A fast-moving wildfire exploded to roughly 10,200 acres near the Los Angeles County community of Castaic Wednesday morning, prompting mandatory evacuation orders and road closures, authorities said.

As the sun began to set over Castaic Lake on Wednesday, the hills to the north and east were engulfed in flames, casting an eerie orange glow across the valley below.

VIIRS/MODIS satellite hotspot data is updated daily in the morning with the red dots indicating which direction the fire is moving. The color of the dots shows how recent the data is (red is today, orange yesterday, yellow two days old). Perimeter data is updated by Cal Fire twice daily.