The National Weather Service has issued a severe thunderstorm warning until 6:30 a.m. for Ripley and Dearborn counties in Southeast Indiana, northern Boone County in Northern Kentucky and western Hamilton and southwestern Butler counties in Southwest Ohio.

They're much more common than tornadoes. Here's why severe thunderstorms are dangerous and why you should take action when a warning is issued.

"The storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, gusty winds are still possible with these thunderstorms," states the NWS Los Angeles/Oxnard CA. The warning is in effect until 9:30 p.m.