THE MET Office has issued a weather warning for early next week as the aftermath of Tropical Storm Helene hits the UK.

A yellow weather warning warns high winds are expected to hit west Wales between 6pm on Monday, September 17 and midday on Tuesday, September 18.

"Storm Helene is expected to push north-east towards the UK late Monday, before clearing quickly to the north of Scotland through Tuesday morning," said a Met Office spokesman.

"There remains large uncertainty in Helene's exact track, however a spell of very strong winds is expected, initially for parts of south-west England and west Wales, then later south-west Scotland and the south-east of Northern Ireland.

"Winds are likely to gust to 55-65 mph quite widely in the warning area, with possible gusts of 70-80 mph in exposure."

Pembrokeshire is within the warning area and the public are advised to expect delays and/or cancellations to road, rail, air and ferry services; some roads and bridges may close and trees felled by the high winds could prove an additional hazard.

Injuries and danger to life from flying debris are possible and there is a small chance that injuries could occur from large waves and beach material being thrown onto sea fronts.

There is also a chance of power cuts, with the potential to affect other services, such as mobile phone coverage.