At 12:45pm, Sunday 24th November GMT
Within the usual range for this location
Falling, -0.020 from previous measurement at 12:15pm, Sunday 24th November GMT
Mimmshall Brook at Warrengate Road
No current or recent warnings.
No current or recent warnings.
No current or recent warnings.
Upper River Colne and Radlett Brook
Flood Alert
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 Mimmshall Brook at North Mymms is between 0.05m and 1.50m. It has been between these levels for 90% of the time since monitoring began.
The typical recent level of the Mimmshall Brook at North Mymms over the past 12 months has been between 0.24m and 0.41m. It has been between these levels for at least 150 days in the past year.
The highest level ever recorded at the Mimmshall Brook at North Mymms is 2.35m, reached on Tuesday 10th February 2009 at 2:30am.
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
