# Snowflake: INC20000157

- Impact (vendor’s label): critical
- Status: postmortem
- Started: 2026-08-14 15:19 UTC · Resolved: 2026-08-14 16:28 UTC · Duration: 1.1 h
- Updates: 3 · Affected components: Applications, AWS - US East (Ohio) - Applications
- [Vendor status page: https://stspg.io/3pb443b8r648](https://stspg.io/3pb443b8r648)
- [Company: Snowflake](https://rewindex.com/company/snowflake.md)

## Summary

Snowflake reported a critical Snowsight availability outage affecting Applications in AWS - US East (Ohio), with intermittent authentication failures and "service unavailable" errors. The incident started at 2026-08-14 15:19 UTC and resolved at 2026-08-14 16:28 UTC; recorded duration was 1 h 8 min. Automated recovery restored service; a postmortem links to an RCA on Snowflake Community. _(machine-written, sol)_
## Timeline of updates

- **monitoring** 2026-08-14 15:19 UTC: Current status: We've identified an issue that caused elevated error rates for Snowsight availability, and we've validated that service health has returned to normal following action by automated recovery systems. We'll continue to monitor the environment until we're confident all services are functioning properly. Customer experience: Customers hosted in the specified region may have experienced intermittent authentication failures and "service unavailable" errors between approximately 14:20 and 14:45 UTC. Incident start time: 14:20 UTC August 14, 2026 Incident end time: 14:45 UTC August 14, 2026 Preliminary root cause: A service infrastructure layer supporting authentication and session initiation for Snowsight entered an unhealthy state, causing login failures and service disruptions.
- **resolved** 2026-08-14 16:28 UTC: Current status: We've monitored the environment to confirm that service was restored. If you experience additional issues or have questions, please open a support case via Snowflake Community or the Support page in Snowsight. Customer experience: Customers hosted in the specified region may have experienced intermittent authentication failures and "service unavailable" errors between approximately 14:20 and 14:45 UTC. Incident start time: 14:20 UTC August 14, 2026 Incident end time: 14:45 UTC August 14, 2026 Preliminary root cause: A service infrastructure layer supporting authentication and session initiation for Snowsight entered an unhealthy state, causing login failures and service disruptions. A root cause analysis (RCA) will be conducted and a summary will be shared on the Snowflake status page within 5 business days.
- **postmortem** 2026-08-22 02:37 UTC: Snowflake Engineering has completed the postmortem of this service incident. A detailed Root Cause Analysis \\(RCA\\) is available on the Snowflake Community site: \[https://community.snowflake.com/s/article/INC20000157\](https://community.snowflake.com/s/article/INC20000157)

## Rewindex changes for this incident

- 2026-08-14 15:19 UTC: [Critical incident: INC20000157](https://rewindex.com/change/i168d0cb5b36a74.md)


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Canonical: https://rewindex.com/company/snowflake/incidents/ylfhrtlppdlt · Markdown: https://rewindex.com/company/snowflake/incidents/ylfhrtlppdlt.md · JSON: https://rewindex.com/api/v1/companies/snowflake/incidents/ylfhrtlppdlt · Generated 2026-10-18T10:26:26.172Z