Active – Multi Service degradation in West US 2 region.

Impact Statement: Starting at 04:27 UTC on 29 May 2026, we are investigating an incident which is impacting multiple services in West US 2, due to a power event. This impacts service accessibility region-wide, with customers potentially experiencing increased latency and intermittent connectivity, including timeouts when connecting to resources. Affected Azure services include, but are not limited to: Azure Functions, Azure Database for MySQL flexible servers, Azure Database PostgreSQL Flexible Server, Azure Databricks and, Redis, Azure SQL, Azure Managed Grafana, Virtual Machine, Virtual Machine Scale Set Current Status: We are actively mitigating service impact in the West US 2 region following severe thunderstorms that caused widespread power outages. Backup generators were unable to fully stabilize power, leading to temperature spikes and instability across datacenter hardware and network devices. Recovery efforts are well underway, including power cycling and targeted reboots of network and storage devices, physical inspections, node remediation, and traffic redirection to healthy infrastructure. Our telemetry indicates significant improvements. Customers might start noticing improvements as these measures advance, though full mitigation is delayed by persistent hardware and network instability, storage dependencies, and cooling normalization. Recovered Azure services: Service Bus, Storage, App Service (Web Apps), Azure Site Recovery, Backup (MAB), Azure Cosmos DB, Azure Log Analytics, Application Insights, Azure Monitor, Azure Resource Manager, Data Explorer, Azure IoT Hub, Microsoft Defender for Cloud Apps, Azure Container Registry, Azure Kubernetes Service, Azure Policy, Azure NetApp Files, Azure Resource Graph, Azure Synapse, Azure Database for MySQL - Flexible Server Our teams actively working to address the issue, with manual intervention and inspections ongoing to stabilize remaining scale units and restore full service which is expected to be completed within the next hour.