3 Weather Radio Alarms How do you notify others? Tornado sirens are outdoor warning systems to alert people to go to shelter, preferably in a nearby building. The sirens often cannot be heard inside a building so you should have an indoor warning system as well. Use multiple notification methods to contact everyone • weather radio • local media • calling tree • intercom or emergency alert system • door to door notification • text or email • network broadcast message • Do not activate the fire alarm! Identify the most effective notification process to meet the needs and challenges of your building or department. Weather radios are available by request from EH&S .