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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 - İznik Distancia
Yenişehir aeropuerto 23.2 km
Yenişehir aeropuerto 27.0 km
Bilecik 37.9 km
Cengiz Topel Naval Air Station 46.6 km
Yalova Aeropuerto 54.0 km
Istanbul / Sabiha Gokcen 65.1 km
Bursa 75.8 km
Estambul 78.7 km
Adapazarı 85.6 km
Sarıyer 100.3 km
Kütahya 101.2 km
Kilyos 111.0 km
Eskişehir Aeropuerto 112.6 km
Estambul 113.5 km
Zafer Havaalani 133.9 km
Düzce 166.3 km
Uşak 171.5 km
Afyonkarahisar 184.4 km
Afyonkarahisar 189.5 km
Bandırma 195.1 km
Bolu 212.1 km
Çorlu 212.2 km
Balıkesir 215.0 km
Tekirdağ 247.5 km
Zonguldak 252.1 km
Zonguldak 252.1 km
Akhisar 254.2 km
Suleyman Demirel 257.2 km
Denizli 264.9 km
Isparta 273.0 km
Burdur 273.8 km
Akşehir 273.9 km
Kırklareli 305.0 km
Manisa 309.1 km
Balıkesir Koca Seyit aeropuerto 312.5 km
Bartın 313.5 km
Mürted Airfield Command 318.8 km
Burgas 321.3 km
Burgas aeropuerto 323.0 km
Aydın 325.4 km
Etimesgut Air Base 333.8 km
Varna 336.0 km
Guvercinlik 340.8 km
Dikili 341.3 km
Esmirna 343.9 km
Muğla 345.8 km
Varna aeropuerto 346.1 km
Ayvalık 353.2 km
Esmirna-Adnan Menderes aeropuerto 353.3 km
Mangalia 353.6 km
Çiğli Air Base 354.3 km
Ankara Central 355.3 km
Muratpaşa 358.6 km
Antalya 359.7 km
Ankara/Esenboğa 366.6 km
Çanakkale 370.3 km
Kuşadası 371.0 km
Mitilene 371.4 km
Edirne 371.5 km
Dalaman 374.1 km
Fethiye 374.5 km
Marmaris 382.9 km
Milas-Bodrum aeropuerto 385.6 km
Constanza 387.8 km
Konya 392.4 km
Cihanbeyli 397.2 km
Finike 400.0 km
Medgidia 406.7 km
Mihail Kogălniceanu aeropuerto 407.4 km
Adamclisi 407.6 km
Kaş 407.8 km
Samos Aeropuerto 410.9 km
Bodrum 415.8 km
Kastelórizo 416.3 km
Gura Portitei 422.2 km
Alejandrópolis Aeropuerto 425.2 km
Cernavodă 425.8 km
Kırıkkale 426.6 km
Datça 428.7 km
Rodas/Paradissi 431.6 km
Umirea 432.5 km
Çeşme 433.5 km
Sfântu Gheorghe 433.7 km
Çankırı 434.5 km
Feteşti 437.8 km
Sliven 438.3 km
Casimcea 447.2 km
Isla de Quíos Aeropuerto 448.4 km
Alanya 448.4 km
Leros 453.7 km
Călăraşi 455.3 km
Cos Aeropuerto 459.1 km
Hârşova 460.2 km
Kastamonu 461.5 km
Razgrad 473.1 km
İnebolu 476.4 km
Slobozia 480.6 km
Gazipaşa Aeropuerto 489.9 km
Karaman 495.0 km
Oltenița 496.3 km