Wereld

Afrika



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.


Weerstations in de buurt - Griekwastad Afstand
Postmasburg 56.7 km
Prieska 101.5 km
Kathu 124.3 km
Kuruman 146.5 km
Kimberley Luchthaven 168.9 km
De Aar 201.7 km
Taung 214.4 km
Taung 214.5 km
Van Wyksvlei 221.9 km
Upington Luchthaven 225.3 km
Van Zylsrus 242.2 km
Fauresmith 248.1 km
Bloemhof 290.2 km
Tshabong Luchthaven 300.7 km
Noupoort 303.4 km
Gariepdam 306.1 km
Augrabies Falls 324.5 km
Bloemfontein 327.6 km
Bloemfontein Luchthaven 340.5 km
Glen College 343.4 km
Brandvlei 350.3 km
Werda 366.5 km
Beaufort-Wes 367.3 km
Fraserburg Luchthaven 369.9 km
Graaff-Reinet 370.4 km
Ottosdal 370.4 km
Twee Riviere 382.7 km
Mmabatho Int. Vliegveld 401.6 km
Good Hope 420.8 km
Lichtenburg 425.3 km
Cradock 427.0 km
Wepener 430.5 km
Pofadder 431.4 km
Klerksdorp 434.6 km
Aliwal-Noord Luchthaven 449.7 km
Jamestown 456.5 km
Kroonstad 460.0 km
Jwaneng Airport 460.2 km
Kroonstad 460.9 km
Sutherland 464.5 km
Calvinia Luchthaven 473.0 km
Potchefstroom Agric 475.4 km
Maseru-Mia 482.5 km
Queenstown 506.6 km
Queenstown 509.1 km
Ficksburg 517.6 km
Ficksburg 519.5 km
Tshane Luchthaven 519.6 km
Sir Seretse Khama Intl. Airport 526.8 km
Barkly-Oos 527.6 km
Nieuwoudtville 530.6 km
Fort Beaufort 547.2 km
Rustenburg 548.1 km
Elliot 569.5 km
Pilanesberg 571.2 km
Döhne 596.9 km
Lanseria Intl. Airport 596.9 km
Excelsior Ceres 602.1 km
Bhisho 606.4 km