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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 - Viitasaari Απόσταση
Viitasaari 0.0 km
Vesanto 60.8 km
Pyhajarvi Ol Ojakyla 67.8 km
Γυβάσκυλα 71.5 km
Vaasa Klemettila 87.2 km
Χάαπαβεσι 117.1 km
Leivonmäki 123.2 km
Luhanka Judinsalo 144.1 km
Vaala Pelso 156.5 km
Ύλιβιεσκα Αεροδρόμιο 159.8 km
Maaninka 161.1 km
Halsua Kanala Purola 162.5 km
Vierema Kaarakkala 168.6 km
Halli Airport 169.9 km
Halli 171.7 km
Alajärvi 178.7 km
Ruukki 182.6 km
Pulkkilanharju Lighthouse 186.4 km
Heinola 189.6 km
Ähtäri 191.9 km
Oulu Airport 193.9 km
Pellonpää 194.1 km
Κουόπιο 197.6 km
Vihreäsaari 200.0 km
Toholampi 203.6 km
Mikkeli 203.9 km
Λάχτι 213.8 km
Κουόπιο 215.3 km
Juupajoki 215.6 km
Lammi 223.8 km
Ράαχε 227.6 km
Kuopio Ritoniemi 228.7 km
Χάιλουοτο 233.3 km
Kajaani 234.8 km
Marjaniem 243.9 km
Utti 248.0 km
Juva 253.9 km
Mantsala Hirvihaara 257.8 km
Χαμεενλίννα 259.8 km
Anjala 260.3 km
Πουντασγιάρβι 261.4 km
Hattula 262.3 km
Nahkiainen 268.2 km
Virrat Aijanneva 269.8 km
Porvoo 271.5 km
Rajamäki 276.9 km
Porvoo Kilpilahti 281.0 km
Ulkokalla 282.2 km
Τάμπερε 287.1 km
Pernaja Orrengrund 288.8 km
Porvoo Emasalo 290.3 km
Nurmijärvi 292.3 km
Sotkamo 293.4 km
Διεθνές Αεροδρόμιο του Ελσίνκι 295.7 km
Rankki 297.2 km
Kemi Ajos 301.0 km
Kemi I 304.4 km
Τάμπερε 305.0 km
Kemi 307.1 km
Vanhakaupunki 309.9 km
Kronoby 310.0 km
Kallbadagrund 312.3 km
Rautavaara Yla-luosta 312.5 km
Kauhava 314.3 km
Vihti 314.4 km
Kotka Haapasaari 315.0 km
Töölö 315.5 km
Rantasalmi Rukkasluoto 316.8 km
Virolahti 324.0 km
Λαππεενράντα 324.9 km
Λαππεενράντα 329.1 km
Valtimo 334.8 km
Tornio 336.4 km
Haparanda 338.5 km
Seinäjoki 339.9 km
Ροβανιέμι 342.7 km
Kokkola Tankar 347.7 km
Ροβανιέμι 348.1 km
Jokioinen 349.2 km
Rovaniemen mlk Apukka 350.3 km
Lohja 350.8 km
Savonlinna 360.7 km
Kirkkonummi Makiluoto 360.8 km
Joutseno 361.9 km
Ταϊβαλκόσκι 362.0 km
Kiikala Airport 362.0 km
Kunda (Port) 364.2 km
Suomussalmi Pesio 369.5 km
Miekojärvi 372.8 km
Juuka 375.2 km
Ylistaro 376.4 km
Pietarsaari Kallan 377.2 km
Bagaskar 378.8 km
Kemijärvi Airport 389.4 km
Βίμποργκ 395.8 km
Väike-Maarja Parish 397.1 km
Niinisalo 398.7 km
Τάλιν 399.0 km
Kankaanpää 399.3 km
Punkaharju Airport 404.1 km