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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 - Kalecik Distance
Kırıkkale 27.2 km
Ankara/Esenboga 44.6 km
Çankırı 52.3 km
Ankara Central 59.2 km
Guvercinlik 74.0 km
Etimesgut Air Base 80.4 km
Mürted Airfield Command 92.9 km
Kırşehir 122.5 km
Kastamonu 125.0 km
Cihanbeyli 144.1 km
Yozgat 158.0 km
Aksaray 174.6 km
Nevşehir Kapadokya Airport 176.0 km
Çorum 177.5 km
İnebolu 179.8 km
Bartın 186.2 km
Nevşehir 199.4 km
Bolu 208.8 km
Zonguldak 218.5 km
Zonguldak 218.5 km
Konya 220.5 km
Niğde 243.2 km
Merzifon 245.3 km
Ereğli 251.4 km
Düzce 258.0 km
Erkilet Intl. Airport 263.3 km
Sinop (Kap) 265.1 km
Karaman 270.6 km
Akşehir 275.3 km
Amasya 277.3 km
Eskişehir Airport 316.8 km
Mersin 334.0 km
Afyonkarahisar 337.3 km
Adapazarı 338.3 km
Samsun 340.4 km
Afyonkarahisar 343.6 km
Silifke 349.5 km
Tokat 353.0 km
Adana Şakirpaşa Airport 356.0 km
Incirlik Air Base Airport 363.0 km
Carsamba/Samsun 366.0 km
Alanya 367.2 km
Zafer Havaalani 375.8 km
Gazipaşa Airport 377.1 km
Anamur 379.8 km
Bilecik 382.2 km
Kütahya 385.2 km
Isparta 387.1 km
Sivas 389.9 km
Cengiz Topel Naval Air Station 396.0 km
Suleyman Demirel 398.6 km
Osmaniye 408.3 km
Burdur 411.6 km
Antalya 425.6 km
Yenişehir Airport 427.4 km
Muratpaşa 428.2 km
Yenişehir Airport 430.6 km
İskenderun 445.2 km
Marash Airport 459.1 km
Yalova Airport 461.4 km
Simferopol Airport 461.5 km
Istanbul / Sabiha Gokcen 461.7 km
Uşak 465.2 km
Hatay Airport 468.5 km
Istanbul 478.7 km
Bursa 482.4 km
Sarıyer 492.3 km
Kilyos 498.3 km
Ordu 507.3 km
Finike 510.0 km
Kilis 515.4 km
Gaziantep 519.5 km
Denizli 528.7 km
Kaş 557.8 km
Kastellorizo 570.1 km
Fethiye 580.6 km
Anapa 612.6 km
Sfântu Gheorghe 621.5 km
Anapa Airport 625.1 km