PWC: Meteo and Infos Sunday
We go to the Amisbüel Take Off.
Busses leave 9:05, 2 x 9:35, 1 x 10:05 from INTERLAKEN WEST, Bahnhof
Briefing 10:45 at Howald-Parking
Take Off around 12:15-14h
METEO
On Sunday, the Alpine region will lie on the front of a low pressure zone over north-west Europe in a moderately humid and mild south-westerly current. Tonight, a low pressure system over the Benelux countries brought more humid air to the north-west half of Switzerland in particular. The current rain is evidence of this.
After a brief period of calm, Switzerland will once again be under the influence of a new low pressure system with its centre over Brittany on Sunday evening and humid and unstable stratified air will flow towards us. A cold front crosses Switzerland on Monday.
Light rain until about 9 am
Clearing from 10 am
With the radiation we expect:
Interlaken
2-3/8, base rising to 1800m at 15 pm (theoretically higher, but I don't believe)
Above that 2-6/8 AC to 3200
Very low air pressure (1013).
In the course of the afternoon first isolated developments (some from 1600), in the evening widespread showers and isolated thunderstorms
We can hope for a window of usable conditions from 11am to 3pm - but the wind is strong:
The higher and the further west, the stronger the wind.
Interlaken
Ground: rather weak valley wind system, getting stronger in the afternoon, 10-20 kmh W
1500m 10 kmh W
2000m 20 kmh WSW
2500m 25 kmh SW
3000m 35 kmh SW
Further West it is stronger.
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