A cloud forecast reveals best spots to see the total lunar eclipse. "Strong tornadoes could strike after dark Friday, which is extremely dangerous, especially during the overnight hours while many ...

Nighttime tornadoes are also a concern: "Strong tornadoes could strike after dark Friday, which is extremely dangerous, especially during the overnight hours while many people are asleep ...

Those that form could be unusually strong and long-lasting ... and overnight and impact places such as Atlanta after dark. Nighttime tornadoes are nearly twice as likely to be deadly as those ...

In some extreme cases, thunderstorms can spawn a derecho, a long-lived windstorm with gusts over 100 mph, strong enough to ...