Dwyfor at Garndolbenmaen


Current River Level: 0.184m, falling

Within the usual range for this location

Current level recorded at 7:30am, Friday 20th September BST
(6:30am, Friday 20th September GMT)

Change from previous measurement: -0.001m
(recorded at 5:30am, Friday 20th September BST)

The normal level of the Dwyfor at Garndolbenmaen in average weather conditions is between 0.04m and 1.35m. It has been between these levels for at least 150 days in the past year.

The usual range of the Dwyfor at Garndolbenmaen in more extreme weather conditions is between 0.10m and 0.89m. It has been between these levels for 90% of the time since monitoring began.

The most recent high is 1.46m, reached on Monday 19th July 2010 at 11:15pm.

The highest level ever recorded at the Dwyfor at Garndolbenmaen is 1.48m, reached on Tuesday 3rd February 2004 at 11:15am.

  • Monitoring Station: Garndolbenmaen
  • Natural Resources Wales Location ID: 4171
  • Natural Resources Wales Gauge ID: 4171
  • Watercourse: Dwyfor
  • Operational Area: Dwyfor
  • Catchment Area: Llyn and Eryri
  • UK Hydrometric Area: Glaslyn Group
  • Nearest Town/Village: Dolbenmaen
  • Local Authority: Gwynedd
  • Ceremonial County: Gwynedd

Nearby Monitoring Locations

There are no other monitoring stations on the Dwyfor
Monitoring locations on nearby rivers
Taming the Flood by Jeremy Purseglove

Nearby Flood Warning Locations

Morfa Bychan
parts of the village from Beach Road to River Treflys, including Greenacres Caravan Park, Glan Aber Caravan Park and Porthmadog Golf Club

No current or recent warnings.

Stryd Lombard, by the harbour, the railway line and the A487 on the Cob.

No current or recent warnings.

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.

Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.

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