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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 - Viljandi Απόσταση
Viljandi 0.0 km
Türi 49.6 km
Rūjiena 54.5 km
Βάλγκα 75.8 km
Γιόγκεβα 96.3 km
Väike-Maarja Parish 104.2 km
Priekuļi 109.5 km
Kuusiku 113.9 km
Pärnu Airport 125.9 km
Τάρτου 126.3 km
Zosēni 128.1 km
Zosēni 128.1 km
Ainaži 146.3 km
Τάλιν 152.7 km
Kunda (Port) 156.2 km
Mustvee 158.5 km
Kallbadagrund 162.3 km
Madona 165.7 km
Βύρου 166.3 km
Skulte 170.4 km
Gulbene 175.0 km
Skrīveri 181.2 km
Porvoo Emasalo 184.1 km
Kihnu 184.1 km
Άλουκσνε 184.7 km
Töölö 188.3 km
Zīlāni 188.5 km
Porvoo Kilpilahti 194.6 km
Vanhakaupunki 196.1 km
Pakri 202.1 km
Porvoo 203.3 km
Nigula 207.2 km
Διεθνές Αεροδρόμιο του Ελσίνκι 208.6 km
Kirkkonummi Makiluoto 209.7 km
Pernaja Orrengrund 212.3 km
Jõhvi 222.0 km
Ρίγα Αεροδρόμιο 223.1 km
Mantsala Hirvihaara 231.8 km
Virtsu 234.6 km
Bagaskar 236.9 km
Μπίρζαϊ 237.2 km
Nurmijärvi 240.2 km
Rajamäki 241.4 km
Vihti 246.5 km
Rankki 251.0 km
Gdov 251.3 km
Μπάουσκα 252.4 km
Lohja 256.5 km
Kotka Haapasaari 260.0 km
Ρέζεκνε 260.4 km
Λάχτι 261.0 km
Ρουχνού 267.2 km
Γιέλγκαβα 268.7 km
Anjala 268.9 km
Tammisaari Jussaro 269.4 km
Ντάουγκαβπιλς 270.2 km
Lammi 277.5 km
Ουτενά 286.2 km
Heinola 288.2 km
Pulkkilanharju Lighthouse 291.2 km
Χαμεενλίννα 292.8 km
Utti 293.2 km
Mērsrags 296.0 km
Dūkštas 296.1 km
Πανεβεζίς 296.7 km
Νάρβα 297.2 km
Hanko Tvarminne 301.6 km
Kiikala Airport 303.6 km
Dobele 309.4 km
Hattula 311.5 km
Kärdla Airport 314.7 km
Virolahti 315.3 km
Pskov 316.5 km
Ουκμεργκέ 326.2 km
Russarö 327.4 km
Švenčionys 330.1 km
Hanko 332.9 km
Luhanka Judinsalo 335.3 km
Kolka 339.8 km
Jokioinen 340.9 km
Łyntupy 341.3 km
Salo 343.6 km
Κουρεσάαρε Αεροδρόμιο 344.3 km
Kingisepp 348.3 km
Σιαουλιάι Αεροδρόμιο 350.7 km
Σιαουλιάι 352.3 km
Leivonmäki 356.2 km
Stende 360.1 km
Halli 362.0 km
Halli Airport 362.5 km
Sharkawshchyna 363.6 km
Βερχνιαντζβίνσκ 364.2 km
Τάμπερε 375.2 km
Mikkeli 376.3 km
Βίλνιους Αεροδρόμιο 379.7 km
Juupajoki 380.3 km
Τάμπερε 381.7 km
Kaunas Airport 382.9 km
Opochka 383.5 km
Saldus 385.2 km

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