Similar situation as yesterday, with a little bit more humidity:
Humid air will produce Congestus pretty soon, with spreading the clouds. The southerly airflow above 2500m will drift this clouds over to Engelberg in the early afternoon. Later we await Congestus and isolated CB.
Prediction of Congestus-free zone around Engelberg:
COSMO1 until 15:30h
WRF until 13h
AROME until 18h
The prognosis, where, and when the first Congestus is in our area is very difficult. I think, we can fly until 14:30 :-)
My calculation is the same (2300 at 13h).
Moderate valley brises.
1500-2500m: Probably we will feel the northeasterly a little bit (as later as more), but the influence of the clouds is important as well.
Above 3000m: South wind, 10-15kn
31 May 2017, Martin Scheel
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