On Wednesday (Oct. 4), be prepared for your cell phone to shock you at some point between 1:20 p.m. CT and 1:50 p.m. CT by giving off a very loud buzz. The Federal Emergency Management Agency (FEMA) is going to conduct a nationwide test of its emergency notifications system. The purpose of the test is to assess the effectiveness of FEMA’s Emergency Alert System and Wireless Emergency Alerts. FEMA says all cell phones will receive the message only once. Your phone will receive a message that states “THIS IS A TEST of the National Wireless Emergency Alert System. No action is required.”