25 July 2015 CHX LMU trouble

From 25 July  23 UTC until 27 July around 12 UTC  the CHX LMU showed strange "fog-like" measurements; in contrast to the other ceilometers: it has been blow by a wind gust. After turning it upright again it measured with the same qualitiy as before, so it seems to be a very robust construction - or it was pure luck.