Blimey, a degree further North than me here in Poshshire, but the same elevatikn tomwithin 2 metres.'Great Harwood is situated at 53.78° North latitude, 2.42° West longitude and 119 meters elevation above the sea level'.
You're clearly forgetting the Great Merseyside Sand flood of '49Altitude: 11 m (36 ft)
No chance of flooding though, unless there is flippin' huge tide. Very sandy soil so good for drainage