Start Of La Nina 2024. Noaa projects an 85 percent chance that the enso cycle will shift to its neutral phase between april and june 2024, and then a 60 percent chance a la niña will develop between june and august. This can affect atmospheric weather patterns across the globe.

This can affect atmospheric weather patterns across the globe. In an update thursday, forecasters explain there’s a 71% chance la niña conditions will emerge sometime between september through november and last through the winter months.