LOS ANGELES (KTLA) — Southern California woke up to wet weather on Thursday morning, which made roads slick for the morning commute.
A Sig Alert was in effect for several hours on the eastbound 60 Freeway heading out of Pomona after two related accidents.
There was also a secondary crash involving a Kia sedan and an SUV that were trying to avoid the initial wreck.
Only the far right lane was open to traffic while crews worked to clear the scene.
A crane had to be brought in to remove the trailer portion of the tractor-trailer, which had separated from the rig.
All eastbound lanes were finally reopened shortly before 8 a.m., but traffic remained slow.
Elsewhere, traffic was snarled in Downey after a big rig spun out and jackknifed on the transition from the southbound 605 Freeway to the westbound 105 Freeway.
The Sig Alert was expected to last until at least 9 a.m., putting a pinch on the 5 and 605 freeways.
The forecast for Thursday calls for mostly cloudy conditions with a chance of light showers, mostly in the foothills, according to the National Weather Service.
More substantial rain is expected overnight Thursday and into Friday.
Coastal areas will see about .25″ to .33″ of rain, while the mountains could get up to an inch. Isolated thunderstorms could bring locally higher amounts.
A winter storm watch will be in effect from late Thursday through Friday evening for the Los Angeles and Ventura County mountains.
At the same time, a winter storm warning will be in effect for the Riverside and San Bernardino County mountains above 4,000 feet.
Snow levels are expected to drop to around 3,500 feet for early Friday through early Saturday.
About 4 to 8 inches of snow could fall above 4,000 feet, according to the NWS, with local amounts to 12 inches above the 6,000-foot level.