📢 Please take a minute to read this personal message from the creator of River Levels UK
This is an archived message. The status has changed more recently.
Flooding possible. Be prepared.
Flooding of low-lying land and roads is expected. River Levels are above normal levels. We will continue to monitor the situation.
Information supplied by Natural Resources Wales / Cyfoeth Naturiol Cymru
This information last updated 5:22pm, Thursday 26th February.
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.
Warning no longer in force
Fri 13 Mar 2026, 9:29am
Flood Alert
Thu 12 Mar 2026, 6:12pm
Warning no longer in force
Fri 27 Feb 2026, 9:03am
Flood Alert
Thu 26 Feb 2026, 5:22pm
Warning no longer in force
Sun 22 Feb 2026, 9:32am
Flood Alert
Sun 22 Feb 2026, 12:49am
Warning no longer in force
Mon 12 Jan 2026, 8:16am
Flood Alert
Sun 11 Jan 2026, 9:28pm
Warning no longer in force
Thu 18 Dec 2025, 8:45am
Flood Alert
Wed 17 Dec 2025, 9:49pm
Areas around the river Mawddach and river Wnion, from Fairbourne to Ganllwyd and Rhydymain
Region: North
Country: Wales
Watercourses covered: Mawddach, Wnion
The area bounded in blue on the map shows the area covered by flood alerts and warnings for Mawddach and Wnion 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).
No current or recent warnings.
No current or recent warnings.
No current or recent warnings.