AWS has identified the ELB issues as being linked to Cloudfront DNS errors reported here: http://status.aws.amazon.com/. We are marking this as Resolved as alerts have ceased environments are stable. Please open a support ticket if you are seeing further issues or if you have additional questions.
Nov 27, 02:54 UTC
All affected sites are up and we are working with AWS to identify the root cause of the intermittent downtime alerts.
Nov 27, 02:44 UTC
We are seeing intermittent downtime for sites using Amazon Elastic Load Balancers to distribute traffic amongst instances in an environment. We are escalating this with AWS to further investigate. We will post updates here as we have more information.
Nov 27, 01:50 UTC