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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.


Nearby Weather Stations - Klipplaat Απόσταση
Graaff-Reinet 86.2 km
Patensie 93.1 km
Willowmore 96.7 km
Joubertina 97.9 km
Tsitsikamma National Park 114.0 km
St Francis Bay 132.1 km
Uitenhage 140.6 km
Somerset East 154.3 km
Plettenberg Bay 156.6 km
Addo Elephant National Park 163.3 km
Cradock 166.6 km
Port of Ngqura 168.6 km
Πορτ Ελίζαμπεθ Αεροδρόμιο 173.0 km
Knysna 174.5 km
Noupoort 197.8 km
Beaufort West 209.9 km
George Airport 239.9 km
Makhanda 242.7 km
De Aar 243.2 km
Fort Beaufort 257.1 km
Prince Albert 258.5 km
Mossel Bay Airport 270.8 km
Gariep Dam 284.0 km
Port Alfred Airport 288.8 km
Queenstown 303.5 km
Queenstown 304.6 km
Bhisho 328.6 km
Fraserburg Airport 333.2 km
Jamestown 334.4 km
Ladismith 344.0 km
Fauresmith 346.1 km
Döhne 352.4 km
Stilbaai 356.4 km
Riversdale 360.3 km
Aliwal North Airport 360.7 km
Prieska 385.5 km
Laingsburg 386.4 km
King Phalo Airport 389.6 km
Vanwyksvlei 391.2 km
Sutherland 413.3 km
Barkly East 419.2 km
Elliot 426.1 km
Μπλουμφοντέιν 443.3 km
Wepener 445.9 km
Μπλουμφοντέιν Αεροδρόμιο 450.8 km
Brandvlei 502.5 km
Mthatha 504.5 km
Maseru-Mia 505.6 km
Struisbaai 509.3 km
Ακρωτήριο Αγκούλιας 515.7 km