North Gwynedd Catchment

Flood Alert

In addition to the area detailed, some localised flooding problems may result from surface water. River levels are above normal. We will continue to monitor the situation. This message remains in force until further notice.

This information last updated 3:44am, Monday 15th January.

Flood Warning Area Details

Areas around the rivers of North West Wales, from Abergwyngregyn to Aberdaron.

Region: Wales

Watercourses covered: Adda, Seiont, Gwyrfai, Carrog, Llyfni, Desach, Dwyfach, Wen, Rhyd Hir, Erch, Soch, Daron, Cyllfelin

Area covered by this alert location

The area bounded in blue on the map shows the area covered by flood alerts and warnings for North Gwynedd Catchment.

Icons on the map show nearby level monitoring stations. They are not necessarily related to this particular flood warning area.

Other Nearby Flood Warning Locations

West Anglesey Coastline
areas on the western coast of Anglesey, from Cemlyn Bay to Llanddwyn Island

No current or recent warnings.

North Wales Coast
areas along the North Wales coast from the Dee estuary to the east coast of Anglesey

No current or recent warnings.

Lleyn Peninsula and Cardigan Bay Coastline
areas along the North West Wales coastline from the Menai Straits to Aberdyfi

No current or recent warnings.

Glaslyn and Dwyryd Catchment
areas around the river Glaslyn and river Dwyryd, from Dyffryn Ardudwy to Nant Gwynant

Lower Dee Valley
Llangollen to Trevalyn Meadows

No current or recent warnings. is an independent website. It is not associated with the Environment Agency or any other supplier of river level information. is a Good Stuff website.