FILE - In this Feb. 18, 2018, file photo, sandbars fill the Rio Grande north of Albuquerque, N.M. Weather forecasters said sparse rainfall in the U.S. Southern Plains since autumn has caused drought conditions to worsen, especially in the Four Corners region of Colorado, Utah, Arizona and New Mexico. The U.S. Drought Monitor says moderate to extreme drought also persists in parts of Oklahoma and Texas. (AP Photo/Susan Montoya Bryan, File)

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