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Mechanisms of producing precipitation include convective, stratiform, [6] and orographic rainfall. [7] Convective processes involve strong vertical motions that can cause the overturning of the atmosphere in that location within an hour and cause heavy precipitation, [8] while stratiform processes involve weaker upward motions and less intense precipitation over a longer duration. [9]
A drought is a period of drier-than-normal conditions. [1]: 1157 A drought can last for days, months or years. Drought often has large impacts on the ecosystems and agriculture of affected regions, and causes harm to the local economy.
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 southern United States, wreaking havoc on crops and water supply. [1]
The drought began due to a strong La Niña developing by the summer of 2010 which brings below average rainfall to the southern United States. The effects of the La Niña could be noticed immediately as much of the south receives important rainfall during the summer, and this was the driest summer for Texas and Georgia in the 21st century thus far, and much of the south received record low ...
Known for its glowing swaths of yellow, orange and red, the U.S. Drought Monitor has warned farmers, residents and officials throughout the nation of impending water scarcity every week since 1999
Also in drought conditions were Wyoming, Oregon and Arizona. Over the course of 2021, conditions improved in the Northeast but worsened in the Western United States. As of June 2021, "nearly the entire region (97 percent) [was] facing abnormally dry conditions." [5] Drought also affected a wide area of Mexico in 2021, as well as the prairies of ...
California is the most populous state and largest agricultural producer in the United States, and as such, drought in California can have a severe economic as well as environmental impact. The historical and ongoing droughts in California are caused by lack of rainfall (or snowfall), higher average temperatures , and drier air masses in the ...
Temperatures above the historical average have exacerbated the drought. Despite some frosty mornings over the interior Northeast, the dryness of both the air and the ground has led to warm afternoons.