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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 - Rancagua Distancia
Aeródromo de la Independencia Aeropuerto 1.0 km
Los Olmos 19.8 km
Quinta Normal 28.1 km
Pudahuel/Arturo Mer aeropuerto 28.8 km
Santiago de Chile 33.6 km
Aeródromo Eulogio Sánchez 37.3 km
Llay-Llay 50.3 km
Maria Pinto 55.4 km
Curico/Gen Freire aeropuerto 57.9 km
Catapilco 82.9 km
Viña del Mar Aeropuerto 90.7 km
San Antonio 95.1 km
Santo Domingo 96.1 km
Punta Angeles 105.8 km
Nilahue Cornejo 107.3 km
Ovalle 138.0 km
Malargüe Aeropuerto 141.0 km
El Tololo 146.6 km
Vicuña 152.8 km
La Capilla 154.6 km
Chillán 165.0 km
Huechupin 197.9 km
Mendoza Aeropuerto 225.6 km
Aeródromo Maquehue 262.6 km
San Rafael Aeropuerto 264.0 km
San Martín 264.9 km
Araucania 267.9 km
Carriel Sur aeropuerto 271.3 km
Bogus Chilean 275.4 km
Domingo Faustino Sarmiento aeropuerto 280.1 km
Neuquén Aeropuerto 347.4 km
Isla Mocha 376.3 km
San Luis Aeropuerto 493.0 km
Chamical Aeropuerto 522.3 km

Estado actual