We find the best place to get up-to-date ski conditions and weather forecasts is from the good people at Snow Summit/Bear Mountain.  Click on this link to be redirected to their website:

http://www.snowsummit.com/snow-summit-snow-report.php#weather

And here's a link to the CalTrans road conditions:

http://www.dot.ca.gov/hq/roadinfo/do8map.htm