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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 - Merefa Distance
Kharkiv 30.2 km
Proletarskiy 93.5 km
Belgorod 96.7 km
Oboyan 128.2 km
Izium 151.9 km
Dnipro 162.0 km
Poltava 166.3 km
Kursk 176.0 km
Sumy 178.7 km
Bogoroditskoe-fenino 189.7 km
Zaporizhzhia 193.6 km
Ponyri 226.6 km
Valuyki 232.8 km
Oryol 280.6 km
Mariupol 290.9 km
Livny 291.2 km
Svitlovodsk 317.7 km
ZavodskiyKhutor 324.8 km
Lubny 336.2 km
Konotop 341.1 km
Kryvyi Rih Airport 353.8 km
Trubchevsk 357.0 km
Yeysk 365.3 km
Bryansk 366.2 km
Yelets 372.3 km
Yefremov 376.0 km
Voronezh 391.3 km
Taganrog 394.0 km
Voronezh 396.9 km
Kerch 398.9 km
Liski 399.7 km
Primorsko-Akhtarsk 410.3 km
Zhukovka 423.9 km
Kropyvnytskyi 443.2 km
Lipetsk 463.3 km
Kherson 484.3 km
Millerovo 490.4 km
Kosonogov 493.1 km
Pavelec 500.4 km
Boguchar 504.8 km
Anna 509.2 km
Roslavl 519.3 km
Vysokoye 530.5 km
Chornomorske 541.9 km
Krasnodar 546.1 km
Kastsyukovichy 548.7 km
Michurinsk 563.2 km
Ryazhsk 568.6 km
Tikhoretsk 569.2 km