Pacific Ocean sea surface anomalies (in degrees Celsius) for the weeks centred on Jan. 4 (top) and March 15, 2023 (bottom).

El Niño could arrive by summer

Reuters — La Niña has ended and neutral conditions are expected to continue through the Northern Hemisphere’s spring and early summer 2023, a U.S. government weather forecaster said March 9. El Niño could possibly form during summer 2023 and persist through the fall, they added. “The forecaster consensus favours ENSO-neutral through summer 2023, with elevated