📢 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. Rainfall is currently affecting this area. River Levels will be above normal levels. We will continue to monitor the situation.
Information supplied by Natural Resources Wales / Cyfoeth Naturiol Cymru
This information last updated 8:18pm, Wednesday 17th December 2025.
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Warning no longer in force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 19 Jun 2026, 8:16am
Flood Alert
Thu 18 Jun 2026, 3:41pm
Warning no longer in force
Thu 28 May 2026, 7:07am
Flood Alert
Wed 27 May 2026, 8:36pm
Warning no longer in force
Thu 18 Dec 2025, 8:38am
Flood Alert
Wed 17 Dec 2025, 8:18pm
Warning no longer in force
Mon 15 Dec 2025, 4:18pm
Flood Alert
Mon 15 Dec 2025, 12:23am
Warning no longer in force
Tue 2 Dec 2025, 8:14am
Flood Alert
Mon 1 Dec 2025, 5:32am
Areas around the rivers across the whole of the island
Region: North
Country: Wales
Watercourses covered: Cefni, Alaw, Ffraw, Braint, Gwna, Crigyll
The area bounded in blue on the map shows the area covered by flood alerts and warnings for Anglesey 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.
No current or recent warnings.
No current or recent warnings.