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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 - Grójec Vzdálenost
Varšava - Okecie 34.8 km
Radom Letiště 61.5 km
Letiště Varšava-Modlin 63.0 km
Kozienice 81.6 km
Kielce 109.1 km
Sulejów 122.9 km
Mława 142.4 km
Płock 147.6 km
Ostrolenka 149.8 km
Sandoměř 152.3 km
Siedlce 159.5 km
Lodž 163.9 km
Lotnisko Lublin-Radawiec 182.1 km
Tarnów 189.7 km
Olštýn 205.9 km
Lublin (Letiště) 215.2 km
Mikołajki 215.9 km
Krakov Letiště -Balice 219.5 km
Letiště Řešov-Jasionka 224.1 km
Čenstochová 225.4 km
Nowy Sącz 232.2 km
Kętrzyn 236.8 km
Krosno 245.3 km
Koło 248.3 km
Wieluń 264.5 km
Katowice-Pyrzowice 265.1 km
Toruň 283.6 km
Zakopané 285.1 km
Lomnický štít 285.6 km
Zamość 286.3 km
Bělostok 286.7 km
Tisinec 286.8 km
Elbląg 289.7 km
Kasprov vrch 290.1 km
Liesek 290.8 km
Lesko 296.8 km
Prešov 297.1 km
Štrbské Pleso 298.1 km
Poprad 298.1 km
Włodawa 298.5 km
Bílsko-Bělá 298.7 km
Přemyšl 299.4 km
Švábovce 299.8 km
Kaliningrad 300.6 km
Terespol 306.9 km
Kališ 309.9 km
Brest 314.8 km
Kojsovska Hola 319.1 km
Telgárt 321.9 km
Kamenica nad Cirochou 327.1 km
Suwałki 330.7 km
Chopok 331.0 km
Košice 333.0 km
Żuławki 337.4 km
Milhostov 344.0 km
Opolí 347.2 km
Bydhošť 349.1 km
Ratiboř 351.8 km
Jósvafő 352.5 km
Lysá hora 361.2 km
Užhorod 367.7 km
Hel 368.0 km
Šilutė 369.3 km
Zilina Hricov 371.3 km
Žilina Letiště 371.7 km
Letiště Lecha Wałęsy Gdaňsk 376.2 km
Ostrava 381.3 km
Sliač 385.4 km
Záhony 385.5 km
Lučenec Letiště 387.5 km
Marijampolė 391.0 km
Miskolc 391.1 km
Grodno 397.5 km
Volodymyr 398.0 km
Lvov 402.0 km
Klaipėda 404.3 km
Žiar nad Hronom 409.1 km
Prievidza 409.9 km
Eger 415.0 km
Szécsény 418.0 km
Nyiregyhaza/Napkor 418.1 km
Laukuva 418.6 km
Chojnice 419.8 km
Kékes 426.1 km
Palanga 428.7 km
Cervena 429.3 km
Poroszló 438.0 km
Raseiniai 444.3 km
Dudince 445.2 km
Lębork 447.7 km
Letiště Vratislav 450.1 km
Poznań 451.1 km
Šerák 453.5 km
Holešov 453.7 km
Kaunas 454.5 km
Telšiai 455.8 km
Debrecín 460.4 km
Mochovce 460.6 km
Piła 477.8 km
Piešťany 478.9 km