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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 - Mazara del Vallo Distance
Trapani 30.5 km
Sciacca 62.3 km
Falcone Borsellino Airport 80.3 km
Prizzi 94.4 km
Pantelleria 113.6 km
Ustica 132.4 km
Kelibia Airport 188.4 km
Enna 189.5 km
Gela 191.9 km
Lampedusa 233.6 km
Zaghonan Magrane 241.8 km
Nabeul 244.0 km
Naval Air Station Sigonella 261.1 km
Catania/Fontanarosa 275.3 km
Tunis/Carthage AP 276.4 km
Luqa/Malta 287.5 km
Mahdia 288.8 km
Enfidha 293.6 km
Monastir Habib Bourguiba Intl. Airport 297.3 km
Cozzo Spadaro 302.5 km
Bizerte Airport 312.9 km
Messina 335.5 km
Reggio Calabria 344.3 km
Kairouan Airport 351.1 km
Ponza 357.0 km
Capri 361.9 km
Capo Carbonara 376.8 km
Sfax/El-Maou AP 383.4 km
Capo S. Lorenzo 385.8 km
Béja 391.5 km
Siliana 397.7 km
Naples/Capodichino 398.5 km
Grazzanise 403.6 km
Capo Bellavista 405.1 km
Salerno Costa d'Amalfi Airport 412.7 km
Tabarka 419.0 km
Bonifati 423.3 km
Latina 424.9 km
Cagliari Elmas Airport 429.1 km
Lamezia Terme 429.8 km
Pratica di Mare 435.0 km
Frosinone 439.5 km
Jendouba Airport 440.1 km
Decimomannu 443.4 km
Ciampino 449.1 km
Sidi Bouzid 450.4 km
Fiumicino Airport 452.8 km
Djerba Mellita AP 459.3 km
Monte Scuro 462.0 km
El Kef 463.0 km
Latronico 463.6 km
Rome/Urbe 467.7 km
Trevico 471.1 km
Campobasso 482.1 km
Thala 491.2 km
Olbia 492.5 km
Gabès Airport 495.4 km
Kasserine 498.0 km
Capo Frasca 512.6 km
Gabès 520.5 km
Medenine 524.0 km
Foggia "Gino Lisa" Airport 524.2 km
Amendola 545.3 km
Gafsa Airport 548.5 km
Cheikh Larbi Tébessa Airport 554.1 km
Capo Pertusato 555.2 km
Marina di Ginosa 564.5 km
Figari 572.5 km
Monte Sant'Angelo 576.1 km
Alghero 579.4 km
Solenzara 585.6 km
Capo Caccia 586.2 km
Gioia del Colle 589.1 km
Kebili 590.4 km
Bari/Palese Macchie 599.3 km
Vieste 606.4 km
Ajaccio Napoleon Bonaparte Airport 628.9 km
Tozeur/Nefta AP 645.1 km