Skip to main content

About the UH Outdoor Warning Siren System


The University of Houston’s Outdoor Warning Siren System is part of the UH ALERT emergency notification system. The system is designed to alert students, faculty, and staff  in the event of an emergency when it may be unsafe to be outdoors. The UH Outdoor Warning Siren System provides a quick method of notifying the entire main campus with an audible tone that can be heard outdoors alerting students, faculty and staff to seek shelter indoors. Also, during a real emergency, the UH Outdoor Warning Siren System is used in conjunction with other communication channels like email, the UH ALERT website ( and text messaging.

Types of Incidents:

The types of incidents that may require activation of the siren system are:

  • Severe weather conditions (Tornado warning or other dangerous conditions)
  • Major hazardous material incidents
  • Other conditions that may require an emergency shelter-in-place action

Siren FAQ:

For frequently asked questions about the outdoor warning siren system, please visit our Siren FAQ page.

Stay Informed:

In the event of an actual emergency, the UH ALERT emergency notification system will be used in conjunction with the siren system to disseminate further information to the UH community. All outdoor warning siren alerts are accompanied by a UH ALERT message. All community members are strongly encouraged to keep their contact information up to date in MyUH/PASS so they can receive emergency messages. You can find instructions for updating your cell phone number, email address and other contact information at the UH ALERT website. (