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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 - Klerksdorp Distancia
Klerksdorp 11.6 km
Potchefstroom Agric 52.8 km
Ottosdal 67.3 km
Lichtenburg 91.4 km
Kroonstad 100.1 km
Kroonstad 103.7 km
Bloemhof 134.2 km
Rustemburgo 141.8 km
Mmabatho aeropuerto 164.3 km
Johannesburgo 170.9 km
Lanseria aeropuerto 174.1 km
Pilanesberg 176.9 km
Rand aeropuerto 182.8 km
Johannesburg/Jan Smuts aeropuerto 196.3 km
Good Hope 197.2 km
Heidelberg 198.5 km
Pretoria/Irene aeropuerto 202.9 km
Glen College 206.7 km
Waterkloof 207.0 km
Air Force Base Waterkloof 207.7 km
Frankfort aeropuerto 212.8 km
Taung 216.0 km
Taung 216.0 km
Bloemfontein Aeropuerto 222.1 km
Bloemfontein 226.3 km
Bethlehem aeropuerto 233.0 km
Ficksburg 237.4 km
Ficksburg 239.9 km
Sir Seretse Khama aeropuerto 247.2 km
Maseru-Mia 273.3 km
Warmbaths/Towoomba 274.8 km
Kimberley Aeropuerto 280.6 km
Wepener 285.3 km
Vrede 288.7 km
Witbank 304.4 km
Goedehoop 307.3 km
Royal Natal Nat. Park 313.5 km
Jwaneng aeropuerto 316.8 km
Fauresmith 321.3 km
Van Reenen 340.0 km
Lephalale 340.6 km
Oudestad 346.3 km
Kuruman 356.9 km
Lephephe 363.3 km
Mokopane 375.6 km
Ermelo 376.8 km
Mahalapye 380.1 km
Marken 380.6 km
Gariep Dam 382.8 km
Ladysmith 386.9 km
Aliwal North aeropuerto 388.8 km
Giant's Castle 397.8 km
Carolina aeropuerto 398.1 km
Belfast 398.5 km
Werda 409.4 km
Kathu 410.0 km
Barkly East 414.4 km
Shaleburn 416.2 km
Estcourt 417.9 km
Postmasburg 420.9 km
Polokwane Aeropuerto 433.5 km
Polokwane aeropuerto 436.0 km
Mooi River 439.4 km
Lydenburg 463.9 km
Kokstad 470.1 km
Tsabong Aeropuerto 471.7 km
Vryheid 473.6 km
De Aar 476.7 km
Cedara 482.7 km
Tzaneen-Grenshoek 491.6 km
Greytown 492.1 km
Mara 493.4 km
Tzaneen 494.8 km
Mbombela Aeropuerto 497.5 km
Selebi-Phikwe Aeropuerto 497.9 km
Pietermaritzburgo 498.8 km
Ixopo 498.8 km
Pietermaritzburgo Aeropuerto 499.7 km
Van Zylsrus 508.4 km
Graskop 508.8 km
Prieska 514.9 km
Levubu 553.2 km
Paddock 554.1 km
Thohoyandou 562.4 km
Sezela 565.8 km
Margate 566.1 km