The media launch of am enormous new zip wire at Penrhyn quarry near Bethesda has been postponed today due to high winds.
'Zip World' is due to open to the public on Saturday.
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Storm Doris will bring a squally band of rain at first with disruptive gales, especially further north.
Winds will strengthen to gale force by dawn, these severe across exposed coasts and hills particularly in the southwest.
A Swansea charity worker says he was left "shocked and saddened" after being questioned by counter-terrorism officers returning from Iraq.