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Arthur Rothstein's Farmer and Sons Walking in the Face of a Dust Storm, a Resettlement Administration photograph taken in Cimarron County, Oklahoma, in April 1936. The Dust Bowl was a period of severe dust storms that greatly damaged the ecology and agriculture of the American and Canadian prairies during the 1930s.
See above for additional information on this drought. In 2013 and early 2014, the California drought returned and intensified, expanding to much of the western US. In 2013, many places in California set all-time low precipitation records, with very little measurable rain falling across much of the state from January 2013 into mid-February 2014.
Excessive heat and drought problems affected the United States in 1934–35 from the Rocky Mountains, Texas and Oklahoma to parts of the Midwestern, Great Lakes, and Mid-Atlantic states. These droughts and excessive heat spells were parts of the Dust Bowl and concurrent with the Great Depression in the United States.
The Seasonal Variation of Effective Moisture is described by two indexes: The Aridity Index (Ia), used in wet climates to identify and quantify the severity of drought conditions, and the Humidity Index (Ih), used in dry climates to identify and quantify the severity of wet conditions. [1] These indexes are represented by the equations:
Half of the state is in moderate to severe drought and the other half is abnormally dry. What are the conditions in your county? This map shows half of NC is in drought.
The 1931 China floods, or the 1931 Yangtze–Huai River floods, was a devastating flood that occurred from June to August 1931 in China, hitting major cities such as Wuhan, Nanjing and beyond, and eventually culminated in a dike breach along Lake Gaoyou on 25 August 1931. Fatality estimates vary widely.
Many experienced long stretches of daily maximum temperatures 100 °F (38 °C) or warmer. Drought conditions worsened in some locations. Other states were only slightly warmer than average. The heat wave and drought largely ended in September, although many states were still drier and warmer than average. Many farmers' summer harvests were ...
From left, clockwise: Dorothea Lange's photo of the homeless Florence Thompson shows the effects of the Great Depression; due to extreme drought conditions, farms across the south-central United States become dry and the Dust Bowl spreads; The Empire of Japan invades China, which eventually leads to the Second Sino-Japanese War.