2020–2023 La Niña event
Sea surface temperature anomalies across the world in November 2020 during the 2020–2023 La Niña event. | |
| Meteorological history | |
|---|---|
| Formed | August 2020 |
| Dissipated | March 2023 |
| Overall effects | |
| Damage | Significant |
| Areas affected | Pacific Ocean and surrounding areas |
The 2020–2023 La Niña event was a rare three-year, triple-dip La Niña. The impact of the event led to numerous natural disasters that were either sparked or fueled by La Niña. La Niña refers to the reduction in the temperature of the ocean surface across the central and eastern equatorial Pacific, accompanied by notable changes in the tropical atmospheric circulation. This includes alterations in wind patterns, pressure, and rainfall. The cold phase of the El Niño Southern Oscillation (ENSO), known as La Niña, typically produces contrasting effects on weather and climate compared to El Niño, which is the warm phase of the same phenomenon.