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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.


Stazioni meteo nelle vicinanze - Palermo Distanza
Aeroporto di Palermo-Punta Raisi 24.7 km
Prizzi 43.3 km
Sciacca 66.4 km
Ustica 67.2 km
Aeroporto di Trapani-Birgi 92.2 km
Enna 123.7 km
Gela 150.0 km
Base aerea di Sigonella 195.2 km
Pantelleria 203.5 km
Catania/Fontanarosa 206.5 km
Messina 250.7 km
Cozzo Spadaro 255.0 km
Reggio Calabria 261.6 km
Luqa/Malta 276.5 km
Kélibia Aeroporto 281.8 km
Isola di Capri 283.2 km
Isola di Lampedusa 292.6 km
Isola di Ponza 307.8 km
Napoli/Capodichino 320.6 km
Aeroporto di Salerno-Costa d'Amalfi 325.9 km
Bonifati 329.8 km
Grazzanise 330.3 km
Zaghonan Magrane 335.3 km
Zaghonan Magrane 335.3 km
Nabeul 337.5 km
Lamezia Terme 339.5 km
Tunis/Carthage AP 368.2 km
Monte Scuro 369.7 km
Latronico 370.2 km
Mahdia 376.6 km
Latina 376.7 km
Frosinone 382.8 km
Trevico 384.2 km
Enfida 386.9 km
Aeroporto di Monastir-Habib Bourguiba 388.3 km
Pratica di Mare 397.2 km
Biserta Aeroporto 400.5 km
Campobasso 403.5 km
Ciampino 407.5 km
Aeroporto di Roma-Fiumicino 418.7 km
Roma/Urbe 427.5 km
Guidonia Montecelio 427.7 km
Crotone 430.3 km
Capo Carbonara 435.5 km
Capo S. Lorenzo 436.1 km
Aeroporto di Foggia 437.0 km
Al-Qayrawan Aeroporto 444.1 km
Capo Bellavista 446.4 km
Vigna Di Valle 448.8 km
Amendola 457.4 km
Civitavecchia 457.5 km
Termoli 461.5 km
Sfax/El-Maou AP 469.6 km
Marina di Ginosa 471.0 km
Rieti 471.8 km
Monte Terminillo 474.7 km
San Giovanni Teatino 477.9 km
Pescara 479.1 km
Béja 481.9 km
Monte Sant'Angelo 487.8 km
Aeroporto di Cagliari-Elmas 488.2 km
Viterbo 490.8 km
Siliana 490.9 km
Gioia del Colle 495.7 km
Bari/Palese Macchie 506.6 km
Vieste 517.7 km
Olbia 520.3 km
Monte Argentario 523.2 km
Grottaglie 525.0 km
Sidi Bouzid 543.1 km
Radicofani 548.8 km
Grosseto 563.7 km
Pelagosa 566.3 km
Capo Pertusato 580.7 km
Brindisi/Casale 585.3 km
Figari 597.2 km
Monte Calamita 599.1 km
Monte Calamita 600.0 km
Solenzara 601.6 km
Alistro 618.4 km
Lagosta 642.1 km
Aeroporto di Bastia Poretta 645.4 km
Neum 704.3 km