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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 - Kifissia Vzdálenost
Tatoi 5.6 km
El Venizelos 18.9 km
Athény Letiště 20.1 km
Elliniko (Letiště) 20.3 km
Eleusis Letiště 29.7 km
Tanagra Letiště 40.6 km
Skyros Letiště 117.7 km
Skiathos 119.2 km
Syros Letiště 140.8 km
Milos Letiště 157.4 km
Nea Anchialos (Letiště) 163.8 km
Tripolis Letiště 166.9 km
Lamia 174.6 km
Paros Letiště 180.7 km
Mykonos 182.3 km
Naxos 198.9 km
Naxos Letiště 199.4 km
Kythéra 202.8 km
Larissa National (Letiště) 223.6 km
Kalamata 225.1 km
Lémnos Letiště 244.9 km
Théra 245.5 km
Chios Letiště 259.3 km
Letiště Chania 259.5 km
Patras Araxos (Letiště) 267.3 km
Methoni 267.5 km
Letiště Soluň 267.6 km
Çeşme 277.4 km
Andravida 282.4 km
Serres 307.1 km
Kavala/Chrisoupolis 308.7 km
Heráklion Letiště 315.9 km
Kozani 322.1 km
Tympaki (Letiště) 322.9 km
Mytiléna 325.8 km
Zakynthos Letiště 328.2 km
Kastelli (Letiště) 336.1 km
Leros 343.8 km
Ayvalık 344.1 km
Samos Letiště 346.6 km
Gevgelija 347.9 km
Preveza 350.6 km
Çanakkale 355.1 km
Dikili 356.6 km
Çiğli Air Base 358.3 km
Sandanski 360.7 km
Alexandrupoli Letiště 365.6 km
Kefalonia Letiště 369.2 km
İzmir Adnan Menderes (Letiště) 372.2 km
Kastoria Letiště 373.6 km
Smyrna 374.7 km
Ioánnina 375.6 km
Kuşadası 382.7 km
Sitia Letiště 384.0 km
Demir Kapija 384.9 km
Kós Letiště 386.0 km
Balıkesir Koca Seyit (Letiště) 386.1 km
Florina 387.7 km
Berovo 388.3 km
Kardžali 401.6 km
Manisa 406.4 km
Bitola 410.3 km
Bodrum 415.3 km
Prilep 418.6 km
Štip 418.9 km
Musala 420.4 km
Plovdiv 425.5 km
Korçë 429.2 km
Milas- Bodrum (Letiště) 436.6 km
Aydın 449.5 km
Datça 449.9 km
Kriva Palanka 454.3 km
Akhisar 457.0 km
Ochrid Letiště 457.2 km
Gjirokastër 458.2 km
Ohrid St. Paul (Letiště) 459.8 km
Karpathos 460.1 km
Korfu 462.7 km
Saranda 464.3 km
Skopje-Petrovec 467.4 km
Sofie 470.0 km
Edirne 474.5 km
Balıkesir 482.1 km
Mourgash 486.0 km
Lazaropole 497.9 km
Vranje 506.1 km
Tekirdağ 508.2 km
Pozharane 509.4 km
Bandırma 514.0 km
Tetovo 514.7 km
Kuçovë 519.4 km
Elbasan 521.2 km
Kırklareli 529.4 km
Peshkopi 530.0 km
Sliven 540.9 km
Vlora 542.5 km
Leskovac 545.3 km
Çorlu 550.1 km
Kukës 557.2 km
Priština Letiště 558.0 km