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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.


附近气象站 - 约翰内斯堡 Distance
蘭德機場 19.1 km
Lanseria International Airport 22.4 km
Johannesburg/Jan Smuts Airport 27.4 km
Pretoria/Irene Airport 33.3 km
Waterkloof 39.4 km
Air Force Base Waterkloof 40.0 km
海德堡 54.4 km
勒斯滕堡 98.6 km
Potchefstroom Agric 118.8 km
法蘭克福 機場 122.8 km
Pilanesberg 124.4 km
Warmbaths/Towoomba 128.2 km
威特班克 135.3 km
克萊克斯多普 159.5 km
克龍斯塔德 169.4 km
克龍斯塔德 171.3 km
Oudestad 175.9 km
弗雷德 180.6 km
Goedehoop 188.4 km
利赫滕堡 204.1 km
Bethlehem Airport 209.4 km
莫科帕內 220.9 km
埃爾默洛 223.4 km
Ottosdal 230.5 km
貝爾法斯特 230.8 km
卡羅利納 機場 235.8 km
萊帕拉萊 245.1 km
Marken 253.8 km
菲克斯堡 262.5 km
菲克斯堡 264.0 km
Van Reenen 265.6 km
Royal Natal Nat. Park 269.5 km
波羅克瓦尼 機場 275.7 km
Mmabatho Int. Airport 277.0 km
波羅克瓦尼國際機場 277.4 km
塞雷茨·卡马爵士国际机场 281.0 km
萊登堡 293.6 km
Good Hope 295.9 km
Bloemhof 304.3 km
雷地史密斯 306.8 km
Tzaneen-Grenshoek 326.7 km
察嫩 328.7 km
马塞卢 328.9 km
内尔斯普雷特 機場 330.4 km
馬哈拉佩 331.2 km
Glen College 333.6 km
Graskop 338.5 km
Mara 340.7 km
埃斯特科特 347.9 km
Giant's Castle 347.9 km
布隆方丹 機場 348.1 km
弗萊海德 349.6 km
恩赫蘭加諾 機場 355.9 km
布隆方丹 356.9 km
Piggs Peak Met Stn. 362.3 km
Lephephe 365.8 km
曼齊尼機場 369.2 km
Wepener 369.8 km
Mooi River 371.9 km
胡德斯普雷特 379.3 km
Air Force Base Hoedspruit 379.3 km
胡德斯普雷特 381.7 km
Nyonyane 384.1 km
Moti 385.1 km
Shaleburn 385.8 km
塔翁 386.0 km
塔翁 386.0 km
Mayiwane 390.6 km
Levubu 391.8 km
Jericho 395.1 km
索赫燕杜 400.2 km
Jwaneng Airport 402.0 km
塞莱比-皮奎 機場 402.9 km
格雷鎮 406.0 km
帕拉博魯瓦 411.4 km
Cedara 415.7 km
Skukuza Airport 416.3 km
Babanango 417.4 km
蓬戈拉 419.0 km
彼得马里茨堡 431.2 km
彼得马里茨堡 機場 432.4 km
Vuvulane 432.6 km
烏倫迪 435.8 km
Komatipoort 438.4 km
錫泰基 440.6 km
Big Bend Met Stn. 441.4 km
金伯利機場 446.5 km
Ndzevane 447.1 km
伊索波 452.2 km
科克斯塔德 452.4 km
Fauresmith 467.6 km
東巴克利 473.1 km
Punda Maria 474.3 km
北阿利瓦爾 機場 475.9 km
曼迪尼 476.8 km
Makatini 480.6 km
沙卡國王國際機場 482.6 km
艾基康山 483.2 km
Virginia Airport 488.7 km

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