Southern California ski resorts are planning to open as a huge winter storm heads this way. As much as 30 inches are expected over the next four days.

Parts of Mountain High Resort in the Angelus National Forest near Wrightwood opened to skiers and snowboarders on Saturday. The West Resort and Yeti Snow Park East opened on Saturday.

The East Resort and Yeti Snow Park North are expected to open on Dec. 21, according to mtnhigh.com.

The Snow Summit and Bear Valley resorts above Big Bear Lake were expected to open this week.

Snow Valley, the closest resort to Redlands, expected to open Wednesday, said spokesman John Brice. However, the magnitude of the storm caused a delay.

"We had every intention of opening, but mother nature decided otherwise. We’re currently experiencing whiteout type conditions plus gusty winds over the entire mountain. As such, we will not open today," said Snow Valley Vice President and General Manager Kevin Somes.

The California Highway Patrol advises motorists to carry chains during winter conditions and make sure car is good condition before heading up the mountain.