La Nina 2024 2025 Usa. The map shows snowfall trends during the nine weak la niña winters between 1959 and 2024. A graphic explaining how la nina, a marine heat wave, and the jet stream influence the snowfall forecast.
La niña is expected to return this fall. There is a 57% chance of la niña emerging from now to december, and it is expected to persist through january to march 2025, a u.s.
