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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.


Najbliższa stacja pogodowa - Grodzisk Mazowiecki Odległość
Port lotniczy Warszawa-Modlin 38.1 km
Warszawa - Okęcie 39.9 km
Radom Port lotniczy 98.1 km
Mława 110.1 km
Płock 111.3 km
Sulejów 113.3 km
Kozienice 116.9 km
Kielce 132.3 km
Łódź 140.6 km
Ostrołęka 148.2 km
Olsztyn 176.9 km
Siedlce 182.6 km
Sandomierz 188.7 km
Mikołajki 206.8 km
Częstochowa 215.6 km
Lotnisko Lublin-Radawiec 217.2 km
Tarnów 217.6 km
Koło 218.1 km
Kętrzyn 222.4 km
Kraków Port lotniczy -Balice 228.1 km
Wieluń 245.6 km
Toruń 248.0 km
Port lotniczy Lublin 249.3 km
Elbląg 254.3 km
Nowy Sącz 256.0 km
Port lotniczy Rzeszów-Jasionka 260.3 km
Katowice - Pyrzowice 261.9 km
Kaliningrad 274.5 km
Krosno 279.2 km
Kalisz 283.8 km
Bielsko-Biała 299.3 km
Zakopane 300.3 km
Żuławki 301.0 km
Lesek 302.3 km
Białystok 302.7 km
Łomnica 304.1 km
Kasprowy Wierch 305.8 km
Bydgoszcz 314.3 km
Szczyrbskie Jezioro 315.3 km
Poprad 317.3 km
Tisinec 319.1 km
Švábovce 319.8 km
Zamość 321.8 km
Preszów 326.8 km
Włodawa 329.3 km
Hel 331.8 km
Opole 332.1 km
Lesko 332.7 km
Terespol 334.0 km
Suwałki 335.2 km
Przemyśl 336.2 km
Port Lotniczy Gdańsk im. Lecha Wałęsy 339.4 km
Telgárt 340.8 km
Brześć 341.4 km
Chopok 343.2 km
Racibórz 343.4 km
Kojsovska Hola 345.8 km
Szyłokarczma 352.0 km
Łysa Góra 358.9 km
Kamenica nad Cirochou 360.7 km
Koszyce 361.5 km
Zilina Hricov 372.6 km
Żylina Port lotniczy 373.0 km
Jósvafő 375.3 km
Ostrawa 375.5 km
Milhostov 375.8 km
Kłajpeda 383.0 km
Chojnice 383.9 km
Sliač 394.7 km
Mariampol 395.5 km
Użhorod 401.9 km
Łuczeniec Port lotniczy 403.3 km
Połąga 407.5 km
Ławkowo 408.0 km
Lębork 410.8 km
Grodno 412.9 km
Prievidza 413.9 km
Miszkolc 415.6 km
Żar nad Hronem 416.1 km
Záhony 418.9 km
Cervena 419.4 km
Port lotniczy Poznań-Ławica 420.8 km
Port lotniczy Wrocław-Strachowice 428.0 km
Włodzimierz 431.5 km
Szécsény 432.4 km
Lwów 438.4 km
Šerák 438.6 km
rosieński 442.0 km
Łeba 443.3 km
Telsze 444.1 km
Piła 444.4 km
Holešov 447.2 km
Petrobaltic Beta 447.9 km
Dudince 454.2 km
Leszno 455.3 km
Kowno 459.8 km
Lipawa 460.0 km
Mochovce 465.9 km
Szczecinek 470.5 km
Prościejów 476.4 km