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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.


Estaciones meteorológicas cercanas - Vavuniya Distancia
Vavuniya 0.0 km
Anuradhapura Aeropuerto 12.0 km
Maha Illuppallama 12.2 km
Kurunegala 28.0 km
Kandy 29.8 km
Ratnapura 39.8 km
Nuwara Eliya 43.9 km
Jaffna 56.4 km
Galle 59.7 km
Bandarawela 63.8 km
Mannar 65.1 km
Badulla 68.9 km
Katunayake 74.9 km
Puttalam 75.5 km
Colombo 77.8 km
Colombo 78.2 km
Nagapattinam 81.9 km
Trincomalee 83.5 km
Hambantota 84.6 km
Karaikal 84.9 km
Cuddalore 99.9 km
Batticaloa 134.8 km
Pamban 143.2 km
Pottuvil 151.8 km
Vellore 171.1 km
Tiruchirappalli aeropuerto 202.6 km
Salem 266.5 km
Madurai 268.8 km
Palayamkottai 306.1 km
Bangalore / Hindustan 327.8 km
Bangalore 336.5 km
Coimbatore/Peelamedu 387.2 km
Thiruvananthapuram Aeropuerto 395.2 km
Udhagamandalam 423.2 km
Mysore 430.0 km
Alappuzha 454.9 km
Cochín Aeropuerto 457.2 km
Isla Willingdon 472.0 km

Estado actual