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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 - Keçiören Distance
Ankara Central 5.0 km
Guvercinlik 14.4 km
Ankara/Esenboga 18.4 km
Etimesgut Air Base 20.4 km
Mürted Airfield Command 34.3 km
Kırıkkale 74.0 km
Çankırı 100.5 km
Cihanbeyli 126.5 km
Bolu 156.8 km
Kastamonu 163.0 km
Bartın 164.3 km
Kırşehir 164.8 km
Zonguldak 180.8 km
Zonguldak 180.8 km
Konya 193.7 km
Aksaray 199.7 km
Düzce 204.9 km
İnebolu 210.8 km
Yozgat 215.9 km
Nevşehir Kapadokya Airport 217.7 km
Akşehir 224.1 km
Çorum 237.4 km
Nevşehir 241.1 km
Eskişehir Airport 256.9 km
Karaman 264.2 km
Ereğli 266.9 km
Niğde 276.2 km
Afyonkarahisar 279.4 km
Adapazarı 282.7 km
Afyonkarahisar 285.4 km
Merzifon 305.1 km
Erkilet Intl. Airport 313.8 km
Zafer Havaalani 316.0 km
Sinop (Kap) 317.4 km
Bilecik 323.1 km
Kütahya 325.1 km
Isparta 334.5 km
Amasya 337.4 km
Alanya 338.2 km
Cengiz Topel Naval Air Station 340.0 km
Suleyman Demirel 344.5 km
Gazipaşa Airport 354.4 km
Mersin 355.5 km
Silifke 356.7 km
Burdur 358.4 km
Anamur 366.3 km
Yenişehir Airport 368.6 km
Yenişehir Airport 371.7 km
Antalya 379.8 km
Muratpaşa 382.2 km
Adana Şakirpaşa Airport 388.2 km
Incirlik Air Base Airport 396.7 km
Samsun 399.9 km
Yalova Airport 403.9 km
Istanbul / Sabiha Gokcen 405.2 km
Uşak 405.8 km
Tokat 412.8 km
Istanbul 422.1 km
Bursa 423.4 km
Carsamba/Samsun 425.7 km
Sarıyer 436.6 km
Kilyos 443.1 km
Osmaniye 449.9 km
Istanbul 460.2 km
Finike 463.4 km
Denizli 471.3 km
İskenderun 482.8 km
Simferopol Airport 483.9 km
Hatay Airport 505.6 km
Marash Airport 507.4 km
Kaş 508.8 km
Kastellorizo 521.1 km
Fethiye 527.7 km
Dalaman 551.7 km
Muğla 567.4 km
Sfântu Gheorghe 591.2 km
Marmaris 594.4 km
Mangalia 600.1 km
Constanța 619.0 km
Gura Portitei 621.1 km
Rhodes/Paradissi 634.6 km
Umirea 636.0 km
Mihail Kogălniceanu Airport 641.7 km
Medgidia 655.1 km
Casimcea 677.7 km
Cernavodă 679.6 km