Extreme danger warning

A Extreme Danger Warning (SAME Code: EDW) is a non-weather warning alert issued through the Emergency Alert System (EAS) to warn the public about an incoming killer that poses a threat to civilians. It is basically issued by law enforcement agencies, local emergency management, civil authorities and is also relayed by the National Weather Service.

Issuance
When a killer is formed in land and is already in progress, an extreme danger warning is used for the affected area/areas. Then, an extreme danger watch is issued for areas in the path of the killer.