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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 - Suriyampalayam Vzdálenost
Bangalore / Hindustan 36.8 km
Bengalúr 38.5 km
Sélam 56.0 km
Madurai 60.0 km
Palayamkottai 63.9 km
Coimbatore/Peelamedu 69.2 km
Anantapur 78.4 km
Óttakamandu 103.9 km
Arogyavaram 104.9 km
Tiruvanantapuram Letiště 107.0 km
Maisúr 109.9 km
Kurnool 112.1 km
Tiruchirappalli Intl. Airport 117.8 km
Ballari 129.3 km
Kóčin Letiště 144.2 km
Alappuzha 146.6 km
Kadapa 147.4 km
Chitradurga 154.4 km
Willingdon 160.0 km
Vélúr 168.6 km
Pamban 178.9 km
Kóžikkót 209.7 km
Madikeri 216.8 km
Cuddalore 233.9 km
Karaikal 241.4 km
Nákappattinam 243.4 km
Gadag-Betageri 248.7 km
Puttalam 251.9 km
Mannar 255.8 km
Katunayake 263.1 km
Jápané 264.3 km
Nellúru 266.1 km
Ongole 279.9 km
Letiště Čennaí 282.2 km
Kurunegala 311.8 km
Mangalore/Bajpe 312.4 km
Anuradhápura Letiště 312.8 km
Maha Illuppallama 319.2 km
Vavuniya 320.2 km
Kandy 340.9 km
Belgaum/Sambra 359.4 km
Honnavar 366.2 km
Trincomalee 402.9 km
Karwar 403.7 km
Goa / Panjim (Letiště) 442.7 km
Batticaloa 454.7 km
Minicoy / Lakkadiven 510.1 km