UPDATE 6:26 P.M. Traffic has cleared in the area, according to reports.
ORIGINAL STORY
LAS VEGAS (KTNV) -- Travelers heading to California from Las Vegas should plan on long delays.
The Regional Transportation Commission says there is a 10-mile backup on Interstate 15 southbound towards California.
The backup begins shortly after Jean, before Primm.
Watch traffic camera footage (no sound) of the area below.