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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 - Ithaca Distance
Cephalonia Airport 35.5 km
Preveza 57.5 km
Zakynthos Airport 66.8 km
Andravida 78.5 km
Patras Araxos Airport 81.1 km
Ioannina 139.1 km
Corfu 158.0 km
Sarandë 176.9 km
Gjirokastër 189.9 km
Methoni 193.1 km
Kalamata 197.7 km
Lamia 198.5 km
Tripoli Airport 206.3 km
Kastoria Airport 225.5 km
Larissa National Airport 230.2 km
Kozani 233.1 km
Korçë 234.3 km
Nea Anchialos Airport 247.5 km
Vlorë 258.9 km
Florina 262.3 km
Kuçovë 269.8 km
Sazan 274.3 km
Ohrid Airport 284.7 km
Ohrid St. Paul AP 286.4 km
Bitola 288.0 km
Elbasan 300.7 km
Santa Maria di Leuca 304.7 km
Tanagra Airport 313.6 km
Elefsina Airport 316.9 km
Skiathos 321.1 km
Prilep 322.2 km
Yzberish 326.2 km
Tirana 326.8 km
Lazaropole 329.7 km
Kythira 334.5 km
Thessaloniki Airport 334.8 km
Durrës 337.5 km
Elliniko Airport 338.5 km
Tatoi Palace 342.5 km
Lecce 346.4 km
Peshkopi 347.1 km
Gevgelija 349.8 km
Demir Kapija 359.1 km
El Venizelos 359.2 km
Athens Airport 362.7 km
Pozharane 362.9 km
Tetovo 379.6 km
Kukës 383.6 km
Štip 386.7 km
Skopje-Petrovec 387.8 km
Brindisi/Casale 390.3 km
Shkodër 409.2 km
Crotone 411.8 km
Berovo 419.9 km
Serres 422.1 km
Skyros Airport 423.8 km
Bar 431.0 km
Grottaglie 433.0 km
Sandanski 434.2 km
Kriva Palanka 435.8 km
Pristina Airport 439.3 km
Podgorica 449.2 km
Milos Airport 452.4 km
Vranje 453.9 km
Podgorica 455.6 km
Tivat 476.8 km
Marina di Ginosa 478.3 km
Chania Intl. Airport 479.5 km
Syros Airport 480.5 km
Gioia del Colle 491.2 km
Monte Scuro 491.2 km
Leskovac 498.0 km
Lamezia Terme 500.4 km
Nikšić 500.9 km
Musala 506.6 km
Kavala/Chrisoupolis 509.0 km
Dubrovnik Airport 517.7 km
Bari/Palese Macchie 526.0 km
Sofia 532.3 km
Dubrovnik 536.2 km
Latronico 553.7 km
Tympaki Airport 564.5 km
Mourgash 565.4 km
Neum 590.9 km
Plovdiv 592.5 km
Vieste 628.5 km
Lastovo 628.9 km
Palagruža 654.6 km