October 25, 2026 - 551 views
Flood alerts remain in place along parts of the North Wales coast and across north Gwynedd on Sunday (25 October) following a spell of wet and windy weather, with further strong winds and rain expected as Storm Boelo continues to affect the region.
Natural Resources Wales is warning of possible flooding around rivers in north Gwynedd, from Abergwyngregyn to Aberdaron, as well as along coastal areas from Llanddulas to the east coast of Anglesey and from the Menai Strait southwards to Borth.
Debris caused by heavy winds is also an issue. North Wales Police have rerported a significant amount of branches and fallen tress on a number of routes including on the A470 between the Black Cat Roundabout and Llanrwst.
The alerts follow a weekend of unsettled weather, with heavy rain and strengthening winds associated with Storm Boelo. The Met Office says very strong winds are continuing across Wales on Sunday, with the strongest conditions potentially disruptive in northern areas. Although there should be some brighter spells, scattered showers are expected, particularly over higher ground.
Natural Resources Wales says river levels in north Gwynedd are above normal, with rainfall continuing to affect the area. Flooding of low-lying land and roads is expected, and people living in or travelling through areas close to rivers are being advised to remain alert to changing conditions.
A separate coastal flood alert covers the stretch from Llanddulas to the east coast of Anglesey. The agency identified a period of increased risk between nine o'clock and 10.15 this morning, Sunday, when high tides and weather conditions could combine to cause flooding.
Further south and west, a wider alert covers the North West Wales coastline from the Menai Strait to Borth. The risk is expected to continue from Saturday evening's high tide through to Tuesday evening, October 27, with conditions around successive high tides requiring particular attention.
For local people, a flood alert means flooding is possible and it is time to be prepared. It does not mean that every property in the affected area will flood, but low-lying roads, land beside rivers, estuaries and coastal areas could be affected. Drivers should be prepared for localised flooding and possible disruption, while people walking along promenades, beaches and coastal footpaths should take extra care, particularly in exposed locations.
The combination of high tides, strong winds and unsettled weather can increase the risk of coastal flooding. Conditions can change quickly, and waves may reach areas beyond the usual waterline. People are being advised to keep away from exposed sea walls and promenades during rough conditions and not to put themselves at risk trying to photograph large waves.
The Met Office forecast suggests that the unsettled conditions will not disappear immediately. Winds and showers are expected to ease for a time overnight into Monday, but another spell of rain and strengthening winds is forecast to arrive in the early hours.
Monday is expected to bring persistent rain during the morning, with very strong winds and coastal gales developing. Some brighter spells may follow during the afternoon, although the weather is likely to remain blustery. Tuesday is also forecast to be windy, with coastal gales and scattered showers before conditions begin to ease on Wednesday.
Natural Resources Wales' five-day flood risk outlook also indicates that people in Gwynedd and Anglesey should continue to pay attention to the possibility of flooding early next week, even if the weather improves temporarily.
Residents are advised to check the latest flood alerts and local travel information before setting out, especially if their journeys involve low-lying coastal roads or routes close to rivers. Anyone in an area at risk should consider moving valuable belongings out of basements or ground-floor areas, checking drains and preparing for possible disruption.
People can check the latest information through the Natural Resources Wales flood warning service at www.flood-warning.naturalresources.wales, where they can also sign up for free flood warnings. The agency's Floodline service is available on 0345 988 1188.
Although the worst of any individual spell of rain may pass, the message from the agencies is to remain prepared while strong winds, high tides and further unsettled weather continue to affect North Wales.
