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The 2020–2023 La Niña event was a rare three-year, triple-dip La Niña. [1] 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 ...
On Thursday, NOAA issued a La Niña watch, explaining that it could replace El Niño before the end of summer. This could have implications for the impending Atlantic hurricane season and beyond.
The 2010–2012 La Niña event was one of the strongest on record. It caused Australia to experience its wettest September on record in 2010, and its fourth-wettest year on record in 2010. [ 2 ] [ 3 ] It also led to an unusual intensification of the Leeuwin Current , [ 4 ] the 2010 Pakistan floods , the 2010–2011 Queensland floods , and the ...
According to NOAA, El Niño and La Niña events typically reach their peak in the late fall and winter, but models have difficulty determining how these events will decay during the spring.
La Niña’s arrival was a long time coming Long-range forecasters at the CPC first raised the possibility of a switch to La Niña back in February 2024 when El Niño was still very strong.
During a time of La Niña, drought affects the coastal regions of Peru and Chile. [229] From December to February, northern Brazil is wetter than normal. [229] La Niña causes higher than normal rainfall in the central Andes, which in turn causes catastrophic flooding on the Llanos de Mojos of Beni Department, Bolivia. Such flooding is ...
A typical La Niña pattern produces a wetter, cooler winter over the northern U.S., while drier, milder weather takes hold of the South. While there have been important caveats that go against the ...
A markedly increased Walker circulation causes a La Niña by intensifying the upwelling of cold deep sea water; which cools the sea surface to below average temperatures. During non-El Niño conditions, the Walker circulation is seen at the surface as easterly trade winds that move water and air warmed by the sun toward the west.