Warning Center

Warning Center
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California State Warning Center

The California State Warning Center (CSWC) is staffed 24 hours a day, seven days a week. The mission of the CSWC is to be the central information hub for statewide emergency communications and notifications. The CSWC is staffed with Emergency Notification Controllers, Emergency Services Coordinators and Program Managers. The CSWC serves as a highly reliable and accurate “one-stop” resource for emergency management, law enforcement, fire, and key decision making personnel throughout the state.

Last year, staff in the CSWC handled over 74,000 calls and more than 96,000 actionable emails. The CSWC also received reports of almost 10,000 hazardous material spills, which resulted in more than 395,000 hazardous materials notifications to federal, state and local government agencies. In addition, CSWC staff made over 1,155,000 notifications due to weather related warnings, fires, seismic incidents, and other significant and potentailly significant incidents that did or could have emergency management impacts to California.

​​CSWC Responsibilities

The CSWC has the responsibility to receive, coordinate, verify and disseminate information pertaining to events which occur within California or that could affect California. Information received by the CSWC is coordinated between Cal OES and other sources to ensure that the information which is disseminated is both timely and accurate. Procedures have been established for the handling of such incidents as:

Hazardous Materials Spill Reports

  • Earthquakes

  • Tsunamis

  • Floods

  • Major fires

  • ​​Missing or overdue aircraft

  • Search and rescues

  • Radiation incidents

  • Conducts Governor, executive staff, agency and departmental notifications

  • ​​Nuclear Incidents

  • Weather watches and warnings
  • Train derailments

National Oceanic and Atmospheric Administration - National Weather Service

The CSWC works alongside the National Weather Service (NWS) to provide weather, hydrologic, and climate forecasts and warnings for California for the protection of life and property and the enhancement of the national economy.

NOAA Email and SMS Alerts          NWS RSS Feed

​CSWC Useful Links & Information

​NWS Western Region

Keep up with the National Weather Service and what's going on with California's weather by following @nwsWestern on Twitter!


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