Flood Alert Issued for Upper River Derwent and Derwent Water in Cumberland

Flood Warnings medium Environment Agency · · Cumberland, Cumbria and Lancashire

The Environment Agency has issued a flood alert for the Upper River Derwent, Stonethwaite Beck, and Derwent Water following recent heavy rainfall.

Alert Details

The Environment Agency has issued a Flood Alert (Severity Level 3) for the Upper River Derwent catchment area. The alert was officially raised at 7:11 AM on February 26, 2026, following a period of recent rainfall that has impacted local water levels.

Affected Areas

The geographic scope of this alert includes the Upper River Derwent, Stonethwaite Beck, and Derwent Water. These areas are located within the county of Cumberland, part of the Cumbria and Lancashire region. Specific concern is noted for low-lying land and roads, particularly those situated around Derwent Water Lake.

What You Should Do

Residents and travelers in the affected regions are urged to take care. The Environment Agency advises against walking, cycling, or driving through flood water. Local conditions are being closely monitored by agency officials.

Expected Conditions

Due to recent precipitation, both lake and river levels are expected to remain high throughout the day. This sustained high water level increases the risk of flooding for roads and low-lying areas adjacent to the Derwent and Stonethwaite Beck.

Timeline

This alert is effective immediately as of February 26, 2026. The Environment Agency expects to provide an update on the situation by 7:00 AM on February 27, 2026, or earlier if conditions change significantly.

Source: Environment Agency Official Notice