Office of Emergency Management


Disasters can strike at any time. The Office of Emergency Management (OEM) provides coordination, leadership, planning, education and resources to help protect lives, property, and the environment in Arapahoe County, Centennial, and Englewood.

Using a sophisticated Emergency Operations Center, the OEM works with county departments, local governments, volunteer organizations and the private sector across the Denver Metro Area to develop disaster preparedness plans and provide training and exercise activities.


OEM has authored and maintains numerous plans in preparation for all-hazards events.

The primary plans are the Hazard Mitigation Plan (HMP) and the Emergency Operations Plan (EOP) and Community Wildfire Protection Plan (CWPP).

The HMP is adopted countywide and describes the natural hazard threats in Arapahoe County, along with mitigating strategies.

The EOP is the foundation that many different public and private entities use to work together during disaster response and recovery.

The CWPP describes the wildfire risk in Arapahoe County and steps communities can take to reduce wildfire risk in their communities.

Stay in the Know

Arapahoe County uses Arapalert to notify the public of emergency alerts. This tool requires cell phone users to opt in to receive notifications for things like evacuations and shelter in place.

OEM can also use Wireless Emergency Alerts (WEA) for critical disaster information. This system, developed and maintained by the federal government, is a one-way (like a FM radio broadcast) information push. WEA is limited to 90 characters for most phones. Newer phones can get up to 360 characters. Wireless Emergency Alerts should include the issuing source so you can find more information. For detailed information on WEA see the FCC’s WEA guide

Be sure to follow @ArapahoeSO on Twitter.


Emergency Manager

Sheriff Tyler Brown serves as the county's emergency management director with the day-to-day operations overseen by Emergency Manager Nathan Fogg. Nathan is also in charge of several sheriff's office special operations sections, including the Hazardous Materials Team, Winter Operations Team, and the Wildland Fire Team.