A Flood Alert was issued for Tidal River Avon at Bristol, Pill and Shirehampton in City of Bristol, North Somerset, South Gloucestershire on 15th August 2026. Affected watercourses included the River Avon.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Avon at Netham Weir rose 1.36m, peaking at 1.60m, while the River Avon at Bristol Netham Lock climbed 0.15m.
Environment Agency advice issued
High tides this evening may lead to flooding. Flooding is possible around 8:30PM to 11:30PM on Saturday 15th of August 2026. Areas most at risk include the tidal River Avon from Sea Mills to Conham in Bristol and between the Avonmouth Bridge and Shirehampton Park including Pill and Shirehampton. The detailed tidal forecast for those who use it is for a peak level at Avonmouth Portbury of 7.37 mAODN at 10:15PM on 15/08/26, which is 0.15 m above tide tables, with North-Easterly force 4 winds. (mAODN is height above average sea level.) We are closely monitoring the situation . Take care and avoid
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Netham Weir | River Avon | +1.36m | 1.60m |
| Bristol Netham Lock | River Avon | +0.15m | 6.23m |
| Ashton Vale | River Avon | +0.09m | 1.06m |
| Bradford on Avon | River Avon | +0.06m | 0.84m |
| Saltford | River Avon | +0.06m | 0.45m |