National Weather Service United States Department of Commerce

Flooding Threat Continues in Portions of Texas; Poor Air Quality in the Great Lakes through the Mid-Atlantic

Widespread life-threatening flash and urban flooding continues in south-central Texas, with considerable flooding impacts possible across central Texas. Wildfire smoke is impacting air quality across much of the Great Lakes region into southern New England and the Mid-Atlantic. Monsoonal thunderstorms may produce isolated to scattered flash flooding across the Southwest into the Great Basin. Read More >

A low pressure system is set to strengthen as it travels over the northern plains Tuesday night, and could result in areas of severe thunderstorms capable of producing large hail and damaging winds by early Tuesday evening and on through the overnight hours. An isolated tornado threat also exists.

Currently, if thunderstorms develop, they are timed to move into central and north central South Dakota Tuesday late afternoon/early evening and spread east to the border with Minnesota early Wednesday morning.