Companies / Snowflake / incidents
Snowflake: INC20000158
Snowflake reported a critical Snowsight outage in Azure - East US 2 (Virginia), blocking access/sign-in with “503 Service Unavailable” errors. Recorded from 2026-08-14 17:29 UTC to 2026-08-14 19:35 UTC (2 h 5 min), customer impact reportedly began at 17:05 UTC August 14, 2026. Snowflake implemented a fix for a system configuration issue and confirmed service restoration.
Machine-written from the archived incident (Sol). Check the timeline before relying on it.
Affected components: ApplicationsAzure - East US 2 (Virginia) - Applications
Timeline of updates
- investigating
Current status: We're investigating an issue with Snowflake Data Cloud. We'll provide an update within 30 minutes. Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features using Snowsight. Affected users may be unable to sign in and may observe "503 Service Unavailable" errors. Incident start time: 17:05 UTC August 14, 2026
- identified
Current status: We've identified a system configuration issue affecting Snowsight, and we're implementing a fix to restore service. We'll provide another update within 30 minutes. Customer experience: Customers hosted in the specified region may be unable to access or use Snowsight and may observe "503 Service Unavailable" errors. ETA: Our current estimate is that service will be restored within 30 minutes. Workaround: There are currently no available workarounds for this issue. Incident start time: 17:05 UTC August 14, 2026
- monitoring
Current status: We've implemented the fix for this issue, and 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 been unable to access or use Snowsight and may have seen "503 Service Unavailable" errors. Incident start time: 17:05 UTC August 14, 2026 Incident end time: 18:12 UTC August 14, 2026 Preliminary root cause: A routine system configuration change intended to optimize performance caused elevated latency in the metadata layer, resulting in service disruptions. Once identified, the configuration was reverted and affected service infrastructure was restarted to restore service.
- resolved
Current status: We've implemented the fix for this issue and 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 be unable to access or use Snowsight and may observe "503 Service Unavailable" errors. Incident start time: 17:05 UTC August 14, 2026 Incident end time: 18:12 UTC August 14, 2026 Preliminary root cause: A routine system configuration change intended to optimize performance caused elevated latency in the metadata layer, resulting in service disruptions. Once identified, the configuration was reverted and affected service infrastructure was restarted to restore service. A root cause analysis (RCA) will be conducted and a summary will be shared on the Snowflake status page within 5 business days.
- postmortem
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/INC20000158](https://community.snowflake.com/s/article/INC20000158)
Rewindex changes for this incident
- Critical incident: INC20000158 2026-08-14 17:29 UTC
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Snowflake profile · Recent Snowflake incidents · Markdown · JSON