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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 - Viannos Distancia
Kasteli Aeropuerto 16.4 km
Heraclión Aeropuerto 37.3 km
Tympaki aeropuerto 70.1 km
Sitía Aeropuerto 79.8 km
Santorini 137.5 km
La Canea aeropuerto 148.6 km
Milo Aeropuerto 195.3 km
Paros Aeropuerto 199.8 km
Naxos Aeropuerto 204.3 km
Naxos 206.3 km
Kárpatos 211.1 km
Miconos 239.8 km
Siros Aeropuerto 246.9 km
Cos Aeropuerto 256.9 km
Leros 264.1 km
Citera 293.4 km
Datça 301.1 km
Bodrum 301.6 km
Samos Aeropuerto 312.9 km
Rodas/Paradissi 327.5 km
Milas-Bodrum aeropuerto 333.1 km
Atenas Aeropuerto 333.3 km
El Venizelos 333.7 km
Isla de Quíos Aeropuerto 339.1 km
Tobruk 340.2 km
Çeşme 340.6 km
Elliniko aeropuerto 342.9 km
Kuşadası 348.4 km
Sollum 351.9 km
Tatoi 358.1 km
Marmaris 365.8 km
Eleusis Aeropuerto 368.5 km
Esmirna-Adnan Menderes aeropuerto 377.4 km
Çiğli Air Base 389.5 km
Aydın 389.9 km
Esmirna 390.8 km
Tanagra Aeropuerto 390.8 km
Muğla 394.1 km
Esciros Aeropuerto 408.3 km
Dalaman 412.0 km
Trípoli Aeropuerto 418.8 km
Manisa 421.5 km
Marsa Matruh Aeropuerto 422.4 km
Mitilene 423.5 km
Kalamata 429.0 km
Dikili 434.8 km
Fethiye 441.8 km
Ayvalık 449.0 km
Modona 450.3 km
Scíathos 469.2 km
Akhisar 471.6 km
Kastelórizo 475.6 km
Balıkesir Koca Seyit aeropuerto 484.4 km
Kaş 486.5 km
Lemnos Aeropuerto 490.0 km
Denizli 491.2 km
Lamía 510.3 km
Nea Anjíalos Aeropuerto 513.4 km
Balıkesir 533.7 km
Andravida 543.9 km
Patras Araxos aeropuerto 544.8 km
Uşak 571.9 km
Nacional de Lárisa aeropuerto 572.5 km
Alexandria/Nouzha aeropuerto 633.7 km
Kütahya 667.9 km