North Wales issued ‘danger to life’ weather warning amid thunderstorms and flooding


The Met Office has issued a yellow weather warning for parts of Wales which will be in place from 12pm until 10pm on Sunday (May 12) due to forecast heavy rain and thunderstorms.

The thunderstorms and heavy rain associated with the weather warning could lead to flooding, travel disruptions, power outages and could also cause “danger to life” in some instances.

The yellow weather warning will affect all of North Wales including Conwy, Denbighshire, Flintshire and Wrexham.

What to expect from the yellow weather warning in North Wales

The Met Office said the yellow weather warning was issued for North Wales due to heavy showers and thunderstorms which could lead to disruptions and flooding.

The thunderstorms and heavy rain associated with the yellow weather warning could also cause:

  • Difficult driving conditions and road closures due to spray and sudden flooding
  • Flooding and/or lightning strikes could cause delays and cancellations to train and bus services
  • Power cuts and disruptions to other services
  • Fast flowing or deep floodwater causing danger to life, particularly in places such as road and railway underpasses
  • Homes and businesses could be flooded quickly, with damage to buildings from floodwater, lightning strikes, hail or strong winds

A Met Office spokesperson added: “Heavy showers and thunderstorms are likely to break out in the south of this area late Sunday morning and early Sunday afternoon, moving steadily north whilst growing into larger areas of rain before clearing the area.

“Some intense downpours are possible in a few places, giving up to 30 mm in less than hour and perhaps 40-50 mm over 2 to 3 hours leading to surface water flooding.

“Hail, frequent lightning strikes and strong wind gusts will be additional localised hazards.”

Everywhere in Wales set to be affected by the yellow weather warning

Areas of Wales set to be impacted by the yellow weather warning on Sunday are:

  • Blaenau Gwent
  • Bridgend
  • Caerphilly
  • Cardiff
  • Carmarthenshire
  • Ceredigion
  • Conwy
  • Denbighshire
  • Flintshire
  • Gwynedd
  • Isle of Anglesey
  • Merthyr Tydfil
  • Monmouthshire
  • Neath Port Talbot
  • Newport
  • Powys
  • Rhondda Cynon Taf
  • Swansea
  • Torfaen
  • Vale of Glamorgan
  • Wrexham

The Leader: The yellow weather warning on Sunday (May 12) is set to impact most of Wales.The yellow weather warning on Sunday (May 12) is set to impact most of Wales. (Image: Met Office)

How to prepare for the yellow weather warning

The Met Office has issued advice on how to prepare for the yellow weather warning on Sunday and the risk posed by thunderstorms and flooding.

A Met Office spokesperson said: “Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit.

“Prepare to protect your property and people from injury. Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences.

“Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary.

“People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items.

“If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning.

“If you are on an elevated area move to lower ground.

“Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.”

The yellow weather warning will be in place across North Wales from 12pm until 10pm on Sunday, May 12.

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