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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.


Estações Meteorológicas Próximas - Viazma Distância
Viazma 11.5 km
Spas-Demensk 78.7 km
Gagarin 86.6 km
Staritsa 138.4 km
Sukhinichi 154.2 km
Bely 161.9 km
Zhukovka 165.5 km
Briansk 179.3 km
Roslavl 201.1 km
Kosharovo 217.8 km
Pochinok 220.2 km
Ostashkov 222.3 km
Tver 234.6 km
Maloiaroslavets 243.6 km
Trubchevsk 248.6 km
Bologoye 250.2 km
Smolensk 252.1 km
Naro-Fominsk 267.7 km
Oriol 279.9 km
Novo-ierusalim 287.2 km
Klin 291.9 km
Maksatikha 295.2 km
ZavodskiyKhutor 298.3 km
Borovichí 299.8 km
Kastsyukovichy 302.5 km
Demyansk 305.8 km
Torópets 320.1 km
Aeroporto Internacional Vnukovo 331.5 km
Okhona 341.1 km
Ponyri 343.8 km
YamskayaSloboda 346.2 km
Velizh 349.1 km
Dubna 356.6 km
Shirki 363.2 km
Moscovo 373.6 km
Kursk 375.0 km
Tula 379.3 km
Horki 382.9 km
Konotop 387.0 km
Kholm 392.0 km
Yefimovsky 397.0 km
Slawharad 401.9 km
Novoye Roshchino 403.4 km
Ustyuzhna 407.6 km
Kashin 413.7 km
Tikhvin 419.4 km
Babaievo 423.4 km
Staraya Russa 423.9 km
Velikiye Luki 424.0 km
Oboyan 427.1 km
Kashira 429.8 km
Orsha 434.2 km
Vitebsk 439.8 km
Pashkovo 440.1 km
Livny 443.9 km
Gomel 456.0 km
Arkazha 460.0 km
Iefremov 463.0 km
Kirishi 469.5 km
Mahilou 485.7 km
Chernigov 487.1 km
Mishutino 490.6 km
Uglitch 490.7 km
Bogoroditskoe-fenino 497.7 km
Lyuban 517.1 km
Jlóbin 521.2 km
Ielets 522.6 km
Rybinsk 552.6 km
Tcherepovets 552.9 km
Brahin 553.2 km
Shlisselburg 575.9 km
Siversky 606.4 km
Aeroporto de Pulkovo 631.8 km