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Showers and thunderstorms move across the Central Plains and Midwest while dry air mass covers Southern Plains

An upper-level ridge dominated the central contiguous U.S. during this U.S. Drought Monitor week (Sept. 14 to 20). It was bracketed by an upper-level trough that moved out of the Northeast early in the week, and a Pacific upper-level trough that moved into the West as the week... Read More