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Wales Online
Wales Online
National
Cathy Owen

Met Office issues thunderstorm warning for large part of Wales

Make the most of Saturday's sunshine, as there is a warning of thunderstorms for large parts of Wales on Sunday. The Met Office has issued a yellow warning saying large amounts of rain could fall in a short period of time.

It comes after a week of unsettled weather with thunderstorms in Pembrokeshire on Thursday night, and flooding in Ynyswen on Friday. The warning comes into place at 4am on Sunday remains until 5am on Monday.

It says: "A band of heavy rain will move northwards through Sunday morning, followed by scattered heavy showers and isolated thunderstorms during the afternoon. Further heavy rain and thunderstorms are possible during Sunday evening and night, particularly across eastern parts of England, easing later. 10-20 mm of rain is likely in one to three hours in many areas, with 30 mm in a few places through the morning.

"However, where thunderstorms occur during the afternoon, evening and overnight, there is a small chance of 20-30 mm falling within an hour and as much as 60 mm in 2-3 hours, along with lightning and a chance of gusty winds and hail, this most likely across eastern parts of England."

This is the warning area:

(Met Office)

The areas in Wales covered by the warning are:

  • Blaenau Gwent
  • Bridgend
  • Caerphilly
  • Cardiff
  • Merthyr Tydfil
  • Monmouthshire
  • Neath Port Talbot
  • Newport
  • Powys
  • Rhondda Cynon Taf
  • Torfaen
  • Vale of Glamorgan.

The Met Office forecast for the whole of Wales on Sunday says: "Early heavy rain clears northwards through the morning to leave a day of sunny spells and scattered showers. Maximum temperature 18 °C."

The outlook for Monday to Wednesday, says: " Monday, a mixture of sunny spells and showers. Tuesday, dry with sunny spells for many with fewer showers. Windier on Wednesday with scattered showers, especially in west. Mild throughout."

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