Flood Alert Issued for River Thames from Datchet to Shepperton Green

Alert Details

The Environment Agency has issued a flood alert for the River Thames from Datchet to Shepperton Green. This alert was officially raised on February 16, 2026, in response to high river levels that may lead to flooding in the region.

Affected Areas

The geographic scope of this alert includes the River Thames corridor between Datchet and Shepperton Green. Affected local authorities include Slough, Surrey, and Windsor and Maidenhead. Specific areas identified as being at risk for flooding of low-lying land and roads include:

• Penton Hook
• Old Windsor
• Runnymede
• Chertsey

What You Should Do

Residents and visitors in the warning area are advised to take the following safety measures:

• Avoid walking, cycling, or driving through flood water.
• Avoid using low-lying footpaths near the river.
• Stay away from bridges located near local watercourses.
• Monitor local conditions as river levels remain high.

Expected Conditions

High river levels are expected to cause flooding of roads and low-lying land over the coming days. The Environment Agency reports that further light rainfall is forecast over the next 48 hours. River levels are expected to remain high and will be responsive to any additional precipitation during this period. Agency officials are currently monitoring the situation closely.

Timeline

The flood alert is effective as of February 16, 2026, and conditions are expected to persist into February 17, 2026. The Environment Agency has stated that this message will be updated by 8:00 PM on February 17, 2026, or earlier if the situation changes.