The Coastal Emergency Risks Assessment (CERA) group is a coastal modeling research & development effort providing operational advisory services related to impending hurricanes in the United States. CERA is a component of the Advanced Surge Guidance System (ASGS). Based on the Advanced Circulation and Storm Surge model (ADCIRC), coupled with the SWAN Wave model, the ASGS generates real-time storm surge guidance for updating emergency response groups during a tropical or hurricane event. The CERA web application provides an easy-to-use interactive web interface which allows emergency managers to quickly evaluate critical situations. Information and maps related to the official hurricane advisories as issued by the National Hurricane Center are available every six hours during a storm.