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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 - Xian de Gangu Distance
Huajialing 41.4 km
Wudu 60.7 km
Beidaoqu 61.5 km
Xian de Zhongning 89.4 km
Langzhong 118.4 km
Mianyang 119.1 km
Yuzhong 135.5 km
Nanchong 145.4 km
Yinchuan 149.7 km
Pingliang 150.4 km
Lanzhou 165.5 km
Chengdu-Shuangliu (Aéroport) 193.5 km
Hanzhong 196.3 km
Wenjiang 201.8 km
Xian de Songpan 205.1 km
Xian de Fengxiang 228.3 km
Yanchi 248.9 km
Xifengzhen 257.9 km
Zoigê 265.3 km
Zoigê 265.3 km
Dachuan 265.7 km
Hezuo 271.0 km
Xian de Minqin 271.9 km
Wushaoling 282.5 km
Xian de Liangping 303.3 km
Wanyuan 312.5 km
Xian de Barkam 353.2 km
Xianyang 376.8 km
Ville-district de Kangding 394.3 km
Xining 402.1 km
Jinghe 404.6 km
Henan 415.6 km
Ankang 417.2 km
Yan'an 467.9 km
Xian de Dawu 478.9 km
Xian de Fengjie 479.7 km
Enshi 483.2 km
Yulin 499.7 km

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