A Flood Alert was issued for Rivers Greta, St Johns Beck and Bassenthwaite Lake in Cumberland, Westmorland and Furness on 24th October 2026. Affected watercourses included the River Greta, St Johns Beck, Glendermackin.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Greta at Greta Bridge rose 1.83m, peaking at 3.02m, while the River Greta at Keswick Campsite climbed 1.72m.
Environment Agency advice issued
Rising river levels this evening may lead to flooding. Flooding is possible from the evening of Saturday 24 October Storm Boelo is forecast to bring heavy rain and strong winds across Cumbria today, Saturday 24th October and overnight into tomorrow. Locations most affected will be low lying land and roads near rivers. We are monitoring rainfall and river levels Do not drive through floodwater. Even shallow water can move or damage a car. Avoid using low lying footpaths and any bridges near local watercourses. This message will be updated by 9:00AM on Sunday 25 October or as the situation chang
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Greta Bridge | River Greta | +1.83m | 3.02m |
| Keswick Campsite | River Greta | +1.72m | 2.49m |
| Riddings Wood | River Greta | +1.63m | 2.95m |
| Threlkeld | River Glenderamackin | +1.59m | 2.23m |
| Portinscale | River Derwent | +1.19m | 1.91m |
| Thirlmere Reservoir (Spillway level = 16.55m) | Thirlmere Reservoir | +0.90m | 11.62m |
| Lodore | Derwentwater | +0.80m | 1.85m |
| Castle Howe | Bassenthwaite Lake | +0.70m | 1.95m |
| Ouse Bridge | River Derwent | +0.63m | 1.68m |
| Thirlmere | St Johns Beck | +0.21m | 0.36m |