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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 25th and 31st October 2026. Affected watercourses included the Derwent, Stonethwaite Beck.

During this event, FloodRadar monitoring gauges recorded notable rises. The River Greta at Greta Bridge rose 1.86m, peaking at 3.02m, while the River Greta at Keswick Campsite climbed 1.69m.

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
Greta Bridge River Greta +1.86m 3.02m
Keswick Campsite River Greta +1.69m 2.49m
Riddings Wood River Greta +1.67m 2.95m
Threlkeld River Glenderamackin +1.64m 2.23m
Thirlmere Reservoir (Spillway level = 16.55m) Thirlmere Reservoir +1.58m 12.53m
Portinscale River Derwent +1.14m 1.91m
Lodore Derwentwater +0.81m 2.00m
Scalehill Upper Lorton Valley River Cocker +0.74m 1.39m
Glenridding Village Glenridding Beck +0.73m 0.92m
Thirlmere St Johns Beck +0.20m 0.36m

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.