"We have just been informed by one of our upstream providers that they will be performing emergency maintenance early tomorrow morning. The goal of this maintenance will be to add additional levels of redundancy in both network infrastructure and hardware.
This work will be done between the hours of 12 AM EST and 3 AM EST, Wednesday, August 20th. You may experience some degradation of service during a portion of this window, and there may be a period of 5 to 20 minutes of downtime as core routers readjust to the upgrade. We apologize for any inconveniences this may cause."

-hope it's brief, Sean