Alert & Warning

The City of Aliso Viejo utilizes multiple alert and warning systems to ensure emergency information is relayed to the public. Some systems require you to sign up while others are pushed to your cell and landline phones, televisions, and radio based on your location.

Alert and Warning Systems Flyer

Nixle Alert System

Nixle is a mobile alert system that keeps you up-to-date with relevant information from local public safety departments and emergency management. This city sponsored alert system offers emergency alerts via text and email. There are 4 ways to register:

  1. Text 92656 to 888-777
  2. Text ALISOVIEJO to 888-777
  3. Go to the Nixle website
  4. Use the sign-up box:


By registering with AlertOC, time-sensitive voice messages from the County or City in which you live or work can be sent to your home, cell or business phone. Text messages may also be sent to cell phones, email accounts and hearing-impaired receiving devices. AlertOC is operated by the County of Orange in collaboration with local cities. 

Register for AlertOC. For a summary of our different alert systems, please download this flyer (PDF) and keep it handy.

Integrated Public Alert & Warning System (IPAWS)

Federal Emergency Management Agency (FEMA) built IPAWS to ensure that under all conditions the President of the United States can alert and warn the American people. Federal, state, local, tribal, and territorial authorities also have the opportunity to use IPAWS to send alerts and warnings within their jurisdictions. IPAWS improves alert and warning capabilities by allowing alerting authorities to deliver alerts simultaneously through multiple communications devices reaching as many people as possible to save lives and protect property. These communication pathways include:

The City of Aliso Viejo has the ability to send Wireless Emergency Alerts (WEA) to the public in addition to the Orange County Emergency Management Division, California Office of Emergency Services, and FEMA. All other local IPAWS alerts are disseminated by the Orange County Emergency Management Division, California Office of Emergency Services, and FEMA.