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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.


Nearby Weather Stations - Arnaia Distance
Serres 59.5 km
Thessaloniki Airport 68.7 km
Sandanski 114.5 km
Kavala/Chrisoupolis 124.1 km
Skiathos 133.0 km
Gevgelija 138.6 km
Berovo 150.3 km
Nea Anchialos Airport 156.3 km
Larissa National Airport 156.4 km
Musala 173.4 km
Demir Kapija 176.6 km
Skyros Airport 183.9 km
Lemnos Airport 192.4 km
Kozani 201.3 km
Štip 202.9 km
Lamia 208.4 km
Plovdiv 212.0 km
Tanagra Airport 221.2 km
Sofia 222.3 km
Kriva Palanka 224.3 km
Kardzhali 231.0 km
Mourgash 239.9 km
Prilep 240.9 km
Tatoi Palace 243.1 km
Florina 245.0 km
Elefsina Airport 246.6 km
Bitola 253.5 km
Kastoria Airport 256.1 km
Alexandroupolis Airport 262.4 km
Athens Airport 263.0 km
Skopje-Petrovec 263.7 km
El Venizelos 264.1 km
Elliniko Airport 264.6 km
Dimitrovgrad 275.4 km
Vranje 281.8 km
Lovech 297.3 km
Korçë 313.9 km
Ohrid Airport 314.5 km
Leskovac 314.5 km
Çanakkale 315.5 km
Ohrid St. Paul AP 316.6 km
Ioannina 320.2 km
Tripoli Airport 329.7 km
Tetovo 330.8 km
Pozharane 333.6 km
Lazaropole 338.7 km
Bechet 339.2 km
Patras Araxos Airport 340.2 km
Syros Airport 343.4 km
Niš 347.4 km
Preveza 352.7 km
Edirne 352.9 km
Pristina Airport 356.5 km
Chios Airport 357.4 km
Gorna Oryahovitsa Airport 359.2 km
Turnu Măgurele 361.8 km
Băileşti 363.2 km
Mytilene 364.9 km
Calafat 365.1 km
Mykonos 366.3 km
Ayvalık 366.9 km
Vidin 367.2 km
Andravida 367.8 km
Peshkopi 371.9 km
Çeşme 374.2 km
Sliven 375.7 km
Zimnicea 377.5 km
Caracal 377.8 km
Gjirokastër 384.4 km
Kukës 387.1 km
Elbasan 391.1 km
Kalamata 391.6 km
Paros Airport 391.7 km
Craiova 391.9 km
Balıkesir Koca Seyit Airport 393.2 km
Dikili 394.3 km
Naxos 396.3 km
Milos Airport 397.7 km
Naxos Airport 397.8 km
Roşiorii de Vede 398.7 km
Negotin 400.9 km
Kruševac 403.0 km
Sarandë 403.7 km
Alexandria 405.2 km
Kuçovë 411.3 km
Bâcleş 411.4 km
Slatina 411.7 km
Zakynthos Airport 411.9 km
Crni Vrh Mountain 414.9 km
Corfu 417.9 km
Cephalonia Airport 421.2 km
Kopaonik Mountain 423.4 km
Kırklareli 425.3 km
Methoni 429.6 km
Çiğli Air Base 429.9 km
Yzberish 430.2 km
Ćuprija 431.1 km
Giurgiu 431.2 km
Drăgăşani 431.8 km
Tirana 432.0 km