Storms leave widespread outages across Texas, cleanup continues after deadly weekend across U.S.

Strong storms with damaging winds and baseball-sized hail pummeled Texas on Tuesday, leaving more than one million businesses and homes without power as much of the U.S. recovered from severe weather, including tornadoes, that killed at least 24 people in seven states during the Memorial Day holiday weekend.

Voters in the state's runoff elections found some polling places without power. Roughly 100 voting sites in Dallas County were knocked offline. Dallas County Judge Clay Jenkins declared a disaster area and noted that some nursing homes were using generators. "This ultimately will be a multi-day power outage situation," Jenkins said Tuesday.

More rough weather and heavy rains were forecast for the Dallas area Tuesday night. Heavy thunderstorms also were plowing toward Houston, where officials warned that winds as strong as 70 mph could cause damage less than two weeks after hurricane-force winds knocked out power to more than 800,000 homes and businesses.