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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 - Potrerillos Distancia
Mendoza Aeropuerto 41.9 km
San Martín 83.7 km
Domingo Faustino Sarmiento aeropuerto 100.1 km
San Rafael Aeropuerto 107.8 km
Malargüe Aeropuerto 110.2 km
Aeródromo Eulogio Sánchez 153.0 km
Santiago de Chile 155.6 km
Quinta Normal 169.8 km
Pudahuel/Arturo Mer aeropuerto 180.7 km
Aeródromo de la Independencia Aeropuerto 185.1 km
Los Olmos 187.5 km
Llay-Llay 194.8 km
Vicuña 202.6 km
El Tololo 210.4 km
Maria Pinto 229.2 km
Catapilco 237.9 km
Ovalle 240.1 km
Curico/Gen Freire aeropuerto 240.5 km
La Serena Aeropuerto 253.6 km
Viña del Mar Aeropuerto 257.4 km
Viña del Mar Aeropuerto 257.4 km
Nicolasa 265.7 km
Coquimbo Pt Tortuga 269.6 km
San Antonio 271.9 km
Santo Domingo 273.8 km
Punta Angeles 275.6 km
Nilahue Cornejo 291.0 km
La Rioja Aeropuerto 300.8 km
San Luis Aeropuerto 313.8 km
La Capilla 332.9 km
Chamical Aeropuerto 338.9 km
Chillán 346.1 km
Huechupin 380.6 km
Catamarca aeropuerto 421.3 km
Villa Reynolds Aeropuerto 422.5 km
Villa Dolores Aeropuerto 451.0 km
Carriel Sur aeropuerto 455.2 km
Bogus Chilean 459.4 km