I put my Mom & her friend on the CS to Portland, and they arrived over 6 hours late. They weren't to happy with me for making that a part of their trip to the West
I noticed that the service bulletins in the Emeryville station mention delays in So Cal, but nothing about delays Emeryville and North.
Edited to add that a quick check of arrival stats for the past few days show that EVERY train to Portland was at least 6 hours late.