Overview

• The alert runs from 8pm Sunday, 14 September, to 6pm Monday, 15 September, with widespread gusts of 50–60 mph and 70–80 mph in the most exposed locations.
• Coverage spans most of Wales, the South West and entire south coast of England, and parts of the North West including Merseyside and western Lancashire.
• A broad band of heavy rain is expected alongside showers, hail and thunderstorms, with the strongest winds likely on Monday morning moving eastward.
• Possible impacts include large coastal waves, transport delays or closures, localized building damage and power cuts, with a small risk of injuries from flying debris.
• Authorities urge people to secure loose items, plan for travel disruption and monitor updates as forecasters continue to track the low-pressure system.