According to the National Oceanic Atmospheric Association (NOAA), there’s now a 60% chance that La Niña will develop between June and August. NOAA still thinks by November 2024 to January 2025, there’s an 85% chance a La Niña will be in effect. The tropical Pacific Ocean continues to trend toward a La Niña phase, coming out of one of the strongest El Niño events on record since 1950.