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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Grimsel Distance
Grimsel-Hospiz 0.0 km
Ulrichen 7.4 km
Lago di Robièi 24.1 km
Titlis 24.7 km
Meiringen 25.8 km
Binn 27.2 km
Hospental 28.4 km
Engelberg 29.4 km
Eggishorn 30.9 km
Naetschen 32.8 km
Giswil 35.0 km
Jungfraujoch 39.0 km
Piotta 39.3 km
Cevio 40.4 km
Alpnach Airport 41.8 km
Buochs Airport 44.7 km
Pilatus 46.8 km
Altdorf 47.7 km
Lucerne 51.5 km
Interlaken 52.8 km
Schüpfheim 55.1 km
Emmen Airport 58.0 km
Blatten 59.0 km
Disentis/Sedrun 59.9 km
Visp 61.8 km
Cimetta 65.0 km
Napf 65.2 km
Locarno/Monti 66.6 km
Matro 68.0 km
Comprovasco 68.1 km
Grächen 68.8 km
Cham 70.0 km
Langnau im Emmental 71.6 km
Locarno Airport 75.1 km
Mosen 75.4 km
Egolzwil 76.8 km
Einsiedeln 78.1 km
Wädenswil 81.5 km
Adelboden 85.7 km
Wimmis 85.7 km
Zermatt 87.7 km
Gornergrat 88.6 km
Monte Rosa-Plattje 88.6 km
Lugano Airport 89.1 km
Lachen 89.2 km
Zürich 93.0 km
Buchs 94.2 km
San Bernardino 95.3 km
Glarus 96.4 km
Obergösgen 96.5 km
Stabio 97.0 km
Reckenholz 97.0 km
Wynau 97.1 km
Dübendorf Airport 98.1 km
Pian Rosa 98.5 km
Grono 98.6 km
Crap Masegn 99.0 km
Bern-Belp 100.5 km
Ilanz 100.8 km
Brugg-Wildegg 100.9 km
Lägern 101.2 km
Koppigen 101.3 km
Crans-Montana 101.5 km
Elm 101.6 km
Zurich-Kloten 103.0 km
Monte Generoso 103.7 km
Evolène 104.6 km
Boltigen 105.8 km
Zollikofen 107.5 km
Rünenberg 107.9 km
Beznau 109.7 km
Hörnli 111.6 km
Milan Malpensa Airport 112.0 km
Leibstadt 114.7 km
Ebnat-Kappel 116.0 km
Sion Airport 118.1 km
Tänikon 119.0 km
Gstaad-Skiarea 120.4 km
Novara / Cameri 121.4 km
Möhlin 121.9 km
Tinizong-Rona 122.4 km
Grenchen 122.5 km
Wut�schingen-Ofteringen 122.7 km
Hallau 125.4 km
Mühleberg 125.7 km
Fey 126.0 km
Schaffhausen 127.7 km
Les Diablerets 128.5 km
Les Attelas 129.3 km
Piz Martegnas 133.2 km
Château-d'Œx 133.2 km
Säntis 135.9 km
Binningen 136.0 km
Chur-Ems 137.4 km
Valbella 137.5 km
Fribourg Posieux 137.6 km
Bad Ragaz Airport 139.2 km
Delémont 139.6 km
Salen-Reutenen 141.7 km
Aosta Valley Airport 142.8 km

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