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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 - Grenoble Distance
Grenonble Lvd Airport 15.3 km
Alpes 47.5 km
Chambery/Aix Bains 53.6 km
Lyon- Saint-Exupéry Airport 93.2 km
Annecy Airport 93.3 km
Ambérieu-en-Bugey 99.0 km
Lyon- Bron Airport 105.5 km
Briançon 108.0 km
Embrun 110.7 km
Bourg-Saint-Maurice 125.8 km
Geneva Airport 126.4 km
Château-Arnoux-Saint-Auban Airport 127.2 km
Montélimar 128.1 km
Carpentras 142.7 km
La Dôle 143.9 km
Nyon (Changins) 146.3 km
Orange 152.4 km
Mâcon 160.4 km
St Etienne/Boutheon 163.1 km
Bière 164.1 km
Aubenas/Vals-Lanas 166.7 km
Avignon/Coumont 168.0 km
Great St Bernard 178.8 km
Pully 181.2 km
Evionnaz 183.0 km
Aigle 184.5 km
Le Bouveret 184.5 km
Salon-de-Provence 188.4 km
Aosta Valley Airport 191.8 km
Villars-Tiercelin 193.8 km
Mathod 198.6 km
Oron 199.4 km
Les Attelas 200.3 km
Marseille Provence Airport 201.3 km
Fey 205.0 km
Istres 205.1 km
Nîmes/Courbessac 206.9 km
La Fretaz 206.9 km
Tavaux 207.7 km
Les Diablerets 208.3 km
Dole Tavaux 208.6 km
Moléson 209.1 km
Turin-Aeritalia Airport 210.3 km
Le Luc 212.6 km
Sion Airport 213.0 km
Château-d'Œx 213.7 km
Nîmes/Garons 214.4 km
Torino/Caselle 215.2 km
Le Puy 217.4 km
La Brévine 222.7 km
Cuneo Intl. Airport 223.4 km
Evolène 224.4 km
Turin / Bric della Croce 225.1 km
Payerne 226.0 km
Cannes 228.4 km
Crans-Montana 230.0 km
Besançon 230.7 km
Saint-Yan 233.5 km
Saint-Mandrier-sur-Mer 233.8 km
Neuchâtel 234.1 km
Fribourg Posieux 234.6 km
Hyeres/Le Palyvestr 235.7 km
Pian Rosa 236.7 km
Nice 237.3 km
Flughafen Dijon-Bourgogne 241.4 km
La Chaux-de-Fonds 241.9 km
Gstaad-Skiarea 244.5 km
Boltigen 244.6 km
Zermatt 245.2 km
Gornergrat 246.7 km
Monte Rosa-Plattje 248.7 km
Chaumont 249.7 km
Mondovì 249.9 km
Adelboden 252.2 km
Monte Malanotte 253.8 km
Cressier 254.7 km
Grächen 261.2 km
Mende 261.9 km
Chasseral 262.9 km
Mühleberg 263.4 km
Montpellier Airport 263.5 km
Mont Aigoual 265.3 km
Visp 267.1 km
Wimmis 270.7 km
Blatten 271.5 km
Bern-Belp 275.9 km
Zollikofen 278.9 km
Vichy/Charmeil 280.2 km
Fahy 284.3 km
Grenchen 290.6 km
Interlaken 290.8 km
Clermont/Aulnat 291.6 km
Jungfraujoch 294.1 km
Dorans 294.2 km
Albenga 296.2 km
Luxeuil-les-Bains 297.1 km
Langres Airport 297.8 km
Eggishorn 298.1 km
Koppigen 300.0 km
Sète 300.6 km