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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.


Nearby Weather Stations - Surandai Απόσταση
Palayamkottai 39.4 km
Τιρουβανανταπουράμ Αεροδρόμιο 51.5 km
Coimbatore/Peelamedu 64.1 km
Μαντουράι 79.9 km
Ooty 95.8 km
Μπανγκαλόρ 98.6 km
Bangalore / Hindustan 100.1 km
Salem 106.2 km
Alappuzha 110.4 km
Μαϊσόρ 113.9 km
Κοτσί Αεροδρόμιο 115.1 km
Willingdon 128.6 km
Tiruchirappalli International Airport 152.3 km
Kozhikode 189.3 km
Pamban 202.4 km
Madikeri 205.8 km
Vellore 214.2 km
Cuddalore 270.5 km
Puttalam 271.6 km
Karaikal 274.2 km
Nagapattinam 275.5 km
Κολόμπο 278.8 km
Katunayake 279.2 km
Mannar 280.2 km
Κολόμπο 280.4 km
Τζάφνα 291.7 km
Mangalore/Bajpe 299.1 km
Galle 319.8 km
Kurunegala 331.8 km
Ανουρανταπούρα Αεροδρόμιο 336.1 km
Ratnapura 337.5 km
Maha Illuppallama 341.9 km
Βαβουνίγια 345.1 km
Κάντι 361.6 km
Nuwara Eliya 377.1 km
Bandarawela 401.3 km
Badulla 408.3 km
Hambantota 419.6 km
Trincomalee 428.6 km
Velana International Airport 450.2 km
Minicoy / Lakkadiven 473.5 km
Hanimaadhoo 475.4 km
Batticaloa 479.3 km
Pottuvil 495.2 km