Our NOC server in Dallas is currently having some problems and this may cause some spurious alerts to go out. Softlayer is attempting a chassis swap to resolve the hardware issue. In the meantime, nagios and munin graphs are offline in Dallas, affecting any customers whose systems are monitored from there.
Update: The server is back online now and service alerts are recovering.
Update2: Several queued alerts went out about 1:30am Pacific, they were false-positives. The situation is now stable.