I had to come into work early today because of an unannounced change that might affect my site. On the drive in I encountered some of the heaviest sustained rain I have experienced while being in California. Wipers were on high and I could barely see the road and I was only doing 35. This lasted for about 15 minutes. Not sure if it was isolated to 84 east of Skyline and I drove out of it or that is when the cloud burst stopped.