Federal computer system to blame for Billings alert blasted out to all Yellowstone County residents Q2 News / Mitch Lagge Yellowstone County Disaster and Emergency Services Director KC Williams explains the federal Integrated Public Alert and Warning System to MTN News Monday afternoon. and last updated 2021-05-03 21:21:40-04 BILLINGS â A fault in a computer system was the reason why an emergency alert message planned to be broadcast to a one-block radius in the Billings Heights was instead sent to everyone in Yellowstone County Monday morning, said KC Williams, director of Yellowstone County Disaster and Emergency Services. Law enforcement officers reached out to the county emergency services department to send a message telling residents in a one-block area to shelter in place due to a hostage situation happening on the 300 block of Stillwater Lane.