Extreme weather conditions hit southern US, leaving millions at risk.

More severe weather is expected to hit the East Coast on Tuesday, with heavy rainfall and flash flooding risks. The south-central US, including Texas, will continue to experience a multi-week heat wave with highs in the 100s. Some areas could break or tie record highs, and there is a risk of thunderstorms with damaging winds and large hail in portions of northern Oklahoma and southern Kansas. Florida residents could also expect highs in the mid-90s with the potential to break or tie records.