So I went and looked. I have 2 warnings and the individual descriptions show 1 warning for 1 point, and the second warning for 2 points(expired). The subtotal at the very bottom shows 4 points and 2 warnings. The math is off and I don't know which is correct.
When we ported over the boards to Xenforo, the system seems to have carried over infraction points from the old boards to warning points, but did not necessarily carry over the body of those infractions as warnings. So, you may have had an infraction in the past whose point remains, unattached to any warnings.
At the moment, due to past testing and experimentation with vbulletin, I have four warning points, and no warnings.