Missing vet Catherine Gowing's burned-out car has been found close to her home in New Brighton, Flintshire.
It was found at about 7.15pm on Thursday after a member of the public contacted police.
A 46-year-old man from Gwynedd remains in police custody after being arrested on suspicion of her murder on Tuesday night.
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Flights and trains were cancelled or delayed and drivers were warned to steer clear of some main roads as winds of nearly 90mph hit.