We are going to Grindelwald. Departure 8:04 from Interlaken Ost. - Shuttle from the camperspace 7:30 on time to the railway station Ost - we will bring the tickets to Interlaken Ost station - we will transport the equipment, which is at HQ, to Grindelwald main road 30 metres below the valley station - Lunch at the valley station - Briefing at the take-off site after announcement on Whatsapp. Attention: The north-easterly wind is worrying us. A model (Cosmo 1) makes early downwind in Grindelwald. I will check the situation again early in the morning and confirm whether we are going to Grindelwald. If not, we'll go back to Amisbüel. I'm sorry, but the weather situation is really difficult to predict. Meteo ********* Switzerland lies on the south edge of a high with a centre over England. Extensive cloud fields until midday, partly also in the form of spreading through a mostly weak inversion at around 2300 metres. In the afternoon, with the exception of the prealps, it will become increasingly sunny with moderate to good, but often disrupted thermals due to moderate bise. Along the prealps, the residual moisture between 1800-3000 m will probably remain until the evening. The residual moisture will therefore be pushed towards the prealps from the Northeast and form extensive low cloud fields. However, the models and we expect that this moisture will not reach Grindelwald and that it will dissolve in the Interlaken area as it warms up, or turn into higher Cumulus clouds. The interpretation of the previtemps seems difficult to me, because the air at the bottom is very humid, and 1500-2000 is quite stable air (dispersion possible). Shortly for 14 o'clock: Grindelwald: 1-3/8 to 2500 (according to Previtemp 2800) Interlaken: 2-4/8 at 1800 (according to Previtemp 2400) Moderate thermals Wind Grindelwald: Ground to 1500m valley wind system from westerly directions, weak 2000-2500m little wind 3000m 10kmh SE 4000m 20kmh NE Interlaken: Ground: valley wind from the west, 15-25 1500m 5-10kmh NE 2000m 10kmh NE 3000m 20kmh E 4000m 30kmh NE

Gemäss Prognosen sollte es schon am Vormittag trocken werden, und einige Modelle prognostizierten gute Aufhellungen ab 14 Uhr. So bewegte sich der Tross mit ÖV und Shuttlebussen zum Parkplatz Hohwald, wo das Briefing statt finden sollte. Ein provisorischer Task wurde publiziert. Aber es regnete. Nicht zu sehen auf dem Radar, nicht in den Modellen. Es regnete um 11, als wir hochfuhren, es regnete um 12, als das Briefing auf 13 Uhr verschoben wurde, und es regnete um 13 Uhr. Wir hätten nochmals um 1 Stunde verschieben können, aber es schien hoffnungslos: So wurde gecancelt, und der ganze Tross bewegte sich wieder nach unten... Einige fuhren dann bald wieder hoch für einen Flug - aber für einen Task kam die Aufhellung 2, 3 Stunden zu spät.

10:00 Shuttle from Camperspace 10:35 and 11:05 Busses to Beatenberg Waldegg Bags will be shuttled to Parking Howald Briefing at the Parking 12:15 First take offs possible at 14:00, probably 14:30, Airstart 15:30 or 16:00 We are not sure about setting a task due to the Bise (NE-wind), but we can fly almost for sure and with this procedure we can decide tomorrow morning and afterwards on location. If we set a task, it is similar to Sunday. Meteo ******** A high-altitude low lies in the Mediterranean region and an area of high pressure centred over England is causing a breeze on the northern side of the Alps and the humid air will remain with us. Much residual moisture below 3000-3500 m. Thus in the afternoon over the central and northern lowlands 3-6/8 Cu with a base between 1200-1600 m. In the Alpine region 5-8/8 Sc and hardly any brightening. Localised, small-scale showers likely in the afternoon and early evening north of the Alps and in southern Ticino. Pressure gradient 7 hp north-south, and 3 hp east-west In short for Interlaken: 8/8 Cu from low down in the afternoon 6-8/8 rising to 1800 Wind: Ground at Interlaken: difficult to make a prognosis, but probably not strong from East 1000m East 5-10 kmh 1500m Northeast (depend on relief) 15 kmh 2000m Northeast 25 kmh 3000m Northeast 25 kmh

Tuesday is also cancelled, a task is out of the question. Wednesday will be difficult. Bise, but unfortunately "humid bise". According to the current forecast, there is unlikely to be sunshine (- but it will still climb as it warms up...). A valid task is difficult to realise. Thursday still bise, but dry. Task likely. Friday and Saturday look good according to today's forecast.

Die Störung kam etwas verzögert, der in der Nacht erwartete Regen kam am Morgen. Es regnete als alle Pilot:innen in Linienbussen (reserviert mit Extrafahrten) nach Waldegg fuhren, während dem Briefing regnete es kurz nicht, aber es nieselte auch am Start noch. So wurde der Start auf 13:30 und der Airstart auf 15 Uhr verschoben. Zum Glück. Anfangs ging es mega zäh (ohne Sonne), später wars aber richtig schön zu fliegen. Der kurze Task bot viele Optionen, so dass alle sehr zufrieden waren. Fabrice drehte an einer wichtigen Stelle höher als Steph Morgenthaler und Michi Maurer, schaffte einen entscheidenden Übergang und baute den Vorsprung bis ins Ziel sogar noch aus. Die top Ten: 1 Fabrice Thiébaud M CHE Niviuk x-one/Ozone Submarine 370.5 2 Stephan Morgenthaler M CHE Ozone Enzo 3/Ozone Submarine Nilmo - Zip and Go 355.7 3 Manuel Laly M FRA Ozone Enzo 3/Ozone Exoceat Air3, PPR 351.4 4 Juan Ospina M GBR Ozone Enzo 3/Ozone Submarine XCmag, Ozone, BHPA, Skywings 347.1 5 Dominik Breitinger M CHE Gin Boomerang 12/Gin GR5 GIN Gliders 346.6 6 Maxime Pinot M FRA Ozone Enzo 3/Ozone Submarine Neo | Salomon | FFVL | Ozone 346.4 7 Michael Maurer M CHE Niviuk Icepeak X-One/Niviuk Drifter2 LaSportiva / bike1a / cloud-7 / ONEDAY /344.5 8 Baptiste Lambert M FRA Ozone Enzo 3/Ozone Submarine Ozone Paragliders 344.1 9 Tim Rochas M CHE Niviuk Icepeak X-One/Niviuk Drifter 2 Niviuk / Provence-parapente / Naviter 343.9 10 Daniel Tyrkas M DEU Ozone Enzo 3/Ozone Submarine Business Insights | X-DreamFly | GSC Hochries | Icaro 2000 343.7

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.