Originally Posted by flyburg
]The decision to climb was not unrealistic in this particular scenario,
- not in your book, I take it, but not something I would have done with expected turbulence - whatever happened to commonsense?

CBs = turbulence= need extra margins, not less.
Flying at 35.000 with an heavy airplane you climb to 37.000 which is just*
Possible with the weight. {I read very little manoeuvre margin?) Reason for the climb, you are flying just below the clouds in an area of embedded TS and it is bumpy.
Starting the climb(with just a small margin between upper and lower red band (I read with a small manoeuvre margin which you then throw away) but still.....
ChrisN and Micro - I suggest you do some met study (even Google) - and you will find that East Anglian 'waves' are indeed mountain waves, probably emanating form the Welsh uplands.