National Weather Service United States Department of Commerce

Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

A hot and humid air mass will remain in place over the region today into Monday, creating unstable conditions which may lead to additional periods of strong to severe thunderstorms. Timing and exact location of severe storms today are somewhat uncertain, but eastern SD may be a target.