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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 - Chalcis Distance
Tanagra Airport 15.5 km
Elefsina Airport 39.5 km
Tatoi Palace 40.3 km
Elliniko Airport 58.5 km
El Venizelos 64.8 km
Athens Airport 65.5 km
Skiathos 75.7 km
Skyros Airport 111.5 km
Nea Anchialos Airport 119.3 km
Lamia 136.8 km
Tripoli Airport 163.3 km
Larissa National Airport 179.0 km
Syros Airport 181.3 km
Milos Airport 203.3 km
Mykonos 220.4 km
Thessaloniki Airport 222.8 km
Paros Airport 223.9 km
Kalamata 226.3 km
Kythira 230.8 km
Lemnos Airport 234.9 km
Naxos 240.0 km
Naxos Airport 240.8 km
Patras Araxos Airport 245.0 km
Andravida 263.7 km
Serres 267.0 km
Methoni 268.9 km
Kozani 277.5 km
Kavala/Chrisoupolis 280.5 km
Chios Airport 282.3 km
Santorini 289.9 km
Çeşme 300.9 km
Chania Intl. Airport 302.3 km
Gevgelija 302.5 km
Zakynthos Airport 310.9 km
Sandanski 318.8 km
Preveza 319.1 km
Kastoria Airport 329.9 km
Ioannina 337.3 km
Demir Kapija 339.2 km
Mytilene 339.7 km
Florina 342.9 km
Berovo 344.4 km
Cephalonia Airport 346.8 km
Alexandroupolis Airport 354.1 km
Çanakkale 354.9 km
Ayvalık 355.6 km
Heraklion Airport 361.8 km
Bitola 365.1 km
Tympaki Airport 368.0 km
Dikili 371.4 km
Prilep 372.9 km
Štip 373.3 km
Samos Airport 376.5 km
Leros 378.4 km
Kardzhali 379.2 km
Çiğli Air Base 379.7 km
Musala 380.9 km
Kastelli Airport 382.0 km
Korçë 386.5 km
Plovdiv 395.3 km
Balıkesir Koca Seyit Airport 396.0 km
İzmir Adnan Menderes Airport 396.1 km
İzmir 397.0 km
Kriva Palanka 409.4 km
Kuşadası 410.5 km
Ohrid Airport 413.0 km
Ohrid St. Paul AP 415.5 km
Gjirokastër 419.5 km
Skopje-Petrovec 421.5 km
Kos Airport 422.5 km
Manisa 427.1 km
Sarandë 427.1 km
Corfu 427.4 km
Sitia Airport 429.2 km
Sofia 429.5 km
Mourgash 447.1 km
Bodrum 449.3 km
Lazaropole 453.0 km
Vranje 460.7 km
Edirne 462.8 km
Pozharane 464.0 km
Milas- Bodrum Airport 468.9 km
Tetovo 469.1 km
Akhisar 475.4 km
Aydın 476.9 km
Kuçovë 478.2 km
Elbasan 478.2 km
Peshkopi 485.3 km
Datça 485.6 km
Balıkesir 494.5 km
Leskovac 500.2 km
Karpathos 502.0 km
Vlorë 503.6 km
Tekirdağ 507.9 km
Pristina Airport 512.1 km
Kukës 512.1 km
Yzberish 517.5 km
Tirana 519.0 km
Bandırma 520.8 km
Sliven 522.0 km