Tywi at Llyn Brianne Reservoir

 

Current River Level: -1.443m, steady

Within the usual range for this location

Current level recorded at 9:00am, Thursday 20th September BST
(8:00am, Thursday 20th September GMT)

Change from previous measurement: 0.000m
(recorded at 7:30am, Thursday 20th September BST)

The normal level of the Tywi at Llyn Brianne Reservoir in average weather conditions is between -1.45m and 0.06m. It has been between these levels for at least 151 days in the past year.

The usual range of the Tywi at Llyn Brianne Reservoir in more extreme weather conditions is between -1.51m and 0.04m. It has been between these levels for 90% of the time since monitoring began.

The most recent high is 0.81m, reached on Wednesday 28th October 1998 at 12:00pm.

The highest level ever recorded at the Tywi at Llyn Brianne Reservoir is 1.14m, reached on Thursday 15th October 1987 at 12:00pm.

  • Monitoring Station: Llyn Brianne Reservoir
  • Environment Agency Location ID: 4204
  • Watercourse: Tywi
  • Operational Area: Tywi
  • Catchment Area: Carmarthen Bay and the Gower
  • UK Hydrometric Area: Towy Group
  • Nearest Town/Village: Llanddewi Brefi
  • Local Authority: Ceredigion
  • Ceremonial County: Dyfed
  • Latitude: 52.121783269093
  • Longitude: -3.7644416209724
  • OS Grid Reference: SN7929848520

Nearby Monitoring Locations

Monitoring locations on nearby rivers
Taming the Flood by Jeremy Purseglove

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Long term graphs will work better if you rotate your fondleslab into landscape mode.

Past Week

Long Term

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 csv

Note: 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.

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