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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.


Poblíž povětrnostní stanice - Saldanha Vzdálenost
Langebaan 12.8 km
Cape Columbine 19.9 km
Langebaanweg (Letiště) 26.2 km
Geelbek 29.4 km
Robben 97.4 km
Malmesbury 100.2 km
Table Bay 110.3 km
Lambert's Bay 111.5 km
Molteno Reservior 112.5 km
Air Force Base Ysterplaat 114.2 km
Letiště Kapské Město 126.3 km
Slangkop 128.9 km
Clanwilliam 137.3 km
Paarl 137.7 km
Vredendal (Letiště) 154.5 km
Cape Point 156.1 km
Strand 158.6 km
Excelsior Ceres 166.7 km
Vyeboom 175.0 km
Worcester 182.7 km
Worcester 182.7 km
Hermanus 208.0 km
Nieuwoudtville 217.1 km
Robertson 234.6 km
Riviersonderend 250.3 km
Calvinia (Letiště) 260.3 km
Střelkový mys 301.7 km
Struisbaai 303.8 km
Koingnaas 305.8 km
Sutherland 311.1 km
Laingsburg 327.2 km
Porterville 336.2 km
Springbok (Letiště) 353.1 km
Ladismith 375.8 km
Riversdale 386.3 km
Brandvlei 389.2 km
Stilbaai 409.9 km
Fraserburg (Letiště) 414.7 km
Port Nolloth 417.4 km
Pofadder 438.6 km
Vanwyksvlei 513.6 km