Flood Risk Forecasts and River Levels

You can view a 3 day Flood Risk Forecast from the EA here:
3 Day Flood Risk Forecast

You can view River Levels in the surrounding areas upstream and downstream from Datchet here:
River Levels on River Thames
Each green dot on the map represents a measurement station / lock.  You can view information upstream or downstream.

Flood Warnings from Rivers

When things first start to look like flooding is a possibility, the Environment Agency will declare a Flood Alert for the River Thames at Datchet.    As things progress, these will be changed to Flood Warning or Severe Flood Warning.

Surface Water Flooding in Datchet


The four symbols are: weather, probability of rain, temperature (Celsius) and wind (mph).

Why show a weather forecast for Eton and not Datchet?  The Met Office publishes information on a grid, and this location is the closest one to Datchet. It's the most relevant for concerns about surface water flooding in Datchet.   To change the location of the forecast click "Options" beneath the map. If you are concerned about flooding of the River Thames, see below:  "Weather forecast relevant to flooding of the Thames". 

This Eton weather forecast is generated by the Met Office Weather Widget

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Weather forecast relevant to flooding of the Thames

The four symbols are: weather, probability of rain, temperature (Celsius), and wind (mph).

Why show a weather forecast for Oxford instead of Datchet? Flooding in Datchet is determined by the rainfall in the upstream catchment of the River Thames.  Oxford is roughly in the middle of the upstream catchment and so the rainfall forecast there is a better indicator of future flooding than a more local site. It takes 2-3 days for rain in Oxford to reach Datchet.

This weather forecast is generated by the Met Office Weather Widget