This Week's Drought Summary (2/19)

February 21, 2019

Powerful, late-winter storms crossed the country, delivering periods of heavy precipitation in much of the West; significant snow across the North; and additional rain in the Ohio Valley and mid-South. Lowland flooding affected several river basins in the central and eastern Corn Belt, extending southward into the northern Mississippi Delta. Meanwhile, much of the North remained under a thick blanket of snow. Extremely heavy snow, totaling a foot or more, fell across portions of the upper Great Lakes region on February 12. The following day, snow spread into the Northeast. Later, snow returned across portions of the northern Plains and upper Midwest from February 14-16. Elsewhere, the average water content of the Sierra Nevada snowpack reached 30 inches by mid-February, according to the California Department of Water Resources. This was up from 17 inches at the beginning of the month—and exceeds the normal Sierra Nevada snow-water equivalency for an entire winter. California’s heaviest precipitation fell on February 13-14, resulting in flash flooding and debris flows. One of the most damaging mudslides struck in Sausalito, California, near San Francisco.