River Levels

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River Levels

Glaslyn and Dwyryd Catchment

Message issued at 1:26am, Tuesday 27th October 2026

Flooding possible. Be prepared.

Flood Alert

Flooding of low-lying land and roads is expected. Rainfall is currently affecting this area. River Levels are above normal levels. We will continue to monitor the situation.

Information supplied by Natural Resources Wales / Cyfoeth Naturiol Cymru

Message issued at 1:26am, Tuesday 27th October 2026.

This page is a dedicated URL for a specific message issued at a particular time. You should not bookmark this page, as the current situation may have changed since this message was issued.

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Most recent flood warnings and alerts for Glaslyn and Dwyryd Catchment

Flood Warning Area Details

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

Region: North

Country: Wales

Watercourses covered: Glaslyn, Dwyryd, Prysor, Artro

Area covered by this alert location

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

Note: the area shown on the map is the area covered by flood alerts and warnings. It is not a live map of current flooding. The area covered broadly equates to the area where the risk of flooding in any year is greater than 1% (the "hundred year" flood risk).

Other Nearby Flood Warning Locations

Mawddach and Wnion Catchment
areas around the river Mawddach and river Wnion, from Fairbourne to Ganllwyd and Rhydymain

Recent warnings no longer in force.

Upper Dee Valley
Llanuwchllyn to Llangollen including Corwen

No current or recent warnings.

Lower Dee Valley
Llangollen to Trevalyn Meadows

No current or recent warnings.

Anglesey Catchment
areas around the rivers across the whole of the island

No current or recent warnings.

Elwy and Gele Catchment
areas around the river Elwy and river Gele, from Gwytherin to St Asaph and including Abergele

Recent warnings no longer in force.

RiverLevels.uk is an independent website. It is not associated with the Environment Agency or any other supplier of river level information. All data used on this site is supplied under licence. For queries about the data, please contact the underlying supplier.

RiverLevels.uk is a Good Stuff website.