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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 - Kumbakonam Distance
Pamban 41.3 km
Cuddalore 42.2 km
Karikal 46.4 km
Nagapattinam 48.4 km
Vellore 50.1 km
Mannar 68.3 km
Jaffna 71.7 km
Puttalam 74.9 km
Trichy (Aéroport) 78.0 km
Katunayake 92.0 km
Nellore 93.7 km
Madras (Aéroport) 94.3 km
Colombo 95.8 km
Colombo 97.9 km
Kadapa 98.3 km
Arogyavaram 115.8 km
Anurâdhapura Aéroport 122.6 km
Kurunegala 125.9 km
Vavuniya 128.0 km
Maha Illuppallama 129.3 km
Galle 131.7 km
Ratnapura 137.6 km
Salem 139.9 km
Madurai 149.3 km
Kandy 152.4 km
Nuwara Eliya 168.6 km
Bandarawela 191.1 km
Palayamkottai 191.9 km
Badulla 196.7 km
Bangalore / Hindustan 200.0 km
Bangalore 208.8 km
Trinquemalay 208.8 km
Hambantota 211.6 km
Anantapur 216.5 km
Batticaloa 260.9 km
Coïmbatore/Peelamedu 263.5 km
Pottuvil 278.9 km
Thiruvananthapuram Aéroport 280.3 km
Ooty 298.9 km
Mysore 304.0 km
Alappuzha 335.6 km
Cochin Aéroport 336.1 km
Chitradurga 340.6 km
Willingdon 351.5 km
Kozhikode 404.5 km
Madikeri 411.5 km