Anglesey Catchment

Warning no longer in force

Information supplied by Natural Resources Wales / Cyfoeth Naturiol Cymru

This information last updated 7:07am, Thursday 28th May.

Most recent flood warnings and alerts for Anglesey Catchment

• Warning no longer in force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• Warning no longer in force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• Warning no longer in force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• Warning no longer in force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• Warning no longer in force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

Flood Warning Area Details

Areas around the rivers across the whole of the island

Region: North

Country: Wales

Watercourses covered: Cefni, Alaw, Ffraw, Braint, Gwna, Crigyll

Area covered by this alert location

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).

Other Nearby Flood Warning Locations