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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 - Demyansk Απόσταση
Demyansk 0.0 km
YamskayaSloboda 58.4 km
Ostashkov 87.0 km
Staraya Russa 132.6 km
Toropets 144.0 km
Kholm 150.5 km
Arkazha 158.3 km
Borovichi 174.8 km
Κίρισι 176.2 km
Bely 177.0 km
Bologoye 177.8 km
Lyuban 211.4 km
Tikhvin 222.3 km
Krenitsy 232.5 km
Kosharovo 234.0 km
Velizh 239.6 km
Velikiye Luki 240.0 km
Σλίσελμπουργκ 270.9 km
Σμολένσκ 276.6 km
Dno 280.6 km
Staritsa 294.5 km
Yefimovsky 302.0 km
Pochinok 303.7 km
Siversky 306.0 km
Nikolaevskoe 309.4 km
Lodeynoye Pole 310.6 km
Vyazma 315.5 km
Olonets 317.4 km
Διεθνές Αεροδρόμιο Πούλκοβο 326.5 km
Βίτσεμπσκ 336.2 km
Spas-Demensk 347.0 km
Γκαγκάριν 347.3 km
Roslavl 350.7 km
Horki 359.4 km
Okhona 362.5 km
Όρσα 374.2 km
Vinnitsy-Kalekhovskaya 378.1 km
Maksatikha 380.6 km
Τβερ 386.6 km
Valaam 393.7 km
Puskinskie Gory 401.6 km
Kastsyukovichy 407.2 km
Zhukovka 409.5 km
Syanno 411.4 km
Babayevo 418.2 km
Opochka 426.9 km
Slawharad 429.6 km
Σορταβάλα 432.0 km
Πετροζαβόντσκ 436.1 km
Μογκιλιόφ 441.9 km
Shirki 447.7 km
Pskov 453.4 km
Ustyuzhna 455.1 km
Μπριάνσκ 457.8 km
Sukhinichi 458.8 km
Kingisepp 460.8 km
Polotsk 461.9 km
Klin 491.5 km
Parikkala Koitsanlahti 493.0 km
Lyepyel 496.0 km
Maloyaroslavets 508.2 km
Βίμποργκ 508.9 km
Novo-ierusalim 510.0 km
Νάρβα 511.6 km
Naro-Fominsk 515.0 km
Klichaw 527.9 km
Punkaharju Airport 529.4 km
Byerazino 531.7 km
Vytegra 540.4 km
Joutseno 542.6 km
Barysaw 548.2 km
Μπαμπρούισκ 564.3 km
Savonlinna 567.8 km
Λαππεενράντα 576.0 km
Λαππεενράντα 580.6 km
Pudozh 590.0 km
ZavodskiyKhutor 598.3 km
Μαργίνα Χόρκα 625.6 km