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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.


Nearby Weather Stations - Tongshan Distance
Xiushui 27.8 km
Wuhan 61.9 km
Yichun 83.9 km
Macheng 90.2 km
Xinyang 126.3 km
Ji'an 126.8 km
Yueyang 158.0 km
Zhumadian 164.5 km
Nanchang 164.7 km
Lushan 165.1 km
Gushi 177.6 km
Ganzhou 181.6 km
Changsha Airport 191.8 km
Xihua 193.2 km
Fuyang 206.5 km
Huoshan 221.4 km
Nanyue 225.0 km
Zhongxiang 226.2 km
Zaoyang 233.5 km
Chenzhou 236.0 km
Guangchang 242.7 km
Bozhou 246.7 km
Nancheng 258.2 km
Jingzhou 259.9 km
Nanyang 262.3 km
Changting 274.4 km
Anqing 287.4 km
Jingdezhen 300.9 km
Changde 314.5 km
Hefei 323.5 km
Laohekou 337.9 km
Shaowu 348.2 km
Lingling 352.8 km
Shaoyang 352.9 km
Bengbu 358.3 km
Yichang 359.4 km
Yong'an 363.1 km
Zhangping 384.6 km
Wuyishan 403.5 km
Huangshan 407.2 km
Fang Xian 428.4 km
Nanping 433.3 km
Wuhu 437.1 km
Jiuxian Shan 444.0 km
Wugang 447.4 km
Pucheng/FUJ 456.7 km
Yuanling 458.9 km
Sangzhi 482.5 km
Quzhou 487.1 km
Nanjing 493.4 km
Nanjing Airport 494.4 km
Guilin 501.1 km

Current weather