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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.


Estaciones meteorológicas cercanas - Sumy Distancia
Sumy 0.0 km
Poltava 115.3 km
Proletarskiy 122.5 km
Konotop 167.1 km
Oboyan 186.4 km
Kursk 186.5 km
Trubchevsk 188.4 km
Járkov 199.2 km
Lubní 199.8 km
Dnipró 208.3 km
Bélgorod 214.9 km
Briansk 223.6 km
Ponyri 225.2 km
Svitlovodsk 229.1 km
Oriol 240.5 km
Zhukovka 267.3 km
Zaporiyia 281.5 km
Bogoroditskoe-fenino 300.1 km
Krivói Rog Aeropuerto 305.7 km
Sukhinichi 305.9 km
ZavodskiyKhutor 309.4 km
Izium 329.3 km
Spas-Demensk 335.7 km
Kropivnitski 349.8 km
Róslavl 350.8 km
Livny 356.2 km
Kastsyukovichy 371.2 km
Chernígov 384.7 km
Valuiki 386.4 km
Shirki 396.6 km
Pochinok 413.8 km
Borýspil 422.5 km
Myronivka 422.9 km
Yefrémov 435.8 km
Gómel 438.4 km
Tula 447.5 km
Jersón 455.4 km
Yelets 457.2 km
Mariúpol 459.6 km
Smolensk 463.9 km
Nicolaiev 466.9 km
Kiev 471.2 km
Slawharad 474.8 km
Pashkovo 478.0 km
Hostómel Aeropuerto 498.7 km
Brahin 499.9 km
Gorki 525.4 km
Kashira 526.9 km
Uman 530.9 km
Yeisk 540.3 km
Zhlobin 549.3 km
Liubashivka 565.0 km
Taganrog 572.6 km
Primorsko-Ajtarsk 580.0 km
Orsha 581.6 km
Maguilov 589.1 km
Odessa/Tsentralny 599.5 km