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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.


Estações Meteorológicas Próximas - Theni Allinagaram Distância
Palayamkottai 43.7 km
Coimbatore/Peelamedu 52.9 km
Tiruvanantapura Aeroporto 68.6 km
Madurai 69.9 km
Bangalor 72.5 km
Bangalore / Hindustan 74.0 km
Salem 87.0 km
Udhagamandalam 88.7 km
Maiçor 102.7 km
Anantapur 113.7 km
Alappuzha 117.4 km
Cochim Aeroporto 118.6 km
Willingdon 133.6 km
Tiruchirappalli Intl. Airport 140.3 km
Arogyavaram 141.2 km
Chitradurga 156.6 km
Kadapa 183.3 km
Calecute 190.1 km
Pamban 195.5 km
Vellore 198.5 km
Madikeri 202.7 km
Cuddalore 258.9 km
Karaikal 264.2 km
Negapatão 265.8 km
Putalão 266.9 km
Mannar 273.6 km
Katunayake 276.0 km
Colombo 276.1 km
Colombo 277.8 km
Jafanapatão 284.0 km
Nellore 296.2 km
Mangalore/Bajpe 297.8 km
Aeroporto Internacional de Chennai 309.2 km
Galle 317.7 km
Kurunegala 327.3 km
Anuradapura Aeroporto 330.3 km
Ratnapura 334.0 km
Maha Illuppallama 336.3 km
Vavuniya 338.7 km
Honnavar 355.0 km
Cândia 356.9 km
Nuwara Eliya 372.7 km
Baticalá 393.1 km
Bandarawela 396.8 km
Badulla 403.6 km
Hambantota 415.8 km
Triquinimale 422.1 km
Baticaloa 473.4 km
Minicoy / Lakkadiven 482.9 km
Hanimaadhoo 487.3 km
Pottuvil 489.9 km