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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.


Stations météo à proximité - Marydale Distance
Prieska 75.7 km
Vanwyksvlei 103.0 km
Upington Aéroport 137.7 km
Postmasburg 153.6 km
Kathu 204.4 km
Brandvlei 211.3 km
Chutes d'Augrabies 212.2 km
De Aar 247.2 km
Kuruman 251.5 km
Van Zylsrus 259.7 km
Fraserburg Aéroport 268.1 km
Kimberley Aéroport 303.1 km
Pofadder 303.7 km
Beaufort West 307.9 km
Calvinia Aéroport 337.1 km
Twee Riviere 346.0 km
Tsabong Aéroport 347.3 km
Sutherland 348.0 km
Taung 351.9 km
Taung 351.9 km
Porterville 353.5 km
Fauresmith 360.0 km
Noupoort 365.8 km
Prince Albert 390.4 km
Nieuwoudtville 391.6 km
Graaff-Reinet 395.3 km
Barrage de Gariep 399.2 km
Laingsburg 416.9 km
Willowmore 427.9 km
Bloemhof 430.1 km
Ladismith 434.0 km
Werda 443.4 km
Bloemfontein 455.4 km
Clanwilliam 460.0 km
Vredendal Aéroport 465.4 km
Bloemfontein Aéroport 468.5 km
Glen College 473.5 km
Excelsior Ceres 475.1 km
Cradock 482.2 km
Joubertina 495.0 km
Lambert's Bay 501.4 km
Ottosdal 508.9 km
Robertson 518.7 km
Worcester 527.7 km
Worcester 527.7 km
Mmabatho Int. (Aéroport) 530.7 km
Keetmanshoop Aéroport 535.1 km
Patensie 538.7 km
Good Hope 546.1 km
Somerset East 547.9 km
Aliwal North Aéroport 551.0 km
Jamestown 551.3 km
Lichtenburg 561.2 km
Malmesbury 567.3 km
Paarl 569.3 km
Uitenhage 574.0 km
Klerksdorp 574.4 km
Langebaanweg (Aéroport) 575.0 km
Parc national des Éléphants d'Addo 578.0 km
Queenstown 587.9 km
Queenstown 590.3 km
Geelbek 595.2 km
Langebaan 595.7 km
Port of Ngqura 599.0 km
Port Elizabeth Aéroport 609.0 km
Fort Beaufort 610.1 km
Aéroport international du Cap 615.5 km
Air Force Base Ysterplaat 617.4 km
Robben 619.5 km
Baie de la Table 622.3 km
Molteno Reservior 627.0 km
Grahamstown 628.5 km
Port Alfred Aéroport 678.7 km