The issue is fully resolved.

The issue is contained is impacting < 5% of our customers. The next update will be posted at 4:30 PM Eastern or sooner.

Amazon S3 appears to have stabilized. We will continue to monitor and provide updates here every 30 minutes until the issue is resolved.
You can also visit http://status.aws.amazon.com/ for a real time status.

Portions of OpenWater that rely on Amazon S3 for storage are facing an outage. This outage began approximately at 2:55 PM Eastern Time.

We will post an update once more information is available.