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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 - 韦洛尔 Distance
韦洛尔 3.7 km
丘德达帕 45.9 km
蒂魯吉拉帕利國際機場 64.0 km
Arogyavaram 69.9 km
古德洛尔 76.1 km
Pamban 76.8 km
Rentachintala 89.3 km
开利开尔 89.5 km
纳加帕蒂南 92.6 km
內洛爾 101.3 km
塞勒姆 109.3 km
奥恩戈莱 116.8 km
金奈机场 118.8 km
Mannar 119.4 km
賈夫納 119.9 km
Puttalam 127.3 km
马杜赖 132.5 km
卡努爾 133.0 km
Bangalore / Hindustan 161.8 km
阿努拉达普拉机场 170.6 km
班加羅爾 170.7 km
阿纳恩塔普尔 171.6 km
Vavuniya 174.4 km
Maha Illuppallama 177.5 km
Palayamkottai 178.4 km
Vijayawada Airport 199.7 km
賴久爾 212.4 km
哥印拜陀 234.1 km
默吉利伯德讷姆 234.8 km
亭可马里 251.2 km
贝拉里 257.5 km
特里凡得琅 機場 261.8 km
乌塔卡蒙德 267.6 km
迈索尔 269.4 km
Chitradurga 300.3 km
柯枝 機場 309.1 km
阿勒皮 310.8 km
Willingdon 324.9 km
卡基纳达 354.3 km
科泽科德 373.2 km
马迪凯里 376.8 km
比贾布尔 389.9 km
加达格-贝蒂盖里 392.4 km

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