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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.


Stations météo à proximité - Brønnøysund Distance
Tjøtta 45.9 km
Vega-Vallsjo 47.5 km
Sandnessjøen/Stokka 61.1 km
Gartland 103.5 km
Namsskogan 105.4 km
Solvaer Iii 107.6 km
Mosjøen Kjaerstad 116.5 km
Laksfors 120.6 km
Namsos Aéroport 129.8 km
Majavatn 132.1 km
Rorvik/Ryum 137.4 km
Phare de Myken 144.4 km
Kjobli I Snasa 145.1 km
Seljelia 168.7 km
Steinkjer 179.0 km
Nordøyan Lighthouse 199.3 km
Nordli-Holand 200.5 km
Skamdal 204.7 km
Susendal-Bjormo 222.5 km
Reipå 222.7 km
Røst Aéroport 223.5 km
Korsvattnet 227.7 km
Phare de Buholmråsa 228.5 km
Meråker -Egge 230.3 km
Storlien 237.9 km
Værøy 244.2 km
Gäddede 246.3 km
Blahammaren 248.1 km
Mo i Rana 251.6 km
Stekenjokk 259.1 km
Trondheim Værnes (Aéroport) 260.7 km
Kvithammer 262.2 km
Sylarna 263.0 km
Frosta 267.9 km
Åfjord 276.5 km
Storforshei 276.5 km
Selbu 279.1 km
Helligvær 281.2 km
Trondheim 298.1 km
Solendet 306.7 km
Bodø 317.1 km
Gielas 317.9 km
Hemavan-Gierevarto 319.1 km
Hemavan Aéroport 321.2 km
Hjartasen 324.5 km
Föllinge 328.1 km
Kotsoy 328.4 km
Røros Aéroport 328.7 km
Røros Aéroport 329.3 km
Leknes 330.2 km
Tännäs 331.7 km
Halten Phare 344.3 km
Bortnan 346.2 km
Ørland 349.5 km
Thamshavn 353.1 km
Östersund 353.4 km
Soknedal 356.1 km
Saltdal 379.8 km
Tynset-hansmoen 386.0 km
Klövsjö 386.9 km
Drevsjø 389.7 km
Hallhaxasen 392.6 km
Gubbhogen 394.9 km
Idre Fjall 395.7 km
Dravagen 397.1 km
Phare de Skrova 397.2 km
Hitra 405.9 km
Svolvær/Helle 406.4 km
Setsa 407.6 km
Bo I Vesteralen 418.5 km
Oppdal/Seter 422.8 km
Hunge 433.8 km
Tagdalen 438.3 km
Folldal 440.6 km
Sveg 443.5 km
Mierkenis 453.6 km
Sula 453.6 km
Trysil Vegstasjon 453.8 km
Evenstad 458.4 km
Stokmarknes 459.2 km
Hjerkinn 463.2 km
Norne 464.0 km
Hoting 471.4 km
Rena-Haugedalen 477.0 km
Venabu 477.9 km
Fokstua II 490.7 km
Fåvang 493.0 km
Kvitfjell 495.0 km
Sortland 499.0 km
Älvdalen 499.8 km
Krangede 505.8 km
Dombås 507.0 km
Hamra 514.8 km
Lillehammer-saetherengen 515.2 km
Skomvaer Fyr 519.7 km
Vilhelmina 524.5 km
Vilhelmina 524.5 km
Skåbu 532.3 km
Torpshammar 554.4 km