Page last updated 09:35 17 September 2025.
Areas around the river Glaslyn and river Dwyryd, from Dyffryn Ardudwy to Nant Gwynant
Rainfall is currently affecting this area. River Levels are above normal levels. We will continue to monitor the situation.
Floodline
0345 988 1188
| Flood Alert in force | 06:15 on 17 Sep 2025 |
| Flood Alert not in force | 15:41 on 01 Sep 2025 |
| Flood Alert in force | 08:01 on 01 Sep 2025 |
| Flood Alert not in force | 08:52 on 24 Feb 2025 |
| Flood Alert in force | 14:07 on 23 Feb 2025 |
| Flood Alert not in force | 17:01 on 02 Jan 2025 |
| Flood Alert in force | 16:47 on 31 Dec 2024 |
| Flood Alert not in force | 09:06 on 19 Dec 2024 |
| Flood Alert in force | 08:03 on 18 Dec 2024 |
| Flood Alert not in force | 09:39 on 08 Dec 2024 |
Status History is limited to the 10 most recent updates
What to do before, during and after a flood
You can also:
Other ways to get flood warning information
To report flooding or hear current flood warnings in force call the 24-hour Floodline service on:
Telephone: 0345 988 1188
Type talk: 0345 602 6340 (for the hard of hearing)
Information on call charges
Flood information for England, Northern Ireland and Scotland
Flood warnings in force in England Flooding information for Northern Ireland Flood warnings in force in ScotlandIs there anything wrong with this page? Give us your feedback.