We have concluded that this morning's brief outage was caused by degraded performance of Amazon's Elastic Block Storage service. Amazon did not update their status page (http://status.aws.amazon.com/) to indicate that degraded performance occurred, but our logs indicate it was caused by Elastic Block Storage. We'll continue to monitor the situation.
Posted Jul 19, 2016 - 16:37 UTC
At 5:36AM Eastern our primary load balancer failed to respond to network input/output. This prevented any traffic coming into ProcedureFlow. The problem automatically corrected itself within 2 minutes and ProcedureFlow was available again. We're investigating the root cause.