Danielle Catton, 27, was last at Revoe Park around 10.30am on Saturday (June 26).
She is described as white, 5ft 4in tall, with shoulder length pink hair and tattoos on her arms of roses and a wolf. She was wearing a red cropped hoodie with blue jogging bottoms and white adidas trainers with silver stripes at the time of her disappearance.
Danielle has links to Blackpool, Fleetwood, Lancaster and Morecambe.
Anyone with information is urged to call 101 quoting log 0650 of June 27. In an emergency call 999.
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