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UK News The areas and major roads most at risk of flooding as Storm Dennis is poised to strike Wales

19:50  14 february  2020
19:50  14 february  2020 Source:   walesonline.co.uk

Storm Dennis: what do we know?

  Storm Dennis: what do we know? New storm will arrive a week on from Storm CiaraThe Sun says the new storm is set to “smash into the UK”, as the country recovers from Storm Ciara’s 97mph gales and widespread flooding. The Express says it will bring “three days of misery”.

Widespread flooding is predicted across Wales this weekend as Storm Dennis brings heavy and persistent rain to the UK.

The Met Office has issued yellow and amber weather warnings for rain for much of the country from midday on Saturday, February 15 until 3pm on Sunday, February 16.

Warnings for winds of up to 70mph are also in place for much of the weekend.

The storm system is expected to develop in the North Atlantic and then drift eastward towards Wales and the rest of the UK.

Wales set to get the wettest weather as Storm Dennis warning upgraded to amber

  Wales set to get the wettest weather as Storm Dennis warning upgraded to amber Alerts have been issued across the UKThe Met Office warns that the storm will bring major bouts of bad weather, with gusts of hurricane-force winds, flooding and travel disruption from Saturday to Monday.

Sixteen areas of Wales are predicted to be at a medium risk of flooding - which means floods are expected and preparations need to be made.

A high risk of flooding means there is a significant risk to life in an area. No high level warnings are in place at the moment.

Natural Resouces Wales has said that "river and surface water flooding is probable for parts of Wales" on Saturday and Sunday and that people need to be prepared.

The areas with flood warnings forecast for Storm Dennis on Saturday and Sunday

Maps key:

Green - very low risk

Yellow - low risk

Orange - medium risk

sixteen areas of Wales have a medium flood warning for Saturday and Sunday © Natural Resources Wales sixteen areas of Wales have a medium flood warning for Saturday and Sunday

Medium risk

  • Blaenau Gwent
  • Bridgend
  • Caerphilly
  • Carmarthenshire
  • Ceredigion
  • Conwy
  • Denbighshire
  • Gwynedd
  • Merthyr Tydfil
  • Monmouthshire
  • Neath Port Talbot
  • Newport
  • Powys
  • Rhondda Cynon Taff
  • Torfaen
  • Wrexham

Low risk

Storm Dennis to be an 'explosive' record breaker as North Wales put on Amber alert

  Storm Dennis to be an 'explosive' record breaker as North Wales put on Amber alert Storm Dennis could become one of the deepest Atlantic low pressure systems in modern records . It is now developing in the north Atlantic and is about to undergo a period of explosive cyclogenesis - the central pressure forecast to drop 50-60mb in 24 hours to around 917mb with the current record standing at 914mb. These weather warnings come just one week after the country was battered by Storm Ciara with severe floods affecting large parts of North Wales.

  • Cardiff
  • Flintshire
  • Isle of Anglesey
  • Pembrokeshire
  • Swansea
  • Vale of Glamorgan

The worst is expected to have passed by Monday when only five areas of Wales - Denbighshire, Flintshire, Monmouthshire, Powys and Wrexham are forecast to have a low risk of flooding.

a close up of a map: The map for Monday shows that the worst will be over © Natural Resources Wales The map for Monday shows that the worst will be over

What do I need to do if I live in an area with a flood warning?

  • Remain vigilant and ensure you access the latest weather forecast
  • Consider re-scheduling your journey. Don’t drive or walk through flood water
  • Think about preparing for flooding and take precautions where possible
  • Review your flood plan and start taking action
  • Check the Natural Resources Wales flood warning page or call Floodline 0345 988 1188 for the latest flooding information

The country was battered by high winds and rain last weekend when Storm Ciara brought flooding, transport disruption and power cuts in its wake.

Storm Dennis: UK braces for second weekend of floods and travel disruption

  Storm Dennis: UK braces for second weekend of floods and travel disruption Just one week after Storm Ciara caused disruption across the country, the UK must now brace for Storm Dennis to [] The post Storm Dennis: UK braces for second weekend of flooding and travel disruption appeared first on CityAM.

Many areas of Wales saw floods but one town in north Wales, Llanrwst, had particular problems with the high street and many areas of the town being turned into a torrent.

Although forecasters are predicting that Storm Dennis won't be as severe as Storm Ciara they say "disruption is likely" when it sweeps in with 70mph winds and nearly five inches (120mm) of rain.

The rain will be heaviest in upland areas of Wales but lower areas will also see between 20-80mm of rainfall.

Road, air, rail and ferry transport is likely to face problems and power cuts are likely as well.

Which roads will be worst affected?

The Met Office warns that driving conditions are likely to be treacherous, particularly in the areas with the heaviest rainfall.

The amber weather warning covers major roads including almost the whole length of the A470 from North Wales and through Merthyr Tydfil to Cardiff.

a close up of a map: The amber warning covers major roads in north Wales © Met Office The amber warning covers major roads in north Wales a close up of a map: and stretches almost to the M4 in South Wales © Met Office and stretches almost to the M4 in South Wales

The M4 in South Wales is in a yellow weather warning area but other major trunk roads such as the A465 are expected to have dangerous conditions due to rain, as well as the A494 and A5 in north Wales.

Wales hit by more than a month's rain in 48 hours with 91mph gusts recorded during Storm Dennis .
There are 54 flood warnings still in place across Wales Maerdy, Rhondda, received the most rainfall as major flooding caused South Wales Police to declare a "major incident".

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