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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 - Marousi Vzdálenost
Tatoi 7.7 km
Elliniko (Letiště) 15.6 km
El Venizelos 19.0 km
Athény Letiště 21.2 km
Eleusis Letiště 26.2 km
Tanagra Letiště 40.1 km
Skiathos 121.4 km
Skyros Letiště 122.7 km
Syros Letiště 142.7 km
Milos Letiště 156.3 km
Tripolis Letiště 162.3 km
Nea Anchialos (Letiště) 163.8 km
Lamia 173.1 km
Paros Letiště 181.8 km
Mykonos 184.7 km
Kythéra 198.1 km
Naxos 200.5 km
Naxos Letiště 201.0 km
Kalamata 220.2 km
Larissa National (Letiště) 223.6 km
Théra 246.0 km
Lémnos Letiště 249.9 km
Letiště Chania 256.7 km
Methoni 262.6 km
Chios Letiště 263.3 km
Patras Araxos (Letiště) 263.7 km
Letiště Soluň 269.5 km
Andravida 278.6 km
Çeşme 281.4 km
Serres 310.2 km
Kavala/Chrisoupolis 313.0 km
Heráklion Letiště 314.8 km
Tympaki (Letiště) 321.0 km
Kozani 322.0 km
Zakynthos Letiště 324.1 km
Mytiléna 330.4 km
Kastelli (Letiště) 335.1 km
Leros 346.5 km
Preveza 347.9 km
Ayvalık 348.8 km
Gevgelija 349.5 km
Samos Letiště 350.0 km
Çanakkale 360.1 km
Dikili 361.1 km
Çiğli Air Base 362.4 km
Sandanski 363.5 km
Kefalonia Letiště 365.6 km
Alexandrupoli Letiště 370.6 km
Kastoria Letiště 373.1 km
Ioánnina 373.8 km
İzmir Adnan Menderes (Letiště) 376.2 km
Smyrna 378.8 km
Sitia Letiště 384.0 km
Kuşadası 386.3 km
Demir Kapija 386.4 km
Florina 387.6 km
Kós Letiště 388.5 km
Berovo 390.6 km
Balıkesir Koca Seyit (Letiště) 390.8 km
Kardžali 406.3 km
Bitola 410.5 km
Manisa 410.5 km
Bodrum 418.1 km
Prilep 419.2 km
Štip 420.5 km
Musala 423.6 km
Korçë 428.4 km
Plovdiv 429.8 km
Milas- Bodrum (Letiště) 439.7 km
Datça 452.5 km
Aydın 453.1 km
Kriva Palanka 456.2 km
Gjirokastër 456.5 km
Ochrid Letiště 456.9 km
Ohrid St. Paul (Letiště) 459.5 km
Korfu 460.5 km
Akhisar 461.3 km
Karpathos 461.3 km
Saranda 462.3 km
Skopje-Petrovec 468.5 km
Sofie 473.1 km
Edirne 479.5 km
Balıkesir 486.7 km
Mourgash 489.3 km
Lazaropole 497.8 km
Vranje 507.8 km
Pozharane 509.7 km
Tekirdağ 513.2 km
Tetovo 515.2 km
Kuçovë 518.2 km
Bandırma 518.8 km
Elbasan 520.5 km
Peshkopi 529.8 km
Kırklareli 534.4 km
Vlora 540.8 km
Sliven 545.7 km
Leskovac 547.2 km
Çorlu 555.1 km
Kukës 557.3 km
Priština Letiště 558.9 km