Police are appealing to the public for any information of a vulnerable missing man from Aylesbury.
Mr Wheeler is 5ft 9ins tall, of stocky build, with short brown hair and brown eyes.
He was last seen in the Bierton Road area where he was wearing grey tracksuit trousers, a grey t-shirt, jacket and sand-coloured boots.
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The latest weather for the east with Philippa
The latest weather for the west with Philippa
Met Office issues storm warnings overnight as 80mph winds are expected across the south and east. Storm Imogen is due at around 3am