[ableal]

Another 3+ hours (Apr 17 16:04:11 WEST) - the layer seems to have moved a bit back north (and further east?).

There's an Air Berlin A330 flying at 12,000 ft over Germany ...

[ableal]

Another day (Apr 18 11:54:41 WEST 2010), layers about steady.

A couple of KLM 737s over the Netherlands, a Piper over Germany, an A320 at 29,000 ft over eastern Austria ...