World

South America



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 - Mercedes Distance
Monte Caseros Airport 79.2 km
Paso de los Libres Airport 106.3 km
Uruguaiana 116.4 km
Uruguaiana Airport 120.5 km
Comodoro Pierrestegui Airport 124.8 km
Corrientes 127.6 km
Nueva Hesperides Intl. Airport 130.4 km
Pilar 139.7 km
Resistencia Intl. Airport 148.7 km
Formosa Airport 176.2 km
San Juan Bautista 181.5 km
Reconquista 181.8 km
Paysandú 185.6 km
Artigas Airport 188.7 km
Quyquyhó 213.6 km
São Borja 230.6 km
Gualeguaychú Airport 231.2 km
Paraguarí 235.8 km
Mercedes 239.4 km
Asuncion/Silvio Pet AP 241.7 km
Posadas AP 258.4 km
Caazapá 263.1 km
Encarnación Airport 273.2 km
Villarrica 275.3 km
Alegrete 284.6 km
Cnel.Oviedo 294.0 km
Rivera 300.4 km
Sáenz Peña 302.9 km
Durazno 305.3 km
General Justo José de Urquiza Airport 306.9 km
Sauce Viejo Airport 337.6 km
São Luiz Gonzaga 342.9 km
Capitán Meza 347.5 km
São Luiz Gonzaga 348.7 km
Santiago 354.1 km
Rosario 368.9 km
Dom Pedrito 378.6 km
Santa Rosa 407.2 km
Sao Gabriel 424.2 km
Guaraní Intl. Airport 425.2 km
Guaraní Intl. Airport 425.7 km
Ceres Airport 434.0 km
Santo Ângelo Airport 437.5 km
Cataratas del Iguazú Intl. Airport 453.1 km
Foz do Iguaçu Intl. Airport 455.8 km
Foz do Iguaçu 456.0 km
Bagé Airport 459.8 km
Bagé 461.3 km
Melo Airport 471.7 km
Treinta y Tres Airport 479.8 km
Marcos Juárez Airport 494.5 km