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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 - Rio Distance
Patras Araxos Airport 43.7 km
Andravida 68.4 km
Lamia 93.9 km
Tripoli Airport 104.7 km
Zakynthos Airport 115.3 km
Preveza 130.0 km
Kalamata 130.0 km
Cephalonia Airport 144.1 km
Nea Anchialos Airport 147.1 km
Methoni 151.9 km
Larissa National Airport 154.5 km
Ioannina 181.8 km
Tanagra Airport 194.8 km
Elefsina Airport 198.1 km
Kozani 206.7 km
Skiathos 211.6 km
Elliniko Airport 220.3 km
Tatoi Palace 223.6 km
Kastoria Airport 229.5 km
El Venizelos 240.7 km
Athens Airport 244.1 km
Kythira 248.8 km
Corfu 248.9 km
Sarandë 257.7 km
Gjirokastër 259.7 km
Florina 260.6 km
Thessaloniki Airport 263.5 km
Korçë 265.6 km
Bitola 288.4 km
Gevgelija 304.5 km
Skyros Airport 308.2 km
Ohrid Airport 309.7 km
Ohrid St. Paul AP 312.0 km
Prilep 314.7 km
Demir Kapija 325.8 km
Kuçovë 334.1 km
Vlorë 341.3 km
Milos Airport 341.9 km
Serres 346.6 km
Elbasan 351.4 km
Lazaropole 356.5 km
Štip 358.9 km
Sazan 360.6 km
Syros Airport 363.1 km
Berovo 371.3 km
Sandanski 372.7 km
Skopje-Petrovec 379.5 km
Pozharane 382.0 km
Peshkopi 382.1 km
Yzberish 385.2 km
Chania Intl. Airport 385.9 km
Tirana 386.3 km
Paros Airport 394.6 km
Tetovo 394.7 km
Durrës 406.4 km
Mykonos 406.8 km
Kriva Palanka 407.0 km
Santa Maria di Leuca 414.4 km
Kukës 416.5 km
Kavala/Chrisoupolis 416.7 km
Naxos 417.9 km
Naxos Airport 418.0 km
Lemnos Airport 418.0 km
Vranje 439.4 km
Musala 446.3 km
Santorini 449.4 km
Pristina Airport 451.0 km
Lecce 452.2 km
Shkodër 466.5 km
Tympaki Airport 469.3 km
Sofia 481.2 km
Leskovac 484.2 km
Heraklion Airport 484.7 km
Brindisi/Casale 492.5 km
Bar 497.4 km
Kastelli Airport 506.1 km
Podgorica 509.2 km
Mourgash 510.5 km
Plovdiv 512.5 km
Podgorica 514.4 km
Kardzhali 525.2 km
Alexandroupolis Airport 528.3 km
Crotone 530.2 km
Grottaglie 540.5 km
Tivat 546.4 km
Nikšić 562.8 km
Dubrovnik Airport 593.0 km
Dubrovnik 613.3 km
Neum 671.4 km