Caltrans shut down the lanes near Oak Hill Road shortly before 8:30 p.m. Thursday. Lanes were later opened at approximately 11:45 p.m.
Traffic slowed to a crawl on the Cajon Pass due to the second round of rain and snow pummeling Southern California.
The Thanksgiving storm caused a traffic nightmare for drivers in the area. Earlier in the day, the 15 through the Cajon Pass was backed up for miles in both directions, with even side streets jammed.
At one point during a backup, tempers seemed to flare as people were trying to get to their Thanksgiving Day destination.
"Everyone was beeping, none of the cars were moving," said one person stuck in the congestion. "It was frustrating. People were getting out of their cars and yelling. It was crazy."
A quick look at the top of the Cajon Pass. pic.twitter.com/32A4XQDe5G— Rob McMillan (@abc7robmcmillan) November 29, 2019
Just before noon, the 15 Freeway on the Cajon Summit seemed deserted as an armada of Caltrans plows were working on the freeway, trying to keep snow off the road.
Traffic was snarled elsewhere, with snow complicating driving conditions. The San Bernardino Mountains also caused frustrations for drivers.
Traffic slowed to a crawl on the 15 Freeway Wednesday morning as rain, wind, fog and even hail moved into the area.