Upper Dee catchment

Page last updated 22:17 21 September 2023.
Areas around the River Dee from Llanuwchllyn to Llangollen
River levels are expected to be above normal. Flooding of low-lying land and roads is expected. We will continue to monitor the situation. You can monitor the situation in your area by using our 'River Levels, Rainfall and Sea Data' on our website. For more information on our Flood Alerts and how we issue them, please visit the ‘How we forecast floods, issue warnings and assess flood risk’ page on our website.

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