This website is updated by CHP officers out in the field. Not only are current traffic accidents listed but weather and media information as well
The site has a drop down menu for almost all counties in California. Look on the Los Angeles site and not only are accidents listed but a media & often a weather link as well. Want to know if it is snowing on the Grapevine?. You will find it here. Want to know if the 101 is flooding heading north out of L.A. You will find it here. For me this site helps confirm things we see on Radar without being there. I think you will find it a useful tool as well.