Flood Alert Issued for Tidal River Avon Affecting Bristol, Pill, and Shirehampton

Alert Details

The Environment Agency has issued a flood alert for the Tidal River Avon at Bristol, Pill, and Shirehampton. This alert (ID: 112WATAVN1) indicates that flooding is possible due to high tides expected on the morning of March 21, 2026.

Affected Areas

The alert covers geographic regions within the City of Bristol, North Somerset, and South Gloucestershire. Specific areas most at risk include:

• The tidal River Avon from Sea Mills to Conham in Bristol.
• The area between the Avonmouth Bridge and Shirehampton Park.
• The communities of Pill and Shirehampton.

What You Should Do

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

• Avoid coastal footpaths, which may be flooded and hazardous.
• Monitor local conditions as the situation develops.
• Follow any further guidance from the Environment Agency, which is closely monitoring the river levels.

Expected Conditions

A peak tidal level is forecast at Avonmouth at 08:45 AM on March 21, 2026. The forecast high water level is 7.40 mAODN (height above average sea level). Weather conditions at the time of the peak are expected to include North East force 2 winds.

Timeline

Flooding is considered possible between 08:30 and 09:30 on March 21, 2026. The Environment Agency expects to update this message by 1:00 PM on March 21, 2026, or as the situation changes.