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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 - Ondokuzmayıs Distance
Samsun 31.6 km
Carsamba/Samsun 57.7 km
Amasya 78.9 km
Merzifon 84.9 km
Sinop (Kap) 111.9 km
Tokat 119.8 km
Çorum 150.3 km
Sivas 176.8 km
Yozgat 206.7 km
Ordu 208.9 km
Erkilet Intl. Airport 253.1 km
Kastamonu 254.4 km
İnebolu 258.2 km
Giresun 262.7 km
Çankırı 284.4 km
Nevşehir Kapadokya Airport 299.6 km
Kırşehir 299.8 km
Nevşehir 301.2 km
Kırıkkale 320.9 km
Anapa 332.4 km
Anapa Airport 344.8 km
Malatya/Erhac 352.4 km
Kerch 353.8 km
Niğde 354.4 km
Aksaray 360.8 km
Ankara/Esenboga 363.6 km
Marash Airport 366.5 km
Tulga Meydan 369.2 km
Ankara Central 381.3 km
Osmaniye 388.3 km
Gümüşhane 388.9 km
Guvercinlik 395.7 km
Simferopol Airport 398.2 km
Etimesgut Air Base 401.6 km
Tuapse 406.0 km
Mürted Airfield Command 410.5 km
Incirlik Air Base Airport 411.1 km
Erzincan 415.2 km
Bartın 415.8 km
Trabzon 415.8 km
Gaziantep 418.4 km
Adıyaman 426.6 km
Ereğli 426.7 km
Cihanbeyli 433.4 km
Elazığ 439.4 km
Tunceli 440.1 km
Adler Microdistrict 459.7 km
Krasnodar 464.5 km
Bayburt 474.8 km
Şanlıurfa GAP Airport 475.7 km
Gap Meydan 476.8 km
Urfa 488.0 km
Rize 496.9 km
Krasnaya Polyana 498.8 km
Karaman 504.4 km
Konya 507.7 km
Maykop 524.6 km
Chornomorske 526.9 km
Bingöl 553.4 km
Diyarbakır 557.6 km
Tikhoretsk 588.4 km
Mardin Airport 633.7 km