Tornado Warning?

So there is a tornado warning in effect in Washington, DC right now. Apparently warnings are put into effect if a tornado has been seen within a tornado watch zone. So I guess that means there was a tornado in the DC area. Freaking crazy. There is a huge storm front moving through the area, meaning we have had over an inch of rain within the past 5 hours, and the tornado warning is in effect until 2am. I am so not used to this kind of weather...