Snow on El Capitan Mountain
Snow on El Capitan Mountain near Alpine on Thursday. Courtesy OnScene.TV

Interstate 8 and other highways in the San Diego mountains were closed on Thursday due to heavy snowfall from the Pacific storm.

The eastbound interstate was closed at East Willows Road in Alpine, and all lanes were closed in both directions between Route 79 and Imperial Highway near the Imperial County Line, Caltrans reported at 8 a.m.

All eastbound lanes of Route 78 and Route 79 were shut down at the 78/79 junction in Santa Ysabel.

Elsewhere in Southern California, Interstate 15 is closed in the Cajon Pass.

The National Weather Service is forecasting as much as 18 inches of snow in the San Diego County mountains.

Chris Jennewein is Editor & Publisher of Times of San Diego.