Weather and Infos for Sunday, update 07:15
Martin Scheel,
14. August 2021
Weather and Infos for Sunday, update 07:15 Very warm and somewhat unstable air will be brought to the Alps with a westerly high-altitude current. Today, Sunday, the high pressure area in the Alpine region will gradually weaken. This will increase the tendency for thunderstorms. Quick formation of 2-3/8 cumulus, base 3500m and higher Later in the afternoon spreading clouds. At certain times cirrus clouds, but hardly dampening the radiation Thermals 1-2m/s after 11, 2-4 m/s and more from 12 Showers: Cosmo 1 model makes showers early, from west to east, Disentis at 13h. Probably it is less as expected. Winds at 14h: Ground: Relatively weak valley winds, Chur 25 km/h 2000m: SW, 10-15kmh 3000m: SW, 15-20km/h 4000 W, 25-35km/h Föhn will be early at Disentis Briefing middle station 10:00 (maybe later) Take Off 11:15 Chairlift will work 10:00 -12:00 and 13:00 - 13:30 Monday (official restday) Possibly a flight (10-13h), certainly no task. In the evening/night some precipitation Wind shifts to NW, strong Tuesday North congestion, possibly can be flown under a low base (2000) Wednesday Stable (bad thermals) Wind weaker again, 1500: 5-10kn WSW North wind component must be taken into account No sandwich on monday