Hey Bill,
If the CMS restarted then it would trigger this alert since BOProdCluster.CentralManagementServer$'Health State' watch would be triggered if the server is stopped.
One thing you can do is edit the watch and change the threshold to only trigger the watch if it has been in danger state for > 10 minutes for example. This way, if the server is simply restarted the watch won't give an alert.
Cheers
Toby