Wireless Emergency Alerts (WEA) are short emergency messages sent by authorized government authorities to alert the public about emergencies in their area. These alerts can include information about severe weather, local emergencies, AMBER alerts for missing children, and other critical situations. WEA messages are sent to compatible mobile devices without the need for users to sign up. They are designed to be brief and provide essential information, helping people stay informed and take necessary actions to ensure their safety during emergencies.