At 2:45pm, Thursday 21st November GMT
Within the usual range for this location
Steady, no change from previous measurement at 2:30pm, Thursday 21st November GMT
River Ash in the Borough of Spelthorne
No current or recent warnings.
No current or recent warnings.
River Thames at Staines and Egham
No current or recent warnings.
River Thames from Datchet to Shepperton Green
No current or recent warnings.
Properties closest to the River Thames from Littleton Lane, Shepperton Green to Shepperton Lock
No current or recent warnings.
Darker blue shaded areas on long term data indicate maximum and minimum levels for the date (you may need to zoom in closer to see them).
Long term data may have gaps where the API data was not available.
Download long term data as csvNote: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they are ridiculously high compared to the values either side of them). It is your responsibility to filter these out if necessary.
Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.
Please note: Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.
The usual range of the River Ash at Knowle Green is between 0.37m and 0.85m. It has been between these levels for 90% of the time since monitoring began.
The typical recent level of the River Ash at Knowle Green over the past 12 months has been between 0.40m and 0.53m. It has been between these levels for at least 151 days in the past year.
The highest level ever recorded at the River Ash at Knowle Green is 1.16m, reached on Wednesday 12th February 2014 at 12:30am.
Note that this data may not take account of recent measurements, as we wait until a level has been verified by the Environment Agency before adding it to our records.
Monitoring locations on nearby rivers
River Thames at Staines River Colne at Staines Trading Estate
Wraysbury River at Stains, Pounds Mill Moor Lane Offtake River Thames at Penton Hook Colne Brook at Hythe End Wraysbury River at Staines Moor
River Thames at Bell Weir Stanwell Gate 2 (Airport Way) River Colne at Stanwell Mill Stanwell Gate 1 (Lake Offtake) Moat at Thorpe Chertsey Bourne at Chertsey Bourne Wraysbury Mill River Thames at Chertsey Lock Pyrcroft Road RL Chertsey Bourne at Guildford Street
Chertsey Bourne at Free Prae Road Colne Brook at Horton Mill FWS
Wraysbury Offtake FD