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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 - Perejaslav Vzdálenost
Myronivka 62.0 km
Boryspil 67.6 km
Kyjev 116.2 km
Černihiv 136.5 km
Hostomel Letiště 149.7 km
Kropyvnyckyj 167.3 km
Lubny 174.5 km
Umaň 182.7 km
Bragin 214.0 km
Svitlovodsk 221.3 km
Konotop 224.4 km
Homel 230.6 km
Ljubašivka 248.1 km
Kryvyj Rih Letiště 272.0 km
Vasilevičy 276.7 km
Shirki 282.0 km
Mykolajiv 288.2 km
Žytomyr 302.9 km
Žlobin 313.9 km
Mazyr 315.6 km
Kascjukovičy 319.8 km
Vinnycja 326.9 km
Slaŭharad 327.5 km
Cherson 345.6 km
Poltava 347.6 km
Trubčevsk 350.6 km
Odessa/Tsentralny 353.0 km
Sumy 365.8 km
Roslavl 397.1 km
Babrujsk 398.8 km
Kišiněv 400.6 km
Mogilev 403.6 km
Kličaŭ 406.5 km
Horki 408.9 km
Kišiněv Letiště 410.9 km
Dnipro 414.1 km
Žukovka 415.0 km
Pochinok 426.7 km
Mohyliv-Podilskyj 436.5 km
Brjansk 437.4 km
Orša 439.6 km
Smolensk 450.1 km
Žytkavičy 450.6 km
Berazino 454.5 km
Záporoží 475.7 km
Proletarskiy 485.5 km
Šepetivka 491.8 km
Sjanno 496.1 km
Marjina Horka 496.1 km
Spas-Demensk 498.7 km
Jasy 508.4 km
Ștefăneşti 517.7 km
Bârnova 521.4 km
Sluck 521.5 km
Barysaŭ 522.7 km
Vaslui 530.5 km
Negreşti 544.0 km
Lepel 557.1 km
Bârlad 561.6 km
Letiště Minsk 567.3 km
Suchiniči 574.5 km
Adjud 611.1 km
Dokšycy 622.6 km

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