Changes / Snowflake / INC20000157
Snowflake: Critical incident: INC20000157
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 from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: INC20000157
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After: critical
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After: postmortem
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After: 2026-08-14 15:19 UTC
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After: 2026-08-14 16:28 UTC
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After: Applications, AWS - US East (Ohio) - Applications
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After: 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.
Before: not present
After: 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.
Before: not present
After: 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)
First version of this incident archived by Rewindex. View the live incident (opens in new tab).
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Critical incident: INC20000157 (this change) 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. | Major incident |
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