A powerful storm that swept through Southern California during the Thanksgiving holiday turning Big Bear Mountain Resort into a winter wonderland with 4 feet of snow by its opening day Friday, Nov. 29.

This is the biggest November storm to hit the region in the last 50 years, those at the resort said, Fox 11 Los Angeles reported.

Within two days the resort saw 42 to 48 inches of snow.

Those looking to partake in the opening day encountered a major snag as several roads leading into the resort were closed.

Caltrans announced that SR 18 was closed to all traffic from Green Valley Lake to Big Bear Dam. Motorists were advised to use SR 18 from Lucerne.

Residents living near Big Bear will not be let through closed roads, even with a valid ID.

Highway 18 through Lucerne Valley is open. Travel in local mountains is suggested on an emergency basis only until roads can be cleared. Highway 38, 330, and 18 up the front grade are closed. Residents with ID will not be let through road closures. Check http://quickmap.dot.ca.gov for updates.

Anyone heading to the mountains by car must have chains, even those in vehicles with four-wheel drive, according to Caltrans.

To find the latest road condition, go here.