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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 - Kempton Park Distancia
Johannesburg/Jan Smuts AP 1.5 km
Rand Airport 14.1 km
Pretoria/Irene AP 21.3 km
Johannesburg 26.0 km
Waterkloof 29.5 km
Air Force Base Waterkloof 29.8 km
Lanseria Intl. Airport 39.2 km
Heidelberg 40.4 km
Witbank 109.7 km
Frankfort Airport 114.9 km
Rustenburg 121.1 km
Warmbaths/Towoomba 121.4 km
Potchefstroom Agric 142.7 km
Pilanesberg 142.8 km
Oudestad 153.6 km
Vrede 164.0 km
Klerksdorp 183.7 km
Kroonstad 185.0 km
Kroonstad 186.6 km
Goedehoop 187.9 km
Ermelo 198.0 km
Belfast 205.0 km
Mokopane 207.3 km
Bethlehem Airport 207.8 km
Carolina Airport 209.8 km
Lichtenburg 230.1 km
Lephalale 248.1 km
Marken 248.8 km
Van Reenen 252.7 km
Ottosdal 255.9 km
Polokwane Airport 260.1 km
Polokwane Intl. Airport 261.5 km
Royal Natal Nat. Park 261.7 km
Ficksburg 266.2 km
Ficksburg 267.5 km
Lydenburg 268.7 km
Ladysmith 292.0 km
Sir Seretse Khama Intl. Airport 301.9 km
Mmabatho (IAP) 302.6 km
Mbombela Airport 304.6 km
Tzaneen-Grenshoek 307.5 km
Tzaneen 309.0 km
Graskop 313.6 km
Good Hope 320.8 km
Mara 326.4 km
Vryheid 327.4 km
Bloemhof 327.9 km
Nhlangano Airport 331.2 km
Estcourt 334.0 km
Maseru-Mia 335.1 km
Piggs Peak Met Stn. 336.3 km
Giant's Castle 337.2 km
Mahalapye 340.8 km
Matsapha Airport 343.6 km
Glen College 349.8 km
Hoedspruit 355.5 km
Air Force Base Hoedspruit 355.5 km
Hoedspruit 357.9 km
Mooi River 358.0 km
Nyonyane 358.1 km
Moti 359.6 km
Bloemfontein Airport 364.0 km
Mayiwane 364.5 km
Jericho 370.4 km
Bloemfontein 373.3 km
Levubu 373.9 km
Shaleburn 377.6 km
Wepener 379.3 km
Thohoyandou 381.9 km
Lephephe 382.0 km
Phalaborwa 388.4 km
Greytown 388.9 km
Skukuza Airport 390.8 km
Pongola 394.7 km
Babanango 396.1 km
Cedara 401.3 km
Selebi-Phikwe Airport 402.9 km
Vuvulane 406.6 km
Taung 410.9 km
Taung 410.9 km
Komatipoort 412.5 km
Ulundi 414.0 km
Siteki 414.7 km
Big Bend Met Stn. 416.0 km
Pietermaritzburg 416.6 km
Pietermaritzburg Airport 417.9 km
Ndzevane 421.8 km
Jwaneng Airport 425.4 km
Ixopo 440.6 km
Kokstad 445.3 km
Punda Maria 454.8 km
Makatini 455.8 km
Mandeni 457.3 km
King Shaka Intl. Airport 465.1 km
Mount Edgecombe 466.2 km
Kimberley Airport 468.5 km
Mtunzini 471.9 km
Virginia Airport 471.9 km
Barkly East 477.4 km
Maputo/Mavalane AP 482.8 km

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