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Temporal Cloud: Elevated Errors in us-west-2 Region

Affected components: Amazon Web Services (AWS) - us-west-2us-west-2

Timeline of updates

1. investigating2026-09-03 21:12 UTC

   We are investigating connectivity errors affecting some customers with namespaces in the us-west-2 region relating to an AWS outage in this region. Our team is actively assessing impact and working on mitigation. Affected MRN namespaces have been failed over. We will provide updates as more information becomes available. https://health.aws.amazon.com/health/status

2. monitoring2026-09-03 23:25 UTC

   We are starting to see recovery as of 23:01 UTC.

3. monitoring2026-09-04 02:13 UTC

   As of 9/4 00:07 UTC, AWS has confirmed the incident impacting us-west-2 is resolved. After a further period of monitoring, we have confirmed service is stable and have begun failing back the affected MRN namespaces.

4. resolved2026-09-04 05:28 UTC

   As of 9/4 05:03 UTC, all affected MRN namespaces have been failed back to us-west-2. No further issues have been observed and this incident is resolved.

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Temporal Cloud profile · Recent Temporal Cloud incidents · Markdown · JSON