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Droughts in California. The historical and ongoing droughts in California result from various complex meteorological phenomena, some of which are not fully understood by scientists. Drought is generally defined as "a deficiency of precipitation over an extended period of time (usually a season or more), resulting in a water shortage." [1]
Drought worsened in 1988–1989, as much of the United States also suffered from severe drought. In California, the five-year drought ended in late 1991 as a result of unusual persistent heavy rains, most likely caused by a significant El Niño event in the Pacific Ocean and the eruption of Mount Pinatubo in June 1991. [51]
Progression of the drought from December 2013 to July 2014. The 2011–2017 California drought persisted from December 2011 to March 2017 [1] and consisted of the driest period in California's recorded history, late 2011 through 2014. [2] The drought wiped out 102 million trees from 2011 to 2016, 62 million of those during 2016 alone. [3]
The southwestern North American megadrought is an ongoing megadrought in the southwestern region of North America that began in 2000. At least 24 years in length, the drought is the driest multi-decade period the region has seen since at least 800 CE. The megadrought has prompted the declaration of a water shortage at Lake Mead, the largest ...
A drought developed in the Western, Midwestern, and Northeastern United States in the summer of 2020. [ 3] Similar conditions started in other states in August 2020, including Iowa, Nebraska and certain parts of Wisconsin and Minnesota. At the same time, more than 90% of Utah, Colorado, Nevada and New Mexico were in some level of drought. [ 4]
Climate change in California. Animated map of the progression of the drought in California in 2014, during which the drought covered 100% of California. As of December 2014, 75% of California was under Extreme (Red) or Exceptional (Maroon) Drought. The California drought continued after 2014. [1][2]
A map showing the drought in Eastern Canada. The 2012–2013 North American drought, an expansion of the 2010–2013 Southern United States drought, originated in the midst of a record-breaking heat wave. Low snowfall amounts in winter, coupled with the intense summer heat from La Niña, caused drought-like conditions to migrate northward from ...
The 1988–1990 North American drought ranks among the worst episodes of drought in the United States. This multi-year drought began in most areas in 1988 and continued into 1989 and 1990 (in certain areas). The drought caused $60 billion in damage ($155 billion 2024 USD) in United States dollars, adjusting for inflation.