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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 - Castellammare del Golfo Distanza
Aeroporto di Palermo-Punta Raisi 28.9 km
Aeroporto di Trapani-Birgi 45.0 km
Sciacca 60.9 km
Prizzi 68.5 km
Ustica 81.7 km
Enna 163.3 km
Pantelleria 165.6 km
Gela 179.5 km
Base aerea di Sigonella 236.0 km
Kélibia Aeroporto 237.3 km
Catania/Fontanarosa 248.4 km
Isola di Lampedusa 275.1 km
Cozzo Spadaro 288.9 km
Zaghonan Magrane 292.0 km
Zaghonan Magrane 292.0 km
Nabeul 294.0 km
Luqa/Malta 294.3 km
Messina 297.5 km
Reggio Calabria 308.0 km
Isola di Capri 310.9 km
Isola di Ponza 314.7 km
Tunis/Carthage AP 322.0 km
Mahdia 340.6 km
Enfida 344.3 km
Napoli/Capodichino 347.7 km
Aeroporto di Monastir-Habib Bourguiba 349.2 km
Biserta Aeroporto 353.3 km
Grazzanise 353.8 km
Aeroporto di Salerno-Costa d'Amalfi 360.7 km
Bonifati 375.1 km
Latina 383.4 km
Lamezia Terme 386.7 km
Capo Carbonara 393.5 km
Frosinone 394.9 km
Capo S. Lorenzo 396.7 km
Pratica di Mare 397.8 km
Al-Qayrawan Aeroporto 402.1 km
Capo Bellavista 410.1 km
Ciampino 410.3 km
Latronico 413.9 km
Monte Scuro 416.4 km
Aeroporto di Roma-Fiumicino 417.3 km
Trevico 419.2 km
Roma/Urbe 429.6 km
Campobasso 431.3 km
Guidonia Montecelio 432.7 km
Sfax/El-Maou AP 435.1 km
Béja 435.1 km
Siliana 445.6 km
Aeroporto di Cagliari-Elmas 446.2 km
Vigna Di Valle 447.8 km
Civitavecchia 452.1 km
Decimomannu 459.7 km
Tabarka 460.1 km
Aeroporto di Foggia 472.3 km
Rieti 478.6 km
Monte Terminillo 482.9 km
Jendouba Aeroporto 484.5 km
Viterbo 488.9 km
Olbia 489.4 km
Termoli 490.6 km
Amendola 493.3 km
San Giovanni Teatino 498.8 km
Pescara 499.9 km
Sidi Bouzid 501.7 km
Le Kef 509.2 km
Monte Argentario 512.6 km
Marina di Ginosa 515.4 km
Monte Sant'Angelo 524.2 km
Capo Frasca 526.9 km
Gioia del Colle 539.2 km
Thala 539.7 km
Radicofani 545.4 km
Kasserine 548.0 km
Bari/Palese Macchie 548.6 km
Capo Pertusato 551.0 km
Grosseto 553.7 km
Vieste 554.5 km
Figari 567.9 km
Solenzara 576.0 km
Monte Calamita 583.8 km
Monte Calamita 584.6 km
Alghero 586.6 km
Capo Caccia 594.6 km
Alistro 595.3 km
Gafsa Aeroporto 599.8 km
Pelagosa 601.7 km
Cheikh Larbi Tébessa Airport 602.1 km
Aeroporto di Bastia Poretta 623.3 km
Aeroporto di Ajaccio Napoleone Bonaparte 623.5 km
Isola Rossa 670.5 km
Calvi/St Catherine 671.8 km
Lagosta 679.1 km