# Segment: Major incident: Snowflake RETL sources and Warehouse Destinations are failing due to Snowflake Outage

**Summary:** Segment reported a major outage affecting Snowflake RETL sources and Warehouse Destinations, with Linked Audiences, Linked Events, Reverse ETL and Warehouse Destinations affected in EU and US. Attributed to a Snowflake outage, it ran from 2025-12-16 06:37 UTC to 2025-12-16 16:55 UTC, lasting 10 h 17 min; Segment marked it resolved without specifying a fix. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-12-16 06:37 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/3zjmycy23xm2](https://stspg.io/3zjmycy23xm2)
- [Company: Segment](https://rewindex.com/company/segment.md)
- Versions: before (none: first archived) → after incident\_version:162/q5ggjl390b33@aebc2bba9a36
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Snowflake RETL sources and Warehouse Destinations are failing due to Snowflake Outage
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-12-16 06:37 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-12-16 16:55 UTC
```

**6. Added: Affected components**

```diff
+ Linked Audiences (EU), Linked Audiences - Linked Audiences (EU), Linked Audiences - Linked Audiences (US), Linked Audiences (US), Linked Events (EU), Linked Events - Linked Events (EU), Linked Events - Linked Events (US), Linked Events (US), Reverse ETL (EU), Reverse ETL - Reverse ETL (EU), Reverse ETL - Reverse ETL (US), Reverse ETL (US), Warehouse Destinations (EU), Warehouse Destinations (US), Warehouses - Warehouse Destinations (EU), Warehouses - Warehouse Destinations (US)
```

**7. Added: Update** (investigating) · 2025-12-16 06:37 UTC

```diff
+ We are currently monitoring the issue . Outage is declared here : https://status.snowflake.com/incidents/xdxj4klf7sc5
```

**8. Added: Update** (investigating) · 2025-12-16 08:24 UTC

```diff
+ We are continuing to investigate this issue.
```

**9. Added: Update** (resolved) · 2025-12-16 16:55 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-12-16 06:37 UTC | Major incident: Snowflake RETL sources and Warehouse Destinations are failing due to Snowflake Outage (this change) | outage |

All Segment changes: [timeline](https://rewindex.com/company/segment/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/ied49e2cf913ffb · Markdown: https://rewindex.com/change/ied49e2cf913ffb.md · JSON: https://rewindex.com/api/v1/changes/ied49e2cf913ffb · Generated 2026-10-18T02:25:48.580Z