We are migrating some hardware to a new datacenter tonight (12/19). The homepage, as well as, a few other services will likely be off-line for up to 6 hours.
The following web pages will not be affected by the transition as they are running at the new datacenter.
GFS – Hires
HRRR (Hourly Rapid Refresh)
We will post an updated when all of the migration activities are complete.