A tornado watch has been issued for the entire region until midnight. This is a particularly dangerous situation (PDS).

A PDS watch isn’t used often and makes weather watchers take notice because it signifies ... Your local National Weather Service office issues tornado warnings, however. According to the Storm ...

or PDS, tornado warnings in effect. The first is near Lake City, where a tornado emergency has just been issued -- impacting parts of Craighead and Poinsett counties and potentially crossing right ...

Tornado watches are issued for large areas if tornadoes are possible. A warning is issued for a smaller area when a tornado has been spotted.