A fast-moving vegetation fire in Phelan is now half contained after scorching roughly 19 acres, but it’s the unusual sight captured on video that’s turning heads.

The Trinity Fire, which ignited in San Bernardino County , drew a coordinated response from Cal Fire , the San Bernardino County Fire Protection District, Victorville Fire Department and Apple Valley Fire.

Their joint effort kept the blaze to 18.6 acres with no reported damage to structures.

A rare phenomena: an ash devil. San Bernardino County Fire

It erupted near Phelan just before noon Friday.…