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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.


Estaciones meteorológicas cercanas - Tirukoilur Distancia
Vellore 20.9 km
Pamban 55.4 km
Tiruchirappalli aeropuerto 57.6 km
Cuddalore 65.0 km
Kadapa 66.7 km
Karaikal 75.2 km
Nagapattinam 77.9 km
Arogyavaram 83.5 km
Mannar 101.0 km
Nellore 102.4 km
Jaffna 103.5 km
Puttalam 107.1 km
Chennai aeropuerto 113.3 km
Salem 113.3 km
Ongole 120.9 km
Katunayake 123.9 km
Madurai 129.8 km
Kurnool 150.5 km
Anuradhapura Aeropuerto 154.5 km
Kurunegala 158.5 km
Vavuniya 159.3 km
Maha Illuppallama 161.3 km
Bangalore / Hindustan 170.7 km
Palayamkottai 174.7 km
Bangalore 179.6 km
Kandy 184.6 km
Anantapur 184.9 km
Coimbatore/Peelamedu 238.4 km
Trincomalee 238.5 km
Thiruvananthapuram Aeropuerto 260.9 km
Bellary 270.1 km
Udhagamandalam 273.0 km
Mysore 276.6 km
Batticaloa 290.6 km
Chitradurga 310.8 km
Cochín Aeropuerto 312.4 km
Alappuzha 313.0 km
Isla Willingdon 328.0 km
Kozhikode 378.8 km
Madikeri 384.2 km
Gadag-Betageri 403.9 km