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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.


Estaciones meteorológicas cercanas - Arezzo Distancia
Arezzo 0.0 km
Radicofani 62.4 km
Florencia/Peretola 81.0 km
Forlì 83.4 km
Perugia 83.5 km
Cervia 96.9 km
Frontone 97.9 km
Rímini 104.0 km
Viterbo 114.7 km
Grosseto 117.1 km
Point Marina/Ravenna 118.2 km
Bologna/Borgo 131.5 km
Monte Argentario 140.0 km
Monte Cimone 150.6 km
Ferrara 151.2 km
Civitavecchia 156.2 km
Vigna Di Valle 156.2 km
Rieti 158.7 km
Pisa 165.0 km
Terminillo 166.5 km
Ancona/Falconara 169.6 km
Rome/Urbe 179.9 km
Monte Calamita 180.2 km
Calamita 182.4 km
Roma-Fiumicino aeropuerto 186.5 km
Guidonia Montecelio 187.4 km
Ciampino 200.5 km
Pratica di Mare 208.1 km
Padua aeropuerto 210.2 km
Sarzana/Luni 218.5 km
Marco Polo aeropuerto 227.8 km
Parma 228.4 km
Villafranca 236.2 km
Latina 238.9 km
Treviso 240.6 km
Istrana 243.0 km
Frosinone 256.4 km
Brescia aeropuerto 273.0 km
Ghedi Air Base 277.7 km
Pula aeropuerto 278.9 km
Cap Corse 280.1 km
Bastia-Poretta aeropuerto 281.8 km
Plasencia 284.0 km
Pescara 284.6 km
San Giovanni Teatino 286.4 km
Alistro 289.4 km
Aviano Aeropuerto 291.1 km
Portorož 293.4 km
Portorož aeropuerto 293.6 km
Pazin 302.4 km
Isla de Ponza 303.1 km
Codroipo 303.6 km
Paganella 306.6 km
Rolle 308.8 km
Ronchi Legionari 313.4 km
Mali Lošinj 313.4 km
Trieste 317.7 km
Solenzara 321.1 km
City 330.5 km
Bolzano 331.6 km
L'Île-Rousse 339.0 km
Bérgamo-Orio al Serio aeropuerto 339.6 km
Giovi Pass 348.9 km
Genova/Sestri 349.8 km
Rijeka 352.7 km
Rab 354.1 km
Calvi/St Catherine 355.5 km
Rijeka aeropuerto 357.3 km
Toblach aeropuerto 357.5 km
Vojsko 359.6 km
Grazzanise 360.0 km
Postojna 360.8 km
Milán-Linate aeropuerto 361.4 km
Sillian 362.6 km
Kötschach 371.7 km
Kraftwerk Robbia 372.4 km
Campobasso 373.5 km
Figari 374.4 km
Vipiteno 375.4 km
Capo Pertusato 375.4 km
Vogel 375.8 km
Senj 377.2 km
Santa Maria Val Müstair 377.4 km
Zavizan 378.2 km
Ajaccio-Napoleón Bonaparte aeropuerto 378.9 km
Zadar 380.4 km
Paso Bernina 380.7 km
Lienz 381.1 km
Dellach im Drautal 381.5 km
Tarvisio 381.7 km
Gurgl 382.2 km
Olbia 382.5 km
Térmoli 384.9 km
Parg 385.9 km
Kredarica 387.0 km
Weißensee 387.5 km
St. Valentin auf der Haide 388.5 km
Ratece/Planica 389.4 km
Buffalora 389.7 km
Naples/Capodichino 390.2 km