Cold in the eastern U.S. can be a side effect of a sudden stratospheric warming event. But how reliable is it?
With an analogy drawn from the gym, Michelle L'Heureux explains (again!) how weather (your workout) is not climate (your fitness).
El Niño is near peak strength. Our blogger covers current and potential future conditions in the tropical Pacific.
From record-high summer heat to the greening of the Arctic, this collection of images highlights several key "vital signs" of the Arctic.
Drought parches the central Amazon in October 2023
October 30, 2023
El Niño is on the prowl in the tropical Pacific. How loud do forecasters think it's going to roar?
El Niño communicates with North America by tweaking the jet stream. How does all that work?
Arctic sea ice minimum at sixth lowest extent on record in 2023
September 25, 2023
The September 2023 ENSO Outlook predicts El Niño will stick around at least through January-March 2024. But don't just take it from us, hear directly from the Pacific Ocean and tropical atmosphere, who join the blog to answer some questions.