So why don't thunderstorms form on hot days, even in the late afternoon or early evening? That answer can be found about a mile or so above the Earth's surface at 850mb - the atmospheric cap.

So, that bottle of water sitting on the table on a hot summer day, waiting for you to take a sip, is more than just refreshing. It’s a mini lesson in how thunderstorms form.

New thunderstorms will likely form on the front after 5 p.m. We are in a level 1 of 5 risk of severe weather, as some thunderstorms may contain strong winds.

A ring of fire is a pattern of thunderstorms that tend to form along the edges of a heat dome. Tens of millions of Americans were under heat warnings and advisories from the National Weather ...