Well, I do not think that they were speculating on anything like 'overflying' given the fact, that the tropopause was marked at FL450 in that area and tops of embd CBs at FL480.
Seeing that WX Chart me too I would not have been especially alerted.
By the way, LH507 and LH-Cargo were passing the area without any problems. LH503 30 min bef AF on the same AWY without reporting anything about turbulence or icing.
Last edited by Flyinheavy; 7th Jun 2009 at 22:12.