Mariposa County
El Portal, Midpines, Mariposa, Fish Camp, Buck Meadows, and other areas in Mariposa County
Madera County
Oakhurst and other areas in Madera County
Tuolumne County
Groveland, Mather, and other areas in Tuolumne County
PG&E
Public safety power shutdown alerts by address. PG&E serves most of Yosemite and El Portal. (PG&E doesn't serve individual customers in Yosemite except those on private land, but does provide power to the park.).
Southern California Edison
Public safety power shutdown alerts by address. SCE serves Tuolumne Meadows (95389.)