FloodRadar
Log inCreate free account

Explore FloodRadar
← All Flood Warning Areas

BeaumarisBiwmares

Flood warning area Wales Irish Sea In North West Wales coastline
NRW has no flood warning in force for this area. Checked 20 Sep 2026, 06:48 UTC, from Natural Resources Wales’ live warnings feed. That is a statement about this moment, not about whether the area can flood.

What this area covers

Parts of the town between Gallows Point and the Castle including Castle Street, Victoria Terrace, the A545 and Mill Lane

Natural Resources Wales’ own description of the area.

Where this area is

Boundary: Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Reused under the Open Government Licence v3.0. Boundaries from DataMapWales. Simplified for display — it shows roughly where the area is, and is not a property-level boundary.

River gauges in and near this area

Bodffordd River Station
17.1 km from the centre of this area · Cefni
0.095m
20 Sep, 06:15
Peblic Seiont River Station
17.2 km from the centre of this area · Seiont
0.857m
20 Sep, 06:30
Afon Rhyd Y Valley River Station
17.8 km from the centre of this area · TBC
1.957mAOD
20 Sep, 06:30
Nant Peris River Station
17.9 km from the centre of this area · Nant Peris
0.878m
20 Sep, 06:15
Afon Braint River Station
18.8 km from the centre of this area · Braint
1.424mAOD
20 Sep, 06:15
Bontnewydd
19.7 km from the centre of this area · Gwyrfai
0.545m
20 Sep, 06:30
Trefriw TideGauge
21.5 km from the centre of this area · Conwy
2.006m
20 Sep, 06:15
Llanrwst Bont Fawr River Station
24.4 km from the centre of this area · Conwy
5.129mAOD
20 Sep, 06:15
Afon Colwyn River Station
25.6 km from the centre of this area · Colwyn
0.155m
20 Sep, 06:30
Cwmlanerch River Station
26.8 km from the centre of this area · Conwy
1.161m
20 Sep, 06:30

Distances are from the centre of the area, so a gauge marked “in this area” can show a larger distance than one outside it. A nearby gauge is context, not proof that this area is or is not flooding.

Has it flooded here before?

Natural Resources Wales warnings FloodRadar holds for this area:

Live entries are timed by our 15-minute check (UK time), not the moment NRW issued or lifted them.

FloodRadar’s record of flood warnings for Welsh areas starts on 15 February 2006. Anything earlier is a gap in what we have banked, not a statement that this area has not flooded — it may well have. Natural Resources Wales publishes Welsh flooding information at naturalresources.wales.

Official sources for this area

Live flood warnings from Natural Resources Wales →
Floodline: 0345 988 1188 — the same number covers England, Scotland and Wales.
Welsh name: Biwmares
NRW region: NRW Northern
Area code: 101FWTWN480

Live warnings are NRW’s and NRW is the authority on them. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Reused under the Open Government Licence v3.0. Boundaries from DataMapWales. (OGL 3.0).