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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 - Pireus Vzdálenost
Elliniko (Letiště) 11.1 km
Eleusis Letiště 16.5 km
Tatoi 24.5 km
El Venizelos 31.6 km
Athény Letiště 35.3 km
Tanagra Letiště 40.7 km
Skiathos 128.4 km
Skyros Letiště 141.4 km
Tripolis Letiště 143.3 km
Syros Letiště 154.6 km
Milos Letiště 157.0 km
Nea Anchialos (Letiště) 161.4 km
Lamia 164.6 km
Kythéra 182.1 km
Paros Letiště 190.6 km
Mykonos 197.7 km
Kalamata 200.7 km
Naxos 211.2 km
Naxos Letiště 211.5 km
Larissa National (Letiště) 220.6 km
Methoni 243.1 km
Patras Araxos (Letiště) 247.8 km
Letiště Chania 250.1 km
Théra 252.5 km
Andravida 261.6 km
Lémnos Letiště 268.6 km
Letiště Soluň 274.3 km
Chios Letiště 281.2 km
Çeşme 299.1 km
Zakynthos Letiště 306.7 km
Heráklion Letiště 315.0 km
Tympaki (Letiště) 317.9 km
Kozani 318.5 km
Serres 319.7 km
Kavala/Chrisoupolis 328.0 km
Preveza 334.8 km
Kastelli (Letiště) 335.7 km
Kefalonia Letiště 349.3 km
Mytiléna 349.4 km
Gevgelija 352.8 km
Leros 360.5 km
Ioánnina 364.2 km
Samos Letiště 365.8 km
Kastoria Letiště 368.0 km
Ayvalık 368.1 km
Sandanski 371.6 km
Çanakkale 379.6 km
Dikili 380.1 km
Çiğli Air Base 380.4 km
Florina 384.3 km
Sitia Letiště 388.3 km
Demir Kapija 388.9 km
Alexandrupoli Letiště 389.2 km
İzmir Adnan Menderes (Letiště) 393.6 km
Smyrna 396.5 km
Berovo 396.7 km
Kós Letiště 401.4 km
Kuşadası 402.7 km
Bitola 407.9 km
Balıkesir Koca Seyit (Letiště) 410.1 km
Prilep 418.3 km
Korçë 422.3 km
Kardžali 423.0 km
Štip 423.3 km
Manisa 428.5 km
Bodrum 432.2 km
Gjirokastër 446.8 km
Korfu 448.8 km
Saranda 451.7 km
Ochrid Letiště 452.5 km
Milas- Bodrum (Letiště) 454.4 km
Ohrid St. Paul (Letiště) 455.0 km
Datça 465.7 km
Aydın 469.5 km
Skopje-Petrovec 469.5 km
Karpathos 470.2 km
Akhisar 479.6 km
Lazaropole 494.3 km
Edirne 498.2 km
Balıkesir 505.8 km
Pozharane 507.6 km
Kuçovë 510.4 km
Elbasan 514.3 km
Peshkopi 525.9 km
Vlora 531.2 km
Tekirdağ 532.7 km
Bandırma 538.2 km
Sazan 552.4 km
Yzberish 552.9 km
Kırklareli 553.6 km
Tirana 554.3 km
Çorlu 574.6 km
Drač 581.6 km