I didn’t find the reason why Great Yarmouth would be bombed in the first place but, judging from the old pictures there was significant bombing there.
I went there once on a warm day to go swimming with my wife and baby daughter. I touched my toe into the North Sea and gaaaaaaaawd it was cold! I don’t think I would’ve enjoyed a single minute of it, so we just sunbathed, maybe got a cup of tea and some chips.
So the Gulf Stream was all streamed out by the time it got to Great Yarmouth?