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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.


Estações Meteorológicas Próximas - Acharnae Distância
Palácio de Tatoi 6.2 km
Elliniko Airport 19.4 km
Elêusis Aeroporto 20.5 km
El Venizelos 26.5 km
Atenas Aeroporto 28.5 km
Tânagra Aeroporto 32.6 km
Escíato 115.2 km
Esquiro Aeroporto 122.6 km
Siro Aeroporto 149.9 km
Nea Anchialos Airport 156.3 km
Trípoli Aeroporto 158.8 km
Milos Aeroporto 163.5 km
Lâmia 165.7 km
Paros Aeroporto 189.3 km
Míconos 191.6 km
Citera 200.5 km
Naxos 207.9 km
Naxos Aeroporto 208.4 km
Larissa National Airport 216.1 km
Calamata 217.7 km
Lemnos Aeroporto 249.8 km
Santorini 253.5 km
Patras Araxos Airport 258.0 km
Modon 260.2 km
Chania Intl. Airport 262.7 km
Aeroporto de Salonica-Macedónia 262.9 km
Quios Aeroporto 268.4 km
Andravida 273.3 km
Çeşme 286.6 km
Serres 304.8 km
Kavala/Chrisoupolis 309.9 km
Cozani 314.5 km
Zacinto Aeroporto 319.1 km
Heraclião Aeroporto 322.0 km
Tympaki Airport 327.7 km
Mitilene 334.1 km
Preveza 341.2 km
Castéli Aeroporto 342.3 km
Gevgelija 342.7 km
Ayvalık 352.2 km
Leros 353.2 km
Samos Aeroporto 356.0 km
Sandanski 357.7 km
Cefalônia Aeroporto 359.9 km
Çanakkale 361.7 km
Dikili 365.0 km
Castória Aeroporto 365.5 km
Janina 366.5 km
Çiğli Air Base 367.3 km
Alexandrópolis Aeroporto 370.4 km
Demir Kapija 379.4 km
Florina 380.1 km
Aeroporto de Esmirna-Adnan Menderes 381.4 km
Esmirna 383.8 km
Berovo 384.3 km
Siteía Aeroporto 391.5 km
Kuşadası 392.1 km
Balıkesir Koca Seyit Airport 394.0 km
Cós Aeroporto 395.4 km
Bitola 403.0 km
Kardzhali 404.3 km
Prilepo 411.9 km
Štip 413.5 km
Manisa 415.3 km
Musala 418.4 km
Korçë 420.9 km
Bodrum 424.7 km
Plovdiv 426.4 km
Milas- Bodrum Airport 446.1 km
Gjirokastër 449.2 km
Ocrida Aeroporto 449.4 km
Kriva Palanka 449.6 km
Ohrid St. Paul Airport 451.9 km
Corfu 453.4 km
Sarandë 455.1 km
Aidim 458.9 km
Datça 459.3 km
Skopje-Petrovec 461.3 km
Akhisar 465.8 km
Sófia 467.6 km
Cárpatos 468.8 km
Edirne 479.4 km
Mourgash 484.2 km
Lazaropole 490.3 km
Baliquesir 490.4 km
Vranje 500.9 km
Pozharane 502.3 km
Tetovo 507.8 km
Kuçovë 510.8 km
Elbasani 512.9 km
Tekirdağ 514.9 km
Bandırma 521.6 km
Peshkopi 522.3 km
Vlorë 533.5 km
Kırklareli 535.0 km
Leskovac 540.4 km
Sliven 544.4 km
Kukës 549.8 km
Pristina Aeroporto 551.6 km
Yzberish 551.9 km