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Flood Alert

Flood Alert: Upper River Derwent, Stonethwaite Beck and Derwent Water - October 2026

📍 Cumberland 🌊 Derwent, Stonethwaite Beck 📅 31 October 2026

A Flood Alert was issued for Upper River Derwent, Stonethwaite Beck and Derwent Water in Cumberland between 30th and 31st October 2026. Affected watercourses included the Derwent, Stonethwaite Beck.

During this event, FloodRadar monitoring gauges recorded notable rises. The Derwentwater at Lodore rose 0.72m, peaking at 1.90m, while the River Derwent at Portinscale climbed 0.56m.

Environment Agency advice issued

There is no longer a threat of flooding. Weather conditions are expected to improve. We will continue to monitor the situation and will issue further alerts or warnings if necessary. Continue to take care on waterside roads and footpaths and don't put yourself in unnecessary danger.

Monitoring gauges during this event

StationRiverRisePeak
Lodore Derwentwater +0.72m 1.90m
Portinscale River Derwent +0.56m 1.33m
Scalehill Upper Lorton Valley River Cocker +0.56m 1.21m
Keswick Campsite River Greta +0.56m 1.36m
Greta Bridge River Greta +0.26m 1.42m
Threlkeld River Glenderamackin +0.25m 0.84m
Riddings Wood River Greta +0.24m 1.53m
Glenridding Village Glenridding Beck +0.21m 0.40m
Thirlmere Reservoir (Spillway level = 16.55m) Thirlmere Reservoir +0.12m 12.53m

This report is automatically compiled from Environment Agency flood warning records and FloodRadar river-level monitoring data. Figures are observed gauge readings during the event period. This is a historical record, not a live warning — always check current flood warnings and gov.uk.