Gwyrfai at Bontnewydd


Current River Level: 0.27m, 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: -0.002m
(recorded at 5:30am, Friday 20th September BST)

The normal level of the Gwyrfai at Bontnewydd in average weather conditions is between 0.13m and 0.75m. It has been between these levels for at least 151 days in the past year.

The usual range of the Gwyrfai at Bontnewydd in more extreme weather conditions is between 0.15m and 0.75m. It has been between these levels for 90% of the time since monitoring began.

The most recent high is 1.44m, reached on Friday 20th November 2009 at 4:45am.

The highest level ever recorded at the Gwyrfai at Bontnewydd is 1.44m, reached on Friday 20th November 2009 at 4:45am.

  • Monitoring Station: Bontnewydd
  • Natural Resources Wales Location ID: 4158
  • Natural Resources Wales Gauge ID: 4158
  • Watercourse: Gwyrfai
  • Operational Area: Gwyrfai Seiont
  • Catchment Area: Llyn and Eryri
  • UK Hydrometric Area: Glaslyn Group
  • Nearest Town/Village: Bontnewydd
  • Local Authority: Gwynedd
  • Ceremonial County: Gwynedd

Nearby Monitoring Locations

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

Nearby Flood Warning Locations

parts of the town from the sailing club to St Helens road

No current or recent warnings.

parts of the village including Dwyran Primary School, Lon Capel the A4080 Road and Pont Cadach

No current or recent warnings.

Y Felinheli
parts of the village on Beach Road

No current or recent warnings.

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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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