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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.


Estações Meteorológicas Próximas - Xi Xian/HEN Distância
Macheng 60.4 km
Xihua 70.7 km
Xinyang 76.7 km
Zhumadian 85.2 km
Wuhan 104.1 km
Gushi 104.3 km
Fuyang 114.0 km
Bozhou 136.1 km
Xiushui 154.9 km
Dingtao 158.5 km
Zhengzhou 161.8 km
Anyang 178.9 km
Huoshan 183.8 km
Lushan 191.7 km
Chaocheng 198.3 km
Nanchang 221.8 km
Yueyang 227.2 km
Zaoyang 230.2 km
Nanyang 241.3 km
Zhongxiang 246.9 km
Anqing 272.6 km
Changsha Aeroporto 278.1 km
Mengjin 278.8 km
Hefei 279.3 km
Yanzhou 282.4 km
Xuzhou 285.0 km
Bengbu 294.6 km
Yangcheng 294.7 km
Jingzhou 297.6 km
Jingdezhen 312.2 km
Tai'an 324.5 km
Jinan 330.3 km
Laohekou 341.4 km
Changde 369.0 km
Fei Xian 385.6 km
Yichang 388.9 km
Montanhas Huangshan 395.8 km
Wuhu 405.8 km
Lushi 418.4 km
Yiyuan 425.0 km
Yuncheng 429.6 km
Fang Xian 441.8 km
Nanquim Aeroporto 452.9 km
Nanquim 453.0 km
Quzhou 490.3 km
Yuanling 509.9 km
Sangzhi 523.4 km
Huayin 525.4 km

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