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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 29th and 31st October 2026. Affected watercourses included the Derwent, Stonethwaite Beck.

During this event, FloodRadar monitoring gauges recorded notable rises. The River Greta at Keswick Campsite rose 0.80m, peaking at 1.61m, while the Derwentwater at Lodore climbed 0.77m.

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
Keswick Campsite River Greta +0.80m 1.61m
Lodore Derwentwater +0.77m 1.95m
Portinscale River Derwent +0.71m 1.48m
Scalehill Upper Lorton Valley River Cocker +0.58m 1.22m
Greta Bridge River Greta +0.51m 1.67m
Riddings Wood River Greta +0.50m 1.79m
Threlkeld River Glenderamackin +0.48m 1.08m
Glenridding Village Glenridding Beck +0.28m 0.47m
Thirlmere Reservoir (Spillway level = 16.55m) Thirlmere Reservoir +0.27m 12.53m
Thirlmere St Johns Beck +0.08m 0.24m

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.