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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.


Poblíž povětrnostní stanice - Narva Vzdálenost
Kingisepp 53.8 km
Gdov 69.8 km
Jõhvi 80.1 km
Virolahti 124.4 km
Kotka Haapasaari 137.7 km
Mustvee 138.8 km
Vyborg 148.9 km
Pskov 158.3 km
Rankki 161.6 km
Lappeenranta 164.7 km
Lappeenranta 166.2 km
Joutseno 171.2 km
Kunda (Port) 175.0 km
Tartu 186.6 km
Võru 193.5 km
Anjala 196.0 km
Utti 200.7 km
Jõgeva 201.1 km
Nikolaevskoe 202.9 km
Pernaja Orrengrund 205.8 km
Väike-Maarja Parish 210.9 km
Siversky 224.5 km
Alūksne 225.7 km
Puskinskie Gory 245.9 km
Juva 249.5 km
Letiště Pulkovo 249.9 km
Mikkeli 250.2 km
Parikkala Koitsanlahti 251.9 km
Dno 253.8 km
Opočka 267.9 km
Savonlinna 268.3 km
Rantasalmi Rukkasluoto 268.8 km
Gulbene 270.2 km
Punkaharju (Letiště) 272.6 km
Valga 280.0 km
Kallbadagrund 286.8 km
Porvoo Emasalo 288.6 km
Heinola 293.2 km
Rēzekne 294.9 km
Porvoo 297.2 km
Viljandi 297.2 km
Porvoo Kilpilahti 300.6 km
Türi 305.5 km
Lahti 318.8 km
Šlisselburg 325.6 km
Madona 326.1 km
Zosēni 331.0 km
Zosēni 331.0 km
Leivonmäki 335.5 km
Kuopio Ritoniemi 338.1 km
Rūjiena 339.1 km
Pulkkilanharju Lighthouse 345.1 km
Ljubaň 346.9 km
Mantsala Hirvihaara 348.8 km
Verchňadzvinsk 349.3 km
Kuopio 351.1 km
Liperi Tuiskavanluoto 354.7 km
Töölö 357.3 km
Arkazha 358.4 km
Kuopio 360.6 km
Joensuu 361.5 km
Vanhakaupunki 362.2 km
Letiště Helsinky-Vantaa 363.2 km
Valaam 363.9 km
Sortavala 368.3 km
Priekuļi 370.4 km
Luhanka Judinsalo 372.0 km
Tohmajärvi 373.1 km
Zīlāni 373.6 km
Daugavpils 376.0 km
Kuusiku 378.7 km
Staraja Russa 379.4 km
Lammi 381.6 km
Maaninka 382.8 km
Polock 388.5 km
Rajamäki 388.7 km
Tallinn 393.3 km
Rautavaara Yla-luosta 397.5 km
Juuka 397.5 km
Sharkawshchyna 401.1 km
Nurmijärvi 402.0 km
Vesanto 402.8 km
Cholm 403.1 km
Vaasa Klemettila 403.5 km
Velikije Luki 403.8 km
Jyväskylä 405.0 km
Pärnu (Letiště) 416.8 km
Kirkkonummi Makiluoto 423.0 km
Vihti 427.0 km
Valtimo 428.2 km
Skrīveri 429.1 km
Dūkštas 430.5 km
Hämeenlinna 435.2 km
Kiriši 436.1 km
Lieksa 440.5 km
Ainaži 443.5 km
Halli (Letiště) 443.6 km
Halli 444.4 km
Viitasaari 445.7 km

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