Several parts of Arizona, including Phoenix and Tuscon, have been issued with severe flood and thunderstorm warnings, with wind gusts of up to 60 miles per hour expected.
Around 30 years ago, researchers first detected gamma-ray emissions inside storms that are now associated with lightning. But what is the nature of the relationship between the two phenomena?
"We want you to know it's not us," WICS-TV meteorologist Joe Crain told viewers in a Wednesday weather segment, complaining about the Sinclair station's Code Red alerts.
Storm and flood warnings remain in place after days of deadly weather in the Plains and Midwest.
"Strong to severe storms will be possible today," the National Weather Service (NWS) has warned.
"I fear casualties/changed lives today. These storms should not be entertainment," one meteorologist warned.
Web browsing's ability to detect cancer and the reason storms are getting worse are among the 5 things we learned in Tech & Science this week.
Hint: All those extra particles in the air aren't helping.
The storms are coming. This beast of a computer will hopefully buy us some time.
The storms that started over the Memorial Day weekend have destroyed hundreds of homes, swept away bridges and stranded more than 2,000 motorists on roads.
Researchers capture video footage of lightning and thunder and create images from the acoustic data generated.