Major interstates reopened in Southern California on Friday after lengthy closures caused by a cold storm that drenched the region and blanketed mountains and desert areas with heavy snow. The notorious Grapevine section of Interstate 5 in towering Tejon Pass north of Los Angeles was finally opened after a 36-hour closure forced by dangerous conditions that set in Christmas night.Major interstates reopened in Southern California on Friday after lengthy closures caused by a cold storm that drenched the region and blanketed mountains and desert areas with heavy snow. The notorious Grapevine section of Interstate 5 in towering Tejon Pass north of Los Angeles was finally opened after a 36-hour closure forced by dangerous conditions that set in Christmas night.