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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 - Vassfjellet Distance
Trondheim 24.5 km
Soknedal 35.2 km
Kotsoy 41.7 km
Thamshavn 50.7 km
Frosta 55.8 km
Kvithammer 69.6 km
Trondheim Airport 74.4 km
Selbu 78.8 km
Åfjord 79.0 km
Ørland 92.2 km
Oppdal/Seter 100.2 km
Tynset-hansmoen 117.6 km
Buholmråsa Lighthouse 127.0 km
Folldal 127.6 km
Hitra 135.5 km
Røros Airport 137.8 km
Tagdalen 138.3 km
Hjerkinn 140.9 km
Røros Airport 141.9 km
Halten Lighthouse 141.9 km
Steinkjer 153.4 km
Meråker -Egge 159.9 km
Fokstua Ii 168.1 km
Nordøyan Lighthouse 172.0 km
Venabu 176.5 km
Solendet 180.0 km
Dombås 184.6 km
Namsos Airport 195.2 km
Kvitfjell 196.5 km
Fåvang 197.0 km
Rorvik / Ryum 197.3 km
Storlien 202.9 km
Blahammaren 209.0 km
Skåbu 213.4 km
Sula 214.3 km
Evenstad 217.7 km
Sylan 221.9 km
Lillehammer-Saetherengen 237.1 km
Drevsjø 245.7 km
Vest-torpa Ii 255.1 km
Bjorli 258.0 km
Kjobli I Snasa 261.4 km
Rena-Haugedalen 261.5 km
Veiholmen 263.7 km
Beitostølen 267.7 km
Fagernes Leirin 270.8 km
Gartland 270.8 km
Loken I Volbu 271.1 km
Kristiansund / Kvernberget 275.0 km
Juvvasshoe 275.4 km
Fagernes 275.6 km
Kise Pa Hedmark 276.8 km
Tännäs 277.5 km
Hamar Airport 279.5 km
Hamar 282.2 km
Apelsvoll 286.1 km
Marstein 286.9 km
Mannen 294.8 km
Trysil Vegstasjon 305.8 km
Brata-slettom 306.1 km
Sognefjellet 316.2 km
Vega-Vallsjo 319.0 km
Idre Fjall 320.6 km
Nesbyen-todokk 321.7 km
Bronnoysund / Bronnoy 322.6 km
Grotli Iii 323.3 km
Gulsvik 323.8 km
Hemsedal Ii 324.5 km
Namsskogan 326.8 km
Hollekolten 328.1 km
Filefjell 333.4 km
Hønefoss 337.8 km
Tafjord 339.9 km
Molde / Aro 342.1 km
Oslo Airport 344.1 km
Flisa Ii 345.3 km
Hakadal 347.8 km
Bjornholt 352.8 km
Tryvasshogda 359.8 km
Korsvattnet 361.8 km
Blindern 365.0 km
Tjøtta 367.9 km
Kjeller Airport 368.0 km
Asker 372.0 km
Veggli 374.4 km
Geilo-oldebraten 379.8 km
Sandnessjøen / Stokka 382.2 km
Drammen Berskog 383.6 km
Kongsvinger 384.4 km
Kongsberg 387.9 km
Dravagen 389.9 km
Lærdal 390.8 km
Norne 391.5 km
Aurskog 391.7 km
Ås 396.5 km
Sande-galleberg 397.8 km
Bortnan 398.9 km
Rekdal 400.1 km
Majavatn 400.1 km
Nordli-Holand 402.1 km

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