The stratospheric polar vortex is entering its seasonal collapse. But that doesn’t mean calm weather is coming. What's expected for April weather?

"An expansive dome of unusually hot temperatures for mid-March will engulf much of the West," the Weather Prediction Center said.

In Arizona and California, multiple locations hit 112 degrees Fahrenheit last week.

Severe weather is underway across the southern and eastern U.S., including parts of the Mississippi Valley and Ohio Valley. Tornadoes, damaging winds and large hail are all possible. Below you'll find ...