Azure - Switzerland North (Zürich): INC0143996
Incident
Report for Snowflake
Resolved
Current status: We've coordinated with our third-party cloud platform to implement the fix for this issue, and 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.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 00:03 UTC September 27, 2025
Incident end time: 03:33 UTC September 27, 2025
Preliminary root cause: A network event at our third-party cloud provider has caused a disruption to Snowflake services.
A root cause analysis (RCA) document will be published within ten business days.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 00:03 UTC September 27, 2025
Incident end time: 03:33 UTC September 27, 2025
Preliminary root cause: A network event at our third-party cloud provider has caused a disruption to Snowflake services.
A root cause analysis (RCA) document will be published within ten business days.
Monitoring
Current status: We've coordinated with our third-party cloud platform to implement 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 regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 00:03 UTC September 27, 2025
Incident end time: 03:33 UTC September 27, 2025
Preliminary root cause: A network event at our third-party cloud provider has caused a disruption to Snowflake services.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 00:03 UTC September 27, 2025
Incident end time: 03:33 UTC September 27, 2025
Preliminary root cause: A network event at our third-party cloud provider has caused a disruption to Snowflake services.
Update
Current status: We're continuing to coordinate with our third-party cloud platform to develop and implement a fix to restore service. Azure is actively investigating a recent networking change and is preparing a hotfix to address the issue.
We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: An ETA is not yet available. We'll provide one as soon as possible. We are actively collaborating with Microsoft Azure to address the incident with the highest urgency. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 00:03 UTC September 27, 2025
We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: An ETA is not yet available. We'll provide one as soon as possible. We are actively collaborating with Microsoft Azure to address the incident with the highest urgency. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 00:03 UTC September 27, 2025
Update
Current status: We're continuing to coordinate with our third-party cloud platform to develop and implement a fix to restore service. We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: An ETA is not yet available. We'll provide one as soon as possible. Snowflake is working in close partnership with Microsoft Azure to address the incident, and can confirm that mitigation efforts are underway with the highest priority. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 00:03 UTC September 27, 2025
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: An ETA is not yet available. We'll provide one as soon as possible. Snowflake is working in close partnership with Microsoft Azure to address the incident, and can confirm that mitigation efforts are underway with the highest priority. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 00:03 UTC September 27, 2025
Identified
Current status: We've identified an issue with a third-party cloud platform, and we're coordinating with the provider to develop and implement a fix to restore service. We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: An ETA is not yet available. We'll provide one as soon as possible. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 00:03 UTC September 27, 2025
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
ETA: An ETA is not yet available. We'll provide one as soon as possible. In the meantime, we recommend that affected customers using replication initiate their failover procedures.
Incident start time: 00:03 UTC September 27, 2025
Investigating
Current status: We've confirmed that this issue impacts service, and we're continuing to investigate to determine the source of the issue. We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 00:03 UTC September 27, 2025
Customer experience: Customers hosted in the specified regions may be unable to access or use multiple core Snowflake services and features. Affected users may be unable to sign in, execute queries, or manage data.
Incident start time: 00:03 UTC September 27, 2025
This incident affected: Azure - Switzerland North (Zürich) (Databases, Tables, and Views, Virtual Warehouses, Data Loading and Unloading, Applications, Snowpark Container Services, Security and Privacy Features, AI and ML, Organization and Account Management, Listings and Collaboration, Alerts and Notifications, Developer Tools, Business Continuity).