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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 - Tartu Distance
Tartu 0.0 km
Võru 55.2 km
Jõgeva 56.9 km
Mustvee 61.2 km
Alūksne 92.3 km
Valga 93.4 km
Väike-Maarja Parish 100.0 km
Gulbene 116.0 km
Kunda (Port) 122.8 km
Jõhvi 126.0 km
Viljandi 126.3 km
Gdov 129.7 km
Zosēni 148.3 km
Zosēni 148.3 km
Madona 154.5 km
Türi 155.4 km
Rūjiena 157.1 km
Priekuļi 183.8 km
Rēzekne 185.0 km
Narva 186.6 km
Pskov 191.9 km
Pernaja Orrengrund 198.3 km
Zīlāni 199.4 km
Kotka Haapasaari 203.1 km
Rankki 206.9 km
Kallbadagrund 210.2 km
Porvoo Emasalo 225.9 km
Kuusiku 232.5 km
Kingisepp 232.9 km
Daugavpils 235.4 km
Anjala 238.3 km
Porvoo Kilpilahti 239.7 km
Porvoo 243.6 km
Skrīveri 243.8 km
Virolahti 244.0 km
Pärnu Airport 252.3 km
Utti 259.2 km
Tallinn 262.9 km
Töölö 266.4 km
Ainaži 267.0 km
Opochka 270.3 km
Puskinskie Gory 272.3 km
Vanhakaupunki 273.8 km
Skulte 277.2 km
Verkhnyadzvinsk 280.4 km
Dūkštas 281.0 km
Helsinki Airport 281.9 km
Mantsala Hirvihaara 289.3 km
Lahti 293.2 km
Heinola 299.0 km
Sharkawshchyna 302.0 km
Biržai 303.7 km
Utena 306.0 km
Kihnu 308.8 km
Kirkkonummi Makiluoto 311.3 km
Lappeenranta 313.6 km
Rajamäki 314.9 km
Lappeenranta 318.0 km
Pakri 319.2 km
Nurmijärvi 320.4 km
Švenčionys 321.8 km
Pulkkilanharju Lighthouse 325.7 km
Vyborg 326.0 km
Łyntupy 327.3 km
Riga Airport 327.4 km
Nigula 331.4 km
Lammi 334.1 km
Vihti 335.9 km
Joutseno 338.3 km
Mikkeli 340.1 km
Bauska 341.3 km
Nikolaevskoe 342.4 km
Bagaskar 344.1 km
Dokshytsy 356.6 km
Lohja 357.0 km
Polotsk 359.3 km
Virtsu 360.9 km
Dno 361.2 km
Leivonmäki 363.8 km
Panevėžys 366.1 km
Luhanka Judinsalo 366.7 km
Hämeenlinna 368.3 km
Jelgava 371.4 km
Ukmergė 375.3 km
Juva 377.7 km
Tammisaari Jussaro 383.7 km
Hattula 389.5 km
Ruhnu 390.3 km
Siversky 392.2 km
Lyepyel 401.6 km
Kiikala Airport 406.6 km
Vilnius Airport 409.6 km
Mērsrags 414.6 km
Halli Airport 415.8 km
Halli 415.9 km
Dobele 416.1 km
Hanko Tvarminne 418.0 km
Rantasalmi Rukkasluoto 423.3 km
Jyväskylä 425.8 km
Pulkovo Airport 429.2 km

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