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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 - Keratsini Vzdálenost
Eleusis Letiště 12.6 km
Elliniko (Letiště) 14.3 km
Tatoi 23.6 km
El Venizelos 33.8 km
Tanagra Letiště 36.9 km
Athény Letiště 37.3 km
Skiathos 124.8 km
Skyros Letiště 140.1 km
Tripolis Letiště 142.5 km
Syros Letiště 157.4 km
Nea Anchialos (Letiště) 157.5 km
Milos Letiště 160.8 km
Lamia 161.1 km
Kythéra 184.6 km
Paros Letiště 193.9 km
Mykonos 200.4 km
Kalamata 200.6 km
Naxos 214.3 km
Naxos Letiště 214.6 km
Larissa National (Letiště) 216.8 km
Methoni 243.1 km
Patras Araxos (Letiště) 245.6 km
Letiště Chania 253.8 km
Théra 256.0 km
Andravida 259.8 km
Lémnos Letiště 267.3 km
Letiště Soluň 270.6 km
Chios Letiště 282.6 km
Çeşme 300.6 km
Zakynthos Letiště 305.1 km
Kozani 314.7 km
Serres 316.3 km
Heráklion Letiště 318.9 km
Tympaki (Letiště) 321.8 km
Kavala/Chrisoupolis 325.5 km
Preveza 332.0 km
Kastelli (Letiště) 339.5 km
Kefalonia Letiště 347.3 km
Gevgelija 348.9 km
Mytiléna 350.1 km
Ioánnina 360.9 km
Leros 363.0 km
Kastoria Letiště 364.3 km
Samos Letiště 367.9 km
Sandanski 368.0 km
Ayvalık 368.6 km
Çanakkale 379.2 km
Florina 380.5 km
Dikili 380.8 km
Çiğli Air Base 381.7 km
Demir Kapija 385.0 km
Alexandrupoli Letiště 387.9 km
Sitia Letiště 392.0 km
Berovo 393.0 km
İzmir Adnan Menderes (Letiště) 395.2 km
Smyrna 398.0 km
Bitola 404.1 km
Kós Letiště 404.1 km
Kuşadası 404.6 km
Balıkesir Koca Seyit (Letiště) 410.5 km
Prilep 414.5 km
Korçë 418.6 km
Štip 419.5 km
Kardžali 420.9 km
Manisa 429.9 km
Bodrum 434.7 km
Gjirokastër 443.5 km
Korfu 445.8 km
Saranda 448.5 km
Ochrid Letiště 448.8 km
Ohrid St. Paul (Letiště) 451.3 km
Milas- Bodrum (Letiště) 456.8 km
Skopje-Petrovec 465.6 km
Datça 468.4 km
Aydın 471.4 km
Karpathos 473.5 km
Akhisar 480.8 km
Lazaropole 490.5 km
Edirne 496.9 km
Pozharane 503.7 km
Balıkesir 506.4 km
Kuçovë 506.9 km
Elbasan 510.7 km
Peshkopi 522.1 km
Vlora 527.9 km
Tekirdağ 532.3 km
Bandırma 538.4 km
Sazan 549.2 km
Yzberish 549.3 km
Tirana 550.7 km
Kırklareli 552.6 km
Çorlu 574.3 km
Drač 578.1 km