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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.


Stations météo à proximité - Viazma Distance
Viazma 11.5 km
Spas-Demensk 78.7 km
Gagarine 86.6 km
Staritsa 138.4 km
Soukhinitchi 154.2 km
Bely 161.9 km
Joukovka 165.5 km
Briansk 179.3 km
Roslavl 201.1 km
Kosharovo 217.8 km
Potchinok 220.2 km
Ostachkov 222.3 km
Tver 234.6 km
Maloïaroslavets 243.6 km
Troubtchevsk 248.6 km
Bologoïe 250.2 km
Smolensk 252.1 km
Naro-Fominsk 267.7 km
Orel 279.9 km
Novo-ierusalim 287.2 km
Kline 291.9 km
Maksatikha 295.2 km
ZavodskiyKhutor 298.3 km
Borovitchi 299.8 km
Kastsioukovitchy 302.5 km
Demiansk 305.8 km
Toropets 320.1 km
Vnoukovo (Aéroport international) 331.5 km
Okhona 341.1 km
Ponyri 343.8 km
YamskayaSloboda 346.2 km
Velij 349.1 km
Doubna 356.6 km
Shirki 363.2 km
Moscou 373.6 km
Koursk 375.0 km
Toula 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
Oustioujna 407.6 km
Kachine 413.7 km
Tikhvine 419.4 km
Babaïevo 423.4 km
Staraïa Roussa 423.9 km
Velikié Louki 424.0 km
Oboïan 427.1 km
Kachira 429.8 km
Orcha 434.2 km
Vitebsk 439.8 km
Pashkovo 440.1 km
Livny 443.9 km
Homiel 456.0 km
Arkazha 460.0 km
Iefremov 463.0 km
Kirichi 469.5 km
Mahiliow 485.7 km
Tchernihiv 487.1 km
Mishutino 490.6 km
Ouglitch 490.7 km
Bogoroditskoe-fenino 497.7 km
Liouban 517.1 km
Jlobine 521.2 km
Ielets 522.6 km
Rybinsk 552.6 km
Tcherepovets 552.9 km
Brahine 553.2 km
Chlisselbourg 575.9 km
Siverski 606.4 km
Poulkovo (Aéroport) 631.8 km