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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.


Estaciones meteorológicas cercanas - Arnaia Distancia
Serres 59.5 km
Macedonia aeropuerto 68.7 km
Sandanski 114.5 km
Kavala/Chrisoupolis 124.1 km
Scíathos 133.0 km
Gevgelija 138.6 km
Berovo 150.3 km
Nea Anjíalos Aeropuerto 156.3 km
Nacional de Lárisa aeropuerto 156.4 km
Musala 173.4 km
Demir Kapija 176.6 km
Esciros Aeropuerto 183.9 km
Lemnos Aeropuerto 192.4 km
Kozani 201.3 km
Štip 202.9 km
Lamía 208.4 km
Plovdiv 212.0 km
Tanagra Aeropuerto 221.2 km
Sofía 222.3 km
Kriva Palanka 224.3 km
Kardzhali 231.0 km
Mourgash 239.9 km
Prilep 240.9 km
Tatoi 243.1 km
Flórina 245.0 km
Eleusis Aeropuerto 246.6 km
Bitola 253.5 km
Kastoriá Aeropuerto 256.1 km
Alejandrópolis Aeropuerto 262.4 km
Atenas Aeropuerto 263.0 km
Skopje-Petrovec 263.7 km
El Venizelos 264.1 km
Elliniko aeropuerto 264.6 km
Dimitrovgrad 275.4 km
Vranje 281.8 km
Lovech 297.3 km
Korçë 313.9 km
Ohrid Aeropuerto 314.5 km
Leskovac 314.5 km
Çanakkale 315.5 km
Ohrid St. Paul aeropuerto 316.6 km
Ioánina 320.2 km
Trípoli Aeropuerto 329.7 km
Tetovo 330.8 km
Pozharane 333.6 km
Lazaropole 338.7 km
Bechet 339.2 km
Patras Araxos aeropuerto 340.2 km
Siros Aeropuerto 343.4 km
Niš 347.4 km
Préveza 352.7 km
Edirne 352.9 km
Pristina Aeropuerto 356.5 km
Isla de Quíos Aeropuerto 357.4 km
Gorna Oryahovitsa aeropuerto 359.2 km
Turnu Măgurele 361.8 km
Băileşti 363.2 km
Mitilene 364.9 km
Calafat 365.1 km
Miconos 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
Gjirokastra 384.4 km
Kukës 387.1 km
Elbasan 391.1 km
Kalamata 391.6 km
Paros Aeropuerto 391.7 km
Craiova 391.9 km
Balıkesir Koca Seyit aeropuerto 393.2 km
Dikili 394.3 km
Naxos 396.3 km
Milo Aeropuerto 397.7 km
Naxos Aeropuerto 397.8 km
Roşiori 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
Zacinto Aeropuerto 411.9 km
Crni Vrh Mountain 414.9 km
Corfú 417.9 km
Cefalonia Aeropuerto 421.2 km
Kopaonik Mountain 423.4 km
Kırklareli 425.3 km
Modona 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