winter-anomalies-three-weaker-la-nina-events-grid.png

Three past winter (December-February) precipitation anomalies chosen because they were weaker La Niña events like the one predicted this winter (2024-25). The top left panel reproduces the expected La Niña precipitation anomalies based on past winters from 1959-2024. The other panels show precipitation anomalies for a past La Niña winter with a better match score (2017-18), so-so math score (2005-06), and poor match (2022-23). Green shading shows where conditions are expected to be wetter and brown shading shows where it is expected to be drier. Map by climate.gov based on analysis by M. L’Heureux (reference).