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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 - Chalandri Vzdálenost
Tatoi 11.1 km
Elliniko (Letiště) 12.6 km
El Venizelos 17.1 km
Athény Letiště 19.8 km
Eleusis Letiště 26.8 km
Tanagra Letiště 42.6 km
Skiathos 124.7 km
Skyros Letiště 125.4 km
Syros Letiště 141.3 km
Milos Letiště 153.3 km
Tripolis Letiště 161.2 km
Nea Anchialos (Letiště) 166.3 km
Lamia 174.8 km
Paros Letiště 179.9 km
Mykonos 183.6 km
Kythéra 195.0 km
Naxos 199.0 km
Naxos Letiště 199.4 km
Kalamata 218.7 km
Larissa National (Letiště) 226.1 km
Théra 243.7 km
Lémnos Letiště 252.5 km
Letiště Chania 253.4 km
Methoni 261.0 km
Chios Letiště 263.8 km
Patras Araxos (Letiště) 263.9 km
Letiště Soluň 272.8 km
Andravida 278.4 km
Çeşme 281.8 km
Heráklion Letiště 311.9 km
Serres 313.6 km
Kavala/Chrisoupolis 316.3 km
Tympaki (Letiště) 317.8 km
Zakynthos Letiště 323.9 km
Kozani 324.5 km
Mytiléna 331.4 km
Kastelli (Letiště) 332.2 km
Leros 345.7 km
Preveza 348.8 km
Samos Letiště 349.6 km
Ayvalık 350.1 km
Gevgelija 352.7 km
Çanakkale 362.1 km
Dikili 362.1 km
Çiğli Air Base 362.9 km
Kefalonia Letiště 365.7 km
Sandanski 366.9 km
Alexandrupoli Letiště 373.2 km
Kastoria Letiště 375.4 km
Ioánnina 375.4 km
İzmir Adnan Menderes (Letiště) 376.4 km
Smyrna 379.1 km
Sitia Letiště 381.5 km
Kuşadası 386.1 km
Kós Letiště 387.4 km
Demir Kapija 389.4 km
Florina 390.1 km
Balıkesir Koca Seyit (Letiště) 392.1 km
Berovo 393.9 km
Kardžali 409.4 km
Manisa 411.0 km
Bitola 413.1 km
Bodrum 417.4 km
Prilep 422.0 km
Štip 423.6 km
Musala 427.0 km
Korçë 430.6 km
Plovdiv 433.0 km
Milas- Bodrum (Letiště) 439.1 km
Datça 451.5 km
Aydın 452.9 km
Gjirokastër 458.1 km
Ochrid Letiště 459.3 km
Kriva Palanka 459.4 km
Karpathos 459.5 km
Korfu 461.7 km
Ohrid St. Paul (Letiště) 461.9 km
Akhisar 461.9 km
Saranda 463.7 km
Skopje-Petrovec 471.4 km
Sofie 476.5 km
Edirne 482.1 km
Balıkesir 487.8 km
Mourgash 492.7 km
Lazaropole 500.3 km
Vranje 510.9 km
Pozharane 512.4 km
Tekirdağ 515.1 km
Tetovo 517.9 km
Kuçovë 520.1 km
Bandırma 520.3 km
Elbasan 522.6 km
Peshkopi 532.3 km
Kırklareli 536.8 km
Vlora 542.4 km
Sliven 548.6 km
Leskovac 550.3 km
Çorlu 556.9 km
Kukës 559.8 km
Yzberish 561.5 km