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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 - Canton Distance
Canton Aéroport 11.6 km
Xian de Fogang 41.6 km
Taipa Aéroport 52.1 km
Shenzhen Bao'an (Aéroport) 59.9 km
Hong Kong 77.7 km
Shaoguan 80.3 km
Shan de Lau Fau 81.7 km
Shangchuandao 85.1 km
Île de Cheung Chau 90.0 km
Shenzhen 92.8 km
Gaoyao 92.8 km
Ta Kwu Ling 98.4 km
Sha Tin 105.4 km
Chenzhou 120.5 km
Lianzhou 124.5 km
Xian de Lianping 143.0 km
Heyuan 156.4 km
Yangjiang 158.0 km
Nanyue 193.1 km
Ganzhou 221.4 km
Wuzhou 223.1 km
Lingling 229.1 km
Shanwei 230.6 km
Yichun 242.1 km
Ji'an 259.3 km
Xinyi 265.5 km
Shaoyang 268.0 km
Xian de Xunwu 274.7 km
Xian de Mengshan 313.0 km
Xian de Mei 318.2 km
Zhanjiang 332.4 km
Wugang 332.4 km
Haikou Aéroport 342.9 km
Guilin 346.1 km
Haikou 352.5 km
Qionghai 354.3 km
Guiping 358.2 km
Changting 364.2 km
Shantou 374.9 km
Jieyang Chaoshan (Aéroport) 376.8 km
Xian de Guangchang 379.6 km
Dongsha Dao 397.6 km
Tongdao 410.5 km
Xian de Nancheng 427.3 km
Liuzhou 436.9 km
Shan Xian 438.9 km
Zhijiang 439.2 km
Zhangping 467.9 km
Yong'an 470.5 km
Beihai 472.2 km
Shaowu 505.0 km

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