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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 - Tagdalen Distance
Tagdalen 0.9 km
Hitra 51.8 km
Oppdal/Seter 83.1 km
Thamshavn 91.9 km
Ørland 92.9 km
Fokstua Ii 105.4 km
Hjerkinn 105.4 km
Dombås 107.6 km
Sula 110.2 km
Soknedal 124.2 km
Halten Lighthouse 128.2 km
Bjorli 130.0 km
Veiholmen 135.3 km
Kristiansund / Kvernberget 137.5 km
Folldal 144.6 km
Marstein 151.1 km
Mannen 158.5 km
Trondheim 159.4 km
Åfjord 162.7 km
Kotsoy 166.5 km
Juvvasshoe 169.6 km
Skåbu 171.0 km
Brata-slettom 181.9 km
Frosta 189.8 km
Venabu 193.1 km
Grotli Iii 193.3 km
Beitostølen 198.5 km
Sognefjellet 202.2 km
Molde / Aro 203.1 km
Tynset-hansmoen 204.2 km
Tafjord 204.5 km
Kvithammer 207.4 km
Kvitfjell 210.3 km
Loken I Volbu 211.9 km
Trondheim Airport 212.8 km
Buholmråsa Lighthouse 213.7 km
Fåvang 214.8 km
Selbu 216.9 km
Fagernes Leirin 226.8 km
Fagernes 227.9 km
Filefjell 231.8 km
Hemsedal Ii 247.2 km
Hollekolten 247.4 km
Nordøyan Lighthouse 253.2 km
Vest-torpa Ii 256.0 km
Røros Airport 259.3 km
Rekdal 261.1 km
Røros Airport 263.3 km
Lillehammer-Saetherengen 266.0 km
Nesbyen-todokk 273.0 km
Lærdal 276.2 km
Ona Ii 282.7 km
Steinkjer 285.9 km
Evenstad 286.3 km
Geilo-oldebraten 293.8 km
Meråker -Egge 298.8 km
Gulsvik 299.0 km
Sogndal / Haukasen 300.3 km
Rorvik / Ryum 303.3 km
Stryn 306.0 km
Solendet 308.8 km
Fjaerland Bremuseet 312.8 km
Kise Pa Hedmark 315.9 km
Finse 320.2 km
Namsos Airport 320.2 km
Skalmen Lighthouse 324.3 km
Apelsvoll 326.5 km
Midtstova 330.5 km
Veggli 330.6 km
Hamar Airport 330.9 km
Alesund / Vigra 332.7 km
Hamar 334.5 km
Rena-Haugedalen 335.8 km
Vangsnes 339.9 km
Storlien 341.1 km
Hønefoss 342.7 km
Norne 344.4 km
Blahammaren 346.5 km
Ørsta- Volda Airport 347.4 km
Mjølfjell 351.0 km
Fet I Eidfjord 352.5 km
Sandane 354.8 km
Drevsjø 356.4 km
Sylan 358.1 km
Dyranut Automated 361.7 km
Mosstrand Ii 367.4 km
Bjornholt 375.1 km
Hakadal 376.7 km
Drammen Berskog 380.5 km
Tryvasshogda 380.6 km
Kongsberg Brannstasjon 381.6 km
Asker 382.1 km
Notodden 383.2 km
Oslo Airport 383.9 km
Kongsberg 385.5 km
Blindern 387.3 km
Voss 389.5 km
Vossevangen 397.4 km
Vossevangen 397.4 km
Bringeland Lufthavn 397.6 km