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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.


Poblíž povětrnostní stanice - Mayiladuthurai Vzdálenost
Cuddalore 18.6 km
Karaikal 20.7 km
Nákappattinam 23.2 km
Jápané 49.8 km
Mannar 51.3 km
Pamban 60.8 km
Puttalam 64.1 km
Vélúr 66.9 km
Letiště Čennaí 70.0 km
Nellúru 75.6 km
Katunayake 82.0 km
Ongole 98.3 km
Anuradhápura Letiště 100.6 km
Tiruchirappalli Intl. Airport 104.1 km
Vavuniya 104.8 km
Kurunegala 106.2 km
Maha Illuppallama 107.5 km
Kadapa 114.9 km
Kandy 130.9 km
Arogyavaram 137.9 km
Sélam 165.5 km
Madurai 175.4 km
Trincomalee 184.0 km
Kurnool 203.1 km
Palayamkottai 217.7 km
Bangalore / Hindustan 224.8 km
Bengalúr 233.7 km
Batticaloa 236.1 km
Anantapur 239.5 km
Coimbatore/Peelamedu 289.4 km
Tiruvanantapuram Letiště 306.2 km
Ballari 324.7 km
Óttakamandu 324.8 km
Maisúr 329.5 km
Alappuzha 361.7 km
Kóčin Letiště 362.2 km
Chitradurga 365.2 km
Willingdon 377.6 km
Kóžikkót 430.4 km
Madikeri 437.1 km
Gadag-Betageri 458.5 km