Andrew Taylor wrote:
Is there a web site for California that enables one to with a glance
which rivers accross the state are running at levels suitable for
kayaks? Thanks

These are probably what you want:

http://www.dreamflows.com/flows-canv.html
http://kayak.als.orst.edu/display.cgi/California.html
http://cdec.water.ca.gov/misc/stages.html
http://waterdata.usgs.gov/ca/nwis/current?type=flow

For access to graphs, here are mo

http://www.acme.com/jef/flow/cdec.html
http://rivervilla.com/flows/index.html
http://www.sonic.net/mdooley/flows.html