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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 - Langebaan Distancia
Geelbek 16.6 km
Langebaanweg aeropuerto 20.8 km
Cape Columbine 32.3 km
Isla Robben 85.2 km
Malmesbury 87.8 km
Bahía de la Mesa 98.0 km
Molteno Reservior 100.4 km
Air Force Base Ysterplaat 101.7 km
Ciudad del Cabo aeropuerto 113.7 km
Lambert's Bay 116.5 km
Slangkop 117.7 km
Paarl 125.1 km
Clanwilliam 136.3 km
Cabo Point 144.3 km
Strand 145.9 km
Excelsior Ceres 157.9 km
Vredendal aeropuerto 159.1 km
Vyeboom 162.2 km
Worcester 170.9 km
Worcester 170.9 km
Hermanus 195.3 km
Nieuwoudtville 219.0 km
Robertson 222.8 km
Riviersonderend 238.0 km
Calvinia aeropuerto 258.7 km
Cabo de las Agujas 288.9 km
Struisbaai 291.0 km
Sutherland 304.0 km
Koingnaas 316.6 km
Laingsburg 317.5 km
Porterville 341.3 km
Springbok Aeropuerto 362.0 km
Ladismith 365.4 km
Riversdale 374.9 km
Brandvlei 388.6 km
Stilbaai 398.2 km
Fraserburg aeropuerto 408.3 km
Port Nolloth 428.4 km
Pofadder 443.4 km
Prince Albert 445.4 km
Mosselbaai Aeropuerto 474.3 km
George aeropuerto 495.8 km
Beaufort West 510.4 km
Vanwyksvlei 510.6 km
Prieska 634.6 km