Thunderstorms swept across Kansas, spawning high winds and raking some areas with hail more than 1 inch in diameter. With winds reported by the National Weather Service at 70 mph, the storm snapped trees in half and caused scattered power outages.
Forecasters are predicting more bad weather for Kansas this week.
Rain, hail and heavy winds in the District of Columbia and Virginia Monday night uprooted trees and ripped down power lines. Thirty-one thousand homes were without power.
In northern Virginia, 30,000 customers were left in the dark, after a storm that some residents said was one of the worst storms they've seen.
Pennsylvania also had a rough time from Sunday through Monday, hit hard by rain and flash floods. Thousands of western Pennsylvania residents were without power. The National Weather Service said Allegheny County got 1.57 inches of rain in 24 hours, breaking the previous record for the day.