A powerful storm system sweeping across parts of the UK and Europe has been identified as the cause of a significant outage affecting Amazon Web Services (AWS) CloudFront, a widely used content delivery network. The disruption, which began during the morning of 16 July 2026, rendered numerous websites inaccessible, displaying error messages to users attempting to connect.
Among the high-profile services impacted was the UK's National Lottery, leaving players unable to check results or purchase tickets online. The popular artificial intelligence platform Hugging Face also reported service interruptions, highlighting the broad reach of the CloudFront outage across various sectors. Users attempting to access these and other affected sites were met with technical errors, indicating a failure to retrieve content from the cloud servers.
The Met Office had issued several weather warnings across the UK for 16 July 2026, forecasting strong winds and heavy rainfall. Gusts of up to 70 mph were recorded in coastal areas of the South West of England, with inland regions experiencing winds between 50-60 mph. Northern England, Scotland, and parts of Wales also faced challenging conditions, including torrential downpours and localised flooding. Northern Ireland saw strong winds, though rainfall was less intense than in other regions.
CloudFront is a critical component of the internet's infrastructure, designed to speed up the delivery of web content to users globally by caching data at 'edge locations' closer to them. When these edge locations are affected, as appears to have been the case due to the storm, it can lead to widespread service interruptions for any website or application that relies on the network.
While AWS engineers are understood to be working to restore full service, the incident underscores the vulnerability of digital infrastructure to extreme weather events. The reliance of essential services, such as the National Lottery, on cloud providers means that such outages can have immediate and tangible effects on the public.