Ohhh okay I see what you're doing. On your member badge on a post you make if you click your "Warning Level (#)" link you see the warning log then. Just figured that out also.
Only problem is if your warn level is reset back down to 0, that disappears, so you can no longer click it to see what a new warning was for, as is the exact scenario in this thread. As I kind of said earlier, in order for us to lower a warning level we actually have to issue an additional warning, but with a negative value instead. This then cancels it out.