INC20000294

What to do

• Check whether you use Snowflake Databases, Tables, and Views, Data Loading and Unloading, Applications. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 8h 52m it lasted.

  Anything that failed between 2026-10-20 06:34 UTC and 2026-10-20 15:26 UTC may need a replay.

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Root cause

Preliminary root cause: A power event at our third-party cloud platform provider made one of the availability zones in the specified region unavailable.

Category: Upstream dependency

Updates from Snowflake 8

1. investigatingOct 20, 2026, 6:34 AM UTC

   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 region may be unable to access or use multiple Snowflake services and features, including Snowflake Postgres. Affected users may experience errors or failures when connecting to Snowflake Postgres instances, managing data, loading data, or using applications. Incident start time: 06:01 UTC October 20, 2026

   provider

2. identifiedOct 20, 2026, 7:22 AM UTC

   Current status: We've identified an issue with a third-party cloud platform that's affecting part of the infrastructure in the specified region, and we're coordinating with the provider to develop and implement a fix to restore service. We have identified an issue with one of the availability zones in the region. Workloads have automatically moved away from the affected infrastructure. We'll provide another update within 30 minutes. Customer experience: We're seeing recovery of the affected services as of 6:40 UTC. Customers hosted in the specified region may have been unable to access or use multiple Snowflake services and features, including Snowflake Postgres. Affected users may experience errors or failures when connecting to Snowflake Postgres instances, managing data, loading data, or using applications. ETA: An ETA isn't available yet. We'll provide one as soon as possible. Workaround: There are currently no available workarounds for this issue. Incident start time: 06:01 UTC October 20, 2026

   provider

3. identifiedOct 20, 2026, 7:49 AM UTC

   Current status: Our monitoring has shown healthy service since 06:40 UTC October 20, 2026, but the affected availability zone remains unavailable at our third-party cloud platform provider. We've stopped new workloads from being placed in that zone and paused routine software updates in the region as a precaution. We're continuing to coordinate with the provider to restore the affected infrastructure and to develop and implement a fix. We'll provide another update within 2 hours. Customer experience: We're seeing recovery of the affected services as of 6:40 UTC. Customers hosted in the specified region may have been unable to access or use multiple Snowflake services and features, including Snowflake Postgres. Affected users may have experienced errors or failures when connecting to Snowflake Postgres instances, managing data, loading data, or using applications. ETA: An ETA isn't available yet. We'll provide one as soon as possible. Workaround: There are currently no available workarounds for this issue. Incident start time: 06:01 UTC October 20, 2026

   provider

4. identifiedOct 20, 2026, 9:39 AM UTC

   Current status: Our monitoring has shown healthy service since 06:40 UTC October 20, 2026, but the affected availability zone remains unavailable at our third-party cloud platform provider. We've stopped new workloads from being placed in that zone and paused routine software updates in the region as a precaution. We're continuing to coordinate with the provider to restore the affected infrastructure and to develop and implement a fix. Additional updates are available on the Cloud Provider's status page https://status.cloud.google.com/. We'll provide another update within 3 hours. Customer experience: We're seeing recovery of the affected services as of 6:40 UTC. Customers hosted in the specified region may have been unable to access or use multiple Snowflake services and features, including Snowflake Postgres. Affected users may have experienced errors or failures when connecting to Snowflake Postgres instances, managing data, loading data, or using applications. ETA: An ETA isn't available yet. We'll provide one as soon as possible. Workaround: There are currently no available workarounds for this issue. Incident start time: 06:01 UTC October 20, 2026

   provider

5. identifiedOct 20, 2026, 12:30 PM UTC

   Our monitoring still shows healthy service since 06:40 UTC October 20, 2026. As per updates on the Cloud Provider's status page https://status.cloud.google.com, some infrastructure in the affected availability zone at our third-party cloud platform provider has begun to come back online, but the zone isn't fully available yet. Our mitigation actions continue to keep new workloads out of the affected zone and these mitigations will remain in place until the availability zone is fully back online. We'll provide another update within 2 hours. Customer experience: We're seeing recovery of the affected services as of 6:40 UTC. Customers hosted in the specified region may have been unable to access or use multiple Snowflake services and features, including Snowflake Postgres. Affected users may have experienced errors or failures when connecting to Snowflake Postgres instances, managing data, loading data, or using applications. ETA: Our current estimate is that the availability zone will be restored within 2 hours. Workaround: There are currently no available workarounds for this issue. Incident start time: 06:01 UTC October 20, 2026

   provider

6. identifiedOct 20, 2026, 2:34 PM UTC

   Current status: Our Cloud Provider has confirmed via their status page https://status.cloud.google.com that the issue has been largely mitigated. We're are closely monitoring service health and are preparing to revert our previously completed precautionary changes; though at this time, customers should no longer be experiencing impact. Customer experience: Customers hosted in the specified region may have been unable to access or use multiple Snowflake services and features, including Snowflake Postgres. Affected users may have experienced errors or failures when connecting to Snowflake Postgres instances, managing data, loading data, or using applications. Incident start time: 06:01 UTC October 20, 2026 Incident end time: 14:03 UTC October 20, 2026

   provider

7. resolvedOct 20, 2026, 3:26 PM UTC

   Current status: We've monitored the environment and confirmed that service has been 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 been unable to access or use multiple Snowflake services and features. Affected users may have experienced errors or failures when connecting to Snowsight, managing data, loading data, or using applications. Incident start time: 06:01 UTC October 20, 2026 Incident end time: 14:00 UTC October 20, 2026 Preliminary root cause: A power event at our third-party cloud platform provider made one of the availability zones in the specified region unavailable. Snowflake infrastructure running in that zone, including components that support Snowsight, became unreachable, and requests that depended on it failed until workloads moved to the remaining availability zones. To limit further impact, we stopped placing new workloads in the affected zone and paused routine software updates in the region until the provider restored the zone. A root cause analysis (RCA) will be conducted and a summary will be made available within 10 business days.

   provider

8. postmortemNov 3, 2026, 4:23 PM 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/INC20000294](https://community.snowflake.com/s/article/INC20000294)

   provider

Corrections

None so far.

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