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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 - Ριέτι Απόσταση
Ριέτι 1.1 km
Monte Terminillo 15.8 km
Guidonia Montecelio 47.1 km
Rome/Urbe 63.6 km
Ciampino 74.9 km
Vigna Di Valle 79.9 km
Περούτζα 82.2 km
Βιτέρμπο 89.1 km
Latina 94.2 km
Pratica di Mare 95.3 km
Αεροδρόμιο της Ρώμης-Φιουμιτσίνο 95.5 km
Φροζινόνε 98.6 km
Frontone 120.2 km
Civitavecchia 120.6 km
Radicofani 131.6 km
Ancona/Falconara 142.2 km
Πεσκάρα 150.3 km
San Giovanni Teatino 151.6 km
Αρέτσο 159.5 km
Πόντσα 163.1 km
Ρίμινι 176.1 km
Monte Argentario 187.1 km
Grazzanise 200.6 km
Γκροσσέτο 201.8 km
Cervia 205.4 km
Φορλί 212.6 km
Καμπομπάσσο 220.4 km
Point Marina/Ravenna 229.2 km
Naples/Capodichino 230.7 km
Firenze/Peretola 237.5 km
Τέρμολι 243.5 km
Κάπρι 251.8 km
Monte Calamita 274.9 km
Calamita 277.1 km
Bologna/Borgo 287.9 km
Mali Lošinj 291.2 km
Pula Airport 294.3 km
Φερράρα 296.6 km
Salerno Costa d'Amalfi Airport 300.6 km
Trevico 303.6 km
Πίζα 307.4 km
Monte Cimone 307.9 km
Foggia "Gino Lisa" Airport 317.2 km
Ζάνταρ 321.0 km
Pazin 329.2 km
Ραμπ 331.5 km
Zadar Airport 332.6 km
Amendola 333.0 km
Αεροδρόμιο Μάρκο Πόλο της Βενετίας 339.9 km
Portorož Airport 342.2 km
Padua Airport 342.6 km
Portorož 345.3 km
Zavizan 351.6 km
Monte Sant'Angelo 353.2 km
Αεροδρόμιο της Ριέκα 358.3 km
Τρεβίζο 359.1 km
Senj 359.2 km
Ριέκα 362.3 km
Gospić 362.7 km
Τεργέστη 364.3 km
Istrana 364.7 km
Komiža 366.7 km
Sarzana/Luni 367.3 km
Alistro 369.6 km
Σίμπενικ 369.7 km
Vieste 373.4 km
Bastia - Poretta Airport 375.0 km
Ronchi Legionari 375.2 km
Παλαγκρούζα 377.7 km
Codroipo 386.7 km
City 387.4 km
Πάρμα 387.5 km
Solenzara 387.9 km
Villafranca 391.4 km
Cap Corse 392.1 km
Postojna 392.1 km
Αβιάνο Αεροδρόμιο 393.2 km
Parg 396.6 km
Αεροδρόμιο του Σπλιτ 402.8 km
Ούστικα 404.0 km
Ogulin 406.3 km
Όλμπια 406.3 km
Vojsko 408.0 km
Χβαρ 408.8 km
Kočevje 414.3 km
Marjan 415.1 km
Capo Pertusato 424.0 km
Μπίχατς 425.4 km
Črnomelj 425.8 km
Figari 429.5 km
Vogel 431.0 km
Brescia Airport 431.9 km
Topol pri Medvodah 432.3 km
Latronico 433.0 km
Λιουμπλιάνα 435.9 km
Ghedi Air Base 436.8 km
L'Île-Rousse 438.5 km
Rolle 438.7 km
Πιατσέντσα 441.4 km
Capo Bellavista 442.2 km