BISMARCK, N.D. (KFYR) - Last week was Severe Weather Awareness week, which covered topics from severe thunderstorms to tornadoes to extreme heat and fire danger. One question that may remain is: How ...

The rumble of thunderstorms across the country this week is a noisy reminder that summer is arriving—and with it, the mix of heat, humidity and unstable air that fuels these bursts of wild weather.