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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 - Tosno Distance
Shlisselburg 38.3 km
Lyuban 41.7 km
Pulkovo Airport 77.8 km
Siversky 87.5 km
Arkazha 105.9 km
Kirishi 126.5 km
Staraya Russa 153.3 km
Nikolaevskoe 154.7 km
Krenitsy 166.6 km
Valaam 173.6 km
Dno 197.1 km
Sortavala 208.2 km
YamskayaSloboda 218.7 km
Kholm 231.1 km
Parikkala Koitsanlahti 242.7 km
Demyansk 250.6 km
Kingisepp 256.6 km
Tohmajärvi 264.5 km
Vyborg 266.2 km
Olonets 268.5 km
Punkaharju Airport 279.5 km
Suoyarvi 292.7 km
Tikhvin 295.1 km
Joutseno 297.4 km
Toropets 303.0 km
Ilomantsi Mekrijarvi 307.2 km
Velikiye Luki 307.7 km
Narva 310.3 km
Lodeynoye Pole 314.8 km
Savonlinna 317.3 km
Liperi Tuiskavanluoto 318.9 km
Pskov 327.0 km
Puskinskie Gory 330.6 km
Joensuu 331.6 km
Lappeenranta 333.3 km
Ostashkov 336.0 km
Lappeenranta 338.5 km
Ilomantsi Pötsönvaara 343.2 km
Gdov 350.4 km
Borovichi 350.5 km
Rantasalmi Rukkasluoto 355.8 km
Opochka 366.0 km
Virolahti 371.6 km
Lieksa 374.0 km
Velizh 376.5 km
Bologoye 383.4 km
Jõhvi 390.4 km
Juuka 400.2 km
Juva 405.2 km
Reboly 409.4 km
Bely 417.4 km
Kotka Haapasaari 419.8 km
Yefimovsky 423.0 km
Vitebsk 428.1 km
Petrozavodsk 430.8 km
Vinnitsy-Kalekhovskaya 444.0 km
Mustvee 444.5 km
Rankki 445.0 km
Rautavaara Yla-luosta 445.9 km
Padany 448.5 km
Kosharovo 449.1 km
Kondopoga 451.0 km
Kuopio Ritoniemi 458.7 km
Valtimo 459.4 km
Polotsk 460.2 km
Mikkeli 460.7 km
Utti 460.7 km
Võru 462.7 km
Anjala 468.8 km
Alūksne 477.2 km
Tartu 479.6 km
Kuopio 481.8 km
Kunda (Port) 484.2 km
Kuopio 487.4 km
Verkhnyadzvinsk 488.7 km
Rēzekne 499.7 km
Pernaja Orrengrund 500.3 km
Medvezhyegorsk 504.1 km
Jõgeva 507.2 km
Väike-Maarja Parish 521.1 km
Gulbene 521.9 km
Maaninka 530.6 km
Staritsa 531.7 km
Segezha 546.0 km
Sharkawshchyna 558.9 km
Heinola 563.5 km
Vyazma 566.1 km
Valga 568.6 km
Leivonmäki 581.3 km
Madona 583.8 km
Vierema Kaarakkala 584.7 km
Vaasa Klemettila 586.3 km
Daugavpils 589.2 km
Vesanto 601.0 km
Dūkštas 644.6 km
Łyntupy 674.3 km
Švenčionys 680.6 km