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La Niña was last in place from 2020 to 2023 — a period of time that included California's driest three years on record. The arid stretch shrank reservoirs to record lows, triggered Southern ...
The Santa Anas are katabatic winds (Greek for "flowing downhill") arising in higher altitudes and blowing down towards sea level. [7] The National Weather Service defines Santa Ana winds as "a weather condition [in southern California] in which strong, hot, dust-bearing winds descend to the Pacific Coast around Los Angeles from inland desert regions".
La Niña conditions typically span about 9 to 12 months, but can go as long as two years, according to the National Oceanic Atmospheric Administration. Ullrich said the current episode is a record ...
Meteorological scientists have observed that La Niñas have become more frequent over time. [12] Increasingly dramatic fluctuations in California weather have been observed in the 21st century. In 2015, California experienced its lowest snowpack in at least 500 years; the 2012–15 period was the driest in at least 1200 years.
Los Angeles averages only 14.7 inches (373 mm) of precipitation per year, and this is lower at the coast and higher in the mountains and foothill cities. [24] Snow is extremely rare in the Greater Los Angeles area and basin, but the nearby San Gabriel Mountains and San Bernardino Mountains typically receive a heavy amount of snow every winter ...
There is a 65% chance that La Niña conditions will develop between July and September. The climate pattern is associated with dry weather in Southern California.
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.
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 ...