Mariposa County declares state of emergency following Mono wind event KFSN Share: FRESNO, Calif. (KFSN) -- Mariposa County is taking the steps toward recovery after Tuesday's Mono wind event. Mariposa County Sheriff Jeremy Briese, who is also the county's director of emergency services, issued a local emergency proclamation in the county. That proclamation was unanimously confirmed Friday by the County Board of Supervisors, requesting state and-or-federal funding to assist with recovery efforts under the California Disaster Assistance Act.