Due to issues with Amazon's EC2, RDS, and Redshift, we experienced 35 minutes of downtime between 4:24 PM and 5:09 PM PDT on August 2, 2017. Amazon resolved their issues at 5:09 PM PDT.
Amazon reported: "Between 4:24 PM and 5:09 PM PDT some instances were unreachable and some EBS volumes experienced degraded performance in a single Availability Zone in the US-EAST-1 Region. The issue has been resolved and the service is operating normally."
Amazon reported: "Between 4:24 PM and 4:58 PM PDT some Redshift clusters were unreachable in a single Availability Zone in the US-EAST-1 Region. The issue has been resolved and the service is operating normally."