A 50ft sign injured a teenage girl on Monday 26 November after it was dismantled by heavy wind.
The girl, who has not been named, was trapped under the B&M sign until emergency services arrived.
The victim suffered injuries to both her lower back as well as her nose and was immediately taken to Ysbyty Gwynedd. The seriousness of her injuries has not been confirmed. B&M’s sign also damaged several cars parked in the store’s disabled parking spaces.
B&M Regional Manager John Trubshaw told the BBC: “Some cars were damaged and I understand a lady was trapped but the police have told us that she’s what they call ‘walking wounded.”
The destruction of the sign was just one of many disastrous effects of the week’s weather. Floods in St Asaph destroyed houses leaving almost 500 temporarily homeless and lead to an elderly woman drowning in her home.
Many sections of the A55 were flooded and blocked off with cars and trucks being diverted to the girdlocked A5.
The weather also lead to rail disruptions with many train services completely cancelled.
Gwynedd Councillors have launched inquiries in order to assess how the area can be better prepared for similar weather in the future.