She was with her partner, who was also swept up by the wave and washed a shorter distance across the quay, into some railings which stopped him being swept into the sea.
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The huge waves in Newquay
RNLI lifeboat volunteers saw the pair and went to help them, along with a local charter-boat skipper. They called an ambulance and helped the injured woman to shelter near the lifeboat station.
She was taken to hospital, and her partner was taken into the lifeboat station by the RNLI volunteers to warm up and dry out.
Police advised people to stay a safe distance from the harbour wall in the dangerous conditions.
Storm Imogen Sweeps South Of England
Storm Imogen Sweeps The South Of England(01 of05)
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NEWQUAY, UNITED KINGDOM - FEBRUARY 08: Rough seas are seen in Newquay on February 8, 2016 in Newquay, England. Parts of the UK are currently being battered by Storm Imogen, the ninth named storm to hit the UK this season. Thousands of homes have been left without power and commuters hit by road and rail chaos as Storm Imogen batters the South with gale force winds and torrential rain. (Photo by Matt Cardy/Getty Images) (credit:Matt Cardy via Getty Images)
Storm Imogen Sweeps The South Of England(02 of05)
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NEWQUAY, UNITED KINGDOM - FEBRUARY 08: A man looks at a car that has been partially covered in sand in Fistral Beach car park on February 8, 2016 in Newquay, England. Parts of the UK are currently being battered by Storm Imogen, the ninth named storm to hit the UK this season. Thousands of homes have been left without power and commuters hit by road and rail chaos as Storm Imogen batters the South with gale force winds and torrential rain. (Photo by Matt Cardy/Getty Images) (credit:Matt Cardy via Getty Images)
Storm Imogen Sweeps The South Of England(03 of05)
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NEWQUAY, UNITED KINGDOM - FEBRUARY 08: A man shelters himself from the winds in Newquay on February 8, 2016 in Newquay, England. Parts of the UK are currently being battered by Storm Imogen, the ninth named storm to hit the UK this season. Thousands of homes have been left without power and commuters hit by road and rail chaos as Storm Imogen batters the South with gale force winds and torrential rain. (Photo by Matt Cardy/Getty Images) (credit:Matt Cardy via Getty Images)
Storm Imogen Sweeps The South Of England(04 of05)
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NEWQUAY, UNITED KINGDOM - FEBRUARY 08: A man moves a traffic cone to close Fistral Beach car park because of strong winds on February 8, 2016 in Newquay, England. Parts of the UK are currently being battered by Storm Imogen, the ninth named storm to hit the UK this season. Thousands of homes have been left without power and commuters hit by road and rail chaos as Storm Imogen batters the South with gale force winds and torrential rain. (Photo by Matt Cardy/Getty Images) (credit:Matt Cardy via Getty Images)
Storm Imogen Sweeps The South Of England(05 of05)
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NEWQUAY, UNITED KINGDOM - FEBRUARY 08: A man moves a traffic cone to close Fistral Beach car park because of strong winds on February 8, 2016 in Newquay, England. Parts of the UK are currently being battered by Storm Imogen, the ninth named storm to hit the UK this season. Thousands of homes have been left without power and commuters hit by road and rail chaos as Storm Imogen batters the South with gale force winds and torrential rain. (Photo by Matt Cardy/Getty Images) (credit:Matt Cardy via Getty Images)
A Newquay RNLI volunteer said: "Please take care and respect the water. If you see anybody in difficulties, call 999 and ask for the Coastguard".
A spokespersn for the RNLI said: "Just after 4pm, one hour before high-tide, a large wave came over the harbour wall near the Harbour Master's office and swept the woman more than 50-feet along the walkway and into one of the boats that is laid-up on the quay for the winter."