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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 - Plettenberg Bay Distancia
Plettenberg Bay 1.7 km
Knysna 26.2 km
Tsitsikamma National Park 65.1 km
Joubertina 66.3 km
Willowmore 84.2 km
George aeropuerto 104.1 km
Mosselbaai Aeropuerto 130.3 km
St Francis Bay 169.3 km
Patensie 170.1 km
Prince Albert 171.7 km
Beaufort West 197.1 km
Stilbaai 217.2 km
Riversdale 230.1 km
Ladismith 235.0 km
Graaff-Reinet 235.7 km
Uitenhage 238.8 km
Puerto Elizabeth Aeropuerto 256.2 km
Port of Ngqura 263.4 km
Parque nacional de los Elefantes de Addo 278.4 km
Somerset East 287.2 km
Laingsburg 287.5 km
Fraserburg aeropuerto 299.8 km
Cradock 321.3 km
Sutherland 343.2 km
Noupoort 346.2 km
De Aar 358.2 km
Grahamstown 363.5 km
Struisbaai 369.3 km
Cabo de las Agujas 375.5 km
Riviersonderend 380.2 km
Robertson 381.5 km
Fort Beaufort 391.8 km
Port Alfred Aeropuerto 400.3 km
Vanwyksvlei 418.5 km
Worcester 431.3 km
Worcester 431.3 km
Gariep Dam 436.3 km
Excelsior Ceres 447.9 km
Queenstown 452.3 km
Queenstown 453.1 km
Bhisho 457.3 km
Hermanus 457.9 km
Vyeboom 463.8 km
Calvinia aeropuerto 479.1 km
Döhne 488.1 km
Brandvlei 488.8 km
Jamestown 489.7 km
King Phalo aeropuerto 513.7 km
Aliwal North aeropuerto 516.8 km
Nieuwoudtville 549.7 km
Barkly East 572.3 km
Elliot 575.2 km