilting the odds on the season downstream.

Teleconnection

A weather pattern in one place statistically tied to conditions thousands of kilometres away.