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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 - Perugia Distance
Perugia 0.0 km
Frontone 53.5 km
Rieti 81.3 km
Arezzo 83.5 km
Radicofani 84.0 km
Monte Terminillo 85.9 km
Viterbo 86.7 km
Rimini 102.5 km
Ancona/Falconara 112.5 km
Vigna Di Valle 113.7 km
Guidonia Montecelio 120.5 km
Rome/Urbe 122.8 km
Cervia 125.9 km
Forlì 130.7 km
Civitavecchia 136.2 km
Ciampino 141.6 km
Fiumicino Airport 142.5 km
Point Marina/Ravenna 150.2 km
Pratica di Mare 156.0 km
Grosseto 163.6 km
Florence/Peretola 164.4 km
Monte Argentario 166.4 km
Latina 172.4 km
Frosinone 180.8 km
Pescara 201.9 km
San Giovanni Teatino 203.6 km
Bologna/Borgo 206.9 km
Ferrara 214.4 km
Monte Cimone 234.1 km
Monte Calamita 236.9 km
Calamita 239.1 km
Ponza 240.5 km
Pisa 244.6 km
Pula Airport 253.0 km
Padua Airport 261.9 km
Venice Marco Polo Airport 263.4 km
Mali Lošinj 269.4 km
Grazzanise 281.0 km
Treviso 281.3 km
Pazin 283.8 km
Istrana 286.3 km
Portorož Airport 287.6 km
Portorož 289.4 km
Campobasso 290.2 km
Sarzana/Luni 300.7 km
Termoli 301.9 km
Villafranca 309.7 km
Naples/Capodichino 310.6 km
Parma 310.9 km
Trieste 311.1 km
Rab 311.1 km
Ronchi Legionari 316.0 km
Codroipo 319.9 km
Aviano Airport 320.2 km
Zadar 321.8 km
Rijeka 326.0 km
Rijeka Airport 326.2 km
City 330.5 km
Capri 333.3 km
Zavizan 334.0 km
Zadar Airport 335.7 km
Senj 337.0 km
Bastia - Poretta Airport 340.8 km
Alistro 342.1 km
Postojna 346.3 km
Cap Corse 347.9 km
Brescia Airport 351.9 km
Vojsko 355.0 km
Gospić 356.3 km
Ghedi Air Base 357.0 km
Rolle 359.0 km
Parg 360.6 km
Piacenza 367.4 km
Solenzara 367.9 km
Paganella 371.9 km
Trevico 375.3 km
Vogel 375.6 km
Salerno Costa d'Amalfi Airport 378.2 km
Kočevje 381.4 km
Foggia "Gino Lisa" Airport 382.0 km
Ogulin 385.0 km
Topol pri Medvodah 386.7 km
Šibenik 386.8 km
Kredarica 388.0 km
Tarvisio 389.7 km
Bolzano 390.3 km
Ljubljana 392.9 km
Kötschach 394.2 km
Ratece/Planica 394.4 km
Amendola 395.2 km
Toblach Airport 397.3 km
Sillian 398.2 km
Črnomelj 398.8 km
Komiža 399.3 km
Lesce-Bled Airport 401.4 km
L'Île-Rousse 401.9 km
Dellach im Drautal 402.4 km
Dobratsch 403.4 km
Weissensee 403.8 km
Ljubljana Jože Pučnik Airport 404.4 km