From the Putnam County OH Sheriff Office Facebook page (10/2):
Tomorrow(Wednesday, Oct 3): First-ever nationwide cell phone test:
FEMA will conduct a nationwide test of the Wireless Emergency Alerts (WEA) and Emergency Alert System (EAS) on October 3. The WEA portion of the test commences at 2:18 p.m. This alert will be on your cell phone and resembles an Amber Alert. The EAS portion (on radio and TV) follows at 2:20 p.m. The test will assess the operational readiness of the infrastructure for distribution of a national message and determine whether improvements are needed.