Dramatic images show the River Kennet swollen with rainwater and flooding at The Oracle in Reading this morning.
The paving to shacks at the pop-up Après bar at The Oracle Riverside was submerged as a result of storms bringing rain that led to the river bursting its banks.
The flooding occurred shortly after the pop-up area closed for the final time this season.
The Après bar is made up of a main bar shack, open-air huts, a ski gondola and private huts for gatherings and karaoke. It is understood that packing down of the pop-up area will now be undertaken in dryer conditions.
Opposite, a riverside section near Comptoir Libanais was also submerged.
The flooding comes as Britain has been hit by Storm Gerrit and Storm Henk. Storm Gerrit brought heavy rainfall to areas throughout the UK since last Wednesday.
The Met Office named Storm Henk today, which will bring yet more rain and strong winds.
Paul Gundersen, the Met Office chief meteorologist, said: “Further wet and windy weather is forecast for the UK this week.
“Our latest analysis of the forecast shows an increase in the likelihood of very strong winds across parts of southern Wales and England, which is why we have issued this Amber warning this morning and named Storm Henk.
“Storm Henk will initially bring very strong winds to the southwest of England and Southern Wales, with gusts of up to 80mph possible.
“As Storm Henk moves north-eastwards across the south of the UK through Tuesday, the strongest winds will also move eastwards, across the south Midlands, Home Counties and East Anglia through the afternoon and evening.”
The amber weather warning covers a band of England stretching from Penzance to Norwich, and includes Reading and the wider Berkshire area.
Residents have been told to be aware of damage to buildings, flying debris, power cuts, road closures and public transport cancellations.
The warning will last until 8pm.
A yellow weather warning for rain was also issued covering England and Wales south of Nottingham.
Members of the public have been told to expect travel disruption, interruption to power supplies and other services, and the possible flooding of homes and businesses.
