1:20

Different types of thunderstorms explained and why some strike without warning

Front-driven storms form along a dividing line between humid warm air out ahead of a line of storms and cooler, drier air behind it. That contrast is exactly why thunderstorms develop.

1:27

HEAT ALERT: Warm today, heat advisory for Thursday & Friday

Temperatures surge into the 90s through Friday with heat index values near 100 degrees, while multiple rounds of thunderstorms could bring damaging winds and localized flooding before a more comfortable weekend arrives.