Flood Alerts and Warnings

Flood Alerts and Flood Warnings for four areas relevant to Cookham are published by the Environment Agency.

When things first start to look dicey, the Environment Agency will declare a Flood Alert for the River Thames from Hurley to Cookham. This is the lowest level of warning and indicates "Flooding is possible. Be prepared."

If things get worse, the EA will declare Flood Warnings for smaller parts of the Hurley to Cookham stretch of the Thames. Most of Cookham is covered by an area named Cookham village and east Cookham Rise which includes Marsh Meadow, Cookham Moor and Widbrook Common.

For people concerned about Spade Oak Reach and Cock Marsh, the appropriate EA Flood Warning area is the  River Thames at 'Bourne End'.

For the parts of Cookham Dean down by the river, the Flood Warning information is given in the area the EA call  "River Thames at Marlow and Bisham".

The EA map of our Flood Warning areas shows which parts of Cookham fall into each area (pdf 2.9MB, with kind permission of EA Partnership & Strategic Overview team, Berks and Bucks, 14 September 2015). 

Surface water flooding in Cookham


This weather forecast is generated by the Met Office Weather Widget

This weather forecast is generated by the Met Office Weather Widget


Flood risk forecasts for three days ahead from surface water and rivers in Windsor and Maidenhead are issued by the Environment Agency in its 'Thames' list.

These weather forecasts from the Met Office also indicate what's coming up in our area. The four symbols are: weather, probability of rain, temperature (Celsius) and wind (mph).



Why show a weather forecast for Maidenhead instead of Cookham? The Met Office publishes information on a grid, and this location is the closest one to Cookham. It's the most relevant for concerns about surface water flooding in Cookham. Forecasts are also available for nearby sites at Cliveden, Bisham Abbey and Marlow. To change the location of the forecast click "Options" beneath the map. If you are concerned about flooding of the River Thames, scroll down to the "Weather forecast relevant to flooding of the Thames". 




River level

This live reading of the Enivironment Agency river gauge at Cookham Lock (upstream) is updated every hour.



1.46m - highest level in these records (January 2003)..... 1.36m - 2014 maximum level reached on on 10 February, Cookham village cut off by road..... 1.24m - in 2014 the water on Spade Oak Reach road was too deep for cars when the river reached this level.....1.18m  - at this level Sutton Road at Widbrook Common flooded in 2014..... 1.12m  - when the river rose this high in 2014 the A4094 north of Cookham bridge flooded...... 1.00m is the level when the Moor Road (B4447 west of Cookham High Street) started to flood in 2013 and in 2014..... 0.43m - the typical range at Cookham Lock is 0 to 0.43m.






gov.uk publishes a live map of English and Welsh river levels. Or for a different presentation go to the gaugemap site.

The local river status for boaters, and the flow rate of the Thames is shown at the Maidenhead Rowing Club river status page.  The Environment Agency publishes river conditions for boaters along the whole River Thames.

Weather forecast relevant to flooding of the Thames


This weather forecast is generated by the Met Office Weather Widget
The four symbols are: weather, probability of rain, temperature (Celsius), and wind (mph).

Why show a weather forecast for Oxford instead of Cookham? Flooding in Cookham 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 a couple of days for rain running into the Thames at Oxford to flow down the river to Cookham.

Telephone numbers

Environment Agency Floodline. Call Floodline on 0345 988 1188 or 0845 988 1188, select option 1 and enter Quickdial number 173199 to get more information for Cookham.

Thames Water 24hr customer care 0800 316 9800.

Royal Borough of Windsor and Maidenhead. In normal office hours call 01628 683800.  Out of hours, call the Emergency Control Room 01753 853517.

Cookham Parish Council Flood Hub.  For local information, and to receive or offer non-emergency help to Cookham residents or businesses.  During a flood call 07593 528060 or 07593 528062.