Mr Mac, that's interesting about rising heat causing turbulence, never heard that before at altitude.
SOS, point taken. I don't mean to scare anybody unduly. However, i find it fascinating to watch peoples attitudes to weather radar returns. Its generally the older guys that come out with the lines like 'aah what you scared of? In the old days we didn't have radar and would fly through things much worst than that' as they point out of the window....