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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 - Marble Hall Distancia
Oudestad 21.4 km
Mokopane 81.7 km
Witbank 85.2 km
Belfast 107.7 km
Warmbaths/Towoomba 107.8 km
Polokwane aeropuerto 110.2 km
Polokwane Aeropuerto 110.7 km
Lydenburg 131.7 km
Carolina aeropuerto 139.9 km
Tzaneen-Grenshoek 144.1 km
Tzaneen 144.8 km
Air Force Base Waterkloof 146.6 km
Waterkloof 147.3 km
Pretoria/Irene aeropuerto 152.1 km
Goedehoop 158.2 km
Johannesburg/Jan Smuts aeropuerto 163.9 km
Ermelo 166.7 km
Marken 167.8 km
Graskop 172.6 km
Rand aeropuerto 178.5 km
Mara 178.6 km
Lanseria aeropuerto 180.0 km
Heidelberg 183.4 km
Johannesburgo 185.2 km
Mbombela Aeropuerto 186.9 km
Air Force Base Hoedspruit 201.4 km
Hoedspruit 201.4 km
Hoedspruit 203.6 km
Levubu 212.3 km
Lephalale 217.9 km
Thohoyandou 219.5 km
Phalaborwa 229.0 km
Pilanesberg 233.6 km
Piggs Peak Met Stn. 237.5 km
Rustemburgo 239.6 km
Vrede 240.1 km
Frankfort aeropuerto 241.2 km
Skukuza aeropuerto 256.0 km
Mayiwane 260.4 km
Nyonyane 263.5 km
Matsapha aeropuerto 268.8 km
Nhlangano Aeropuerto 283.4 km
Moti 289.5 km
Punda Maria 290.6 km
Komatipoort 294.2 km
Potchefstroom Agric 303.1 km
Vuvulane 307.0 km
Jericho 318.0 km
Vryheid 318.6 km
Siteki 326.7 km
Selebi-Phikwe Aeropuerto 328.1 km
Van Reenen 330.1 km
Mahalapye 334.2 km
Bethlehem aeropuerto 337.8 km
Big Bend Met Stn. 342.8 km
Klerksdorp 343.0 km
Pongola 347.6 km
Kroonstad 348.2 km
Kroonstad 349.5 km
Ndzevane 351.7 km
Ladysmith 352.5 km
Royal Natal Nat. Park 363.5 km
Lichtenburg 367.2 km
Maputo/Mavalane aeropuerto 374.8 km
Sir Seretse Khama aeropuerto 378.9 km
Babanango 390.4 km
Makatini 395.5 km
Ulundi 401.4 km
Ficksburg 407.3 km
Ficksburg 408.0 km
Ottosdal 408.5 km
Lephephe 415.6 km
Francistown Aeropuerto 418.3 km
Mmabatho aeropuerto 427.0 km
Good Hope 434.9 km
Mbazwana aeropuerto 438.5 km
Charters Creek 464.5 km
Mtunzini 466.1 km
Richards Bay Aeropuerto 476.5 km
Xai-Xai 482.5 km
Bloemhof 488.2 km
Masvingo aeropuerto 503.1 km
Glen College 512.6 km
Espungabera 577.1 km
Sua-Pan aeropuerto 577.2 km