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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 - Vredendal Distancia
Vredendal aeropuerto 0.0 km
Lambert's Bay 42.9 km
Clanwilliam 69.0 km
Nieuwoudtville 73.9 km
Langebaanweg aeropuerto 142.3 km
Calvinia aeropuerto 142.6 km
Cape Columbine 143.0 km
Langebaan 159.1 km
Geelbek 167.6 km
Excelsior Ceres 171.3 km
Porterville 182.3 km
Malmesbury 191.4 km
Koingnaas 206.1 km
Springbok Aeropuerto 221.8 km
Paarl 222.3 km
Isla Robben 225.8 km
Worcester 231.8 km
Worcester 231.8 km
Air Force Base Ysterplaat 235.8 km
Bahía de la Mesa 235.9 km
Molteno Reservior 240.0 km
Ciudad del Cabo aeropuerto 243.0 km
Sutherland 252.6 km
Brandvlei 254.2 km
Vyeboom 261.3 km
Slangkop 263.1 km
Strand 264.8 km
Robertson 273.1 km
Cabo Point 283.3 km
Pofadder 284.3 km
Hermanus 302.2 km
Riviersonderend 304.0 km
Laingsburg 308.6 km
Port Nolloth 315.7 km
Vioolsdrif 329.6 km
Fraserburg aeropuerto 336.8 km
Ladismith 363.8 km
Struisbaai 372.6 km
Cabo de las Agujas 373.1 km
Cataratas Augrabies 381.6 km
Vanwyksvlei 394.0 km
Alexander Bay 395.2 km
Riversdale 397.1 km
Prince Albert 422.3 km
Stilbaai 427.6 km
Beaufort West 456.4 km
Upington Aeropuerto 458.9 km
Mosselbaai Aeropuerto 483.8 km
George aeropuerto 496.9 km
Prieska 515.2 km