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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.


Stazioni meteo nelle vicinanze - Romny Distanza
Konotop 51.6 km
Lubny 86.2 km
Sumy 135.7 km
Svitlovods'k 161.2 km
Poltava 163.1 km
Trubčevsk 172.1 km
Brjansk 248.9 km
Kropyvnyc'kyj 252.3 km
Černihiv 253.6 km
Kryvyj Rih Aeroporto 254.7 km
Proletarskiy 257.9 km
Zhukovka 258.7 km
Dnipro 261.3 km
Kascjukovičy 286.7 km
Boryspil' 287.2 km
Myronivka 291.7 km
Shirki 295.0 km
Roslavl' 303.0 km
Kursk 315.9 km
Homel' 318.0 km
Obojan' 321.6 km
Charkiv 325.4 km
Kiev 335.6 km
Zaporižžja 337.8 km
Spas-Demensk 343.7 km
Orël 346.2 km
Ponyri 347.4 km
Belgorod 349.7 km
Počinok 359.3 km
Hostomel' Aeroporto 363.0 km
Brahin 369.6 km
Slaŭharad 371.5 km
Suchiniči 372.1 km
Mykolaïv 387.0 km
Cherson 398.2 km
Smolensk 403.4 km
Uman' 404.9 km
ZavodskiyKhutor 418.0 km
Vasilevičy 425.7 km
Žlobin 429.3 km
Horki 434.5 km
Bogoroditskoe-fenino 435.7 km
Liubashivka 449.0 km
Izjum 452.0 km
Mahilëŭ 482.3 km
Livny 486.0 km
Orša 486.3 km
Mazyr 489.1 km
Odessa/Tsentralny 506.1 km
Kličaŭ 526.7 km
Babrujsk 534.3 km
Mariupol' 556.9 km
Tula 560.0 km
Sjanno 567.4 km