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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 - Parangipettai Distância
Cuddalore 5.9 km
Karaikal 14.5 km
Negapatão 18.0 km
Jafanapatão 46.5 km
Mannar 52.5 km
Aeroporto Internacional de Chennai 56.5 km
Nellore 63.6 km
Putalão 68.7 km
Vellore 72.9 km
Pamban 74.3 km
Katunayake 86.2 km
Ongole 86.4 km
Anuradapura Aeroporto 95.7 km
Vavuniya 98.4 km
Maha Illuppallama 102.5 km
Kurunegala 103.3 km
Tiruchirappalli Intl. Airport 116.0 km
Kadapa 119.4 km
Cândia 125.9 km
Arogyavaram 145.6 km
Triquinimale 175.2 km
Salem 176.3 km
Madurai 187.7 km
Kurnool 208.8 km
Baticaloa 227.2 km
Palayamkottai 230.4 km
Bangalore / Hindustan 234.5 km
Bangalor 243.3 km
Anantapur 247.5 km
Coimbatore/Peelamedu 300.7 km
Tiruvanantapura Aeroporto 318.8 km
Ballari 333.1 km
Udhagamandalam 335.8 km
Maiçor 340.0 km
Alappuzha 373.7 km
Cochim Aeroporto 373.9 km
Chitradurga 374.5 km
Willingdon 389.3 km
Calecute 441.6 km
Madikeri 447.7 km
Gadag-Betigeri 467.4 km