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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 - Brandvlei Distancia
Brandvlei 0.0 km
Calvinia aeropuerto 131.5 km
Vanwyksvlei 148.9 km
Porterville 174.3 km
Nieuwoudtville 180.3 km
Pofadder 185.6 km
Fraserburg aeropuerto 189.6 km
Cataratas Augrabies 195.1 km
Sutherland 200.8 km
Upington Aeropuerto 230.4 km
Clanwilliam 252.3 km
Vredendal aeropuerto 254.2 km
Prieska 263.8 km
Excelsior Ceres 286.2 km
Laingsburg 287.9 km
Lambert's Bay 290.4 km
Springbok Aeropuerto 299.6 km
Beaufort West 301.6 km
Ladismith 327.7 km
Prince Albert 329.5 km
Worcester 348.4 km
Worcester 348.4 km
Robertson 354.3 km
Koingnaas 357.3 km
Postmasburg 362.4 km
Langebaanweg aeropuerto 368.1 km
Vioolsdrif 370.9 km
Malmesbury 371.0 km
Paarl 380.1 km
Cape Columbine 384.5 km
Riversdale 385.7 km
Langebaan 388.6 km
Geelbek 389.7 km
Riviersonderend 390.1 km
De Aar 391.9 km
Kathu 402.8 km
Vyeboom 403.5 km
Van Zylsrus 410.6 km
Twee Riviere 417.2 km
Stilbaai 417.7 km
Isla Robben 421.8 km
Air Force Base Ysterplaat 422.5 km
Ciudad del Cabo aeropuerto 422.8 km
Port Nolloth 423.1 km
George aeropuerto 424.3 km
Bahía de la Mesa 426.5 km
Strand 426.8 km
Mosselbaai Aeropuerto 427.7 km
Molteno Reservior 431.2 km
Hermanus 438.6 km
Willowmore 444.1 km
Struisbaai 454.9 km
Kuruman 454.9 km
Slangkop 455.8 km
Cabo de las Agujas 459.0 km
Cabo Point 463.4 km
Knysna 470.0 km
Alexander Bay 483.3 km
Graaff-Reinet 486.5 km
Keetmanshoop Aeropuerto 490.0 km
Plettenberg Bay 490.5 km
Noupoort 502.6 km
Kimberley Aeropuerto 506.6 km
Tsabong Aeropuerto 507.2 km
Joubertina 512.1 km
Tsitsikamma National Park 528.9 km
Taung 563.1 km
Taung 563.1 km
Patensie 589.5 km
St Francis Bay 617.6 km