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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 - Gölcük Distance
Cengiz Topel Naval Air Station 15.9 km
Yenişehir Airport 52.8 km
Yenişehir Airport 56.4 km
Bilecik 57.2 km
Istanbul / Sabiha Gokcen 59.2 km
Yalova Airport 59.6 km
Adapazarı 67.1 km
Istanbul 75.9 km
Sarıyer 92.7 km
Bursa 98.2 km
Kilyos 101.4 km
Istanbul 113.9 km
Eskişehir Airport 122.6 km
Kütahya 126.9 km
Düzce 150.7 km
Zafer Havaalani 158.5 km
Bolu 198.8 km
Uşak 202.2 km
Afyonkarahisar 205.4 km
Bandırma 209.6 km
Afyonkarahisar 209.8 km
Çorlu 215.4 km
Zonguldak 231.6 km
Zonguldak 231.6 km
Balıkesir 237.1 km
Tekirdağ 253.7 km
Akhisar 280.6 km
Suleyman Demirel 282.3 km
Akşehir 288.3 km
Bartın 293.5 km
Denizli 295.8 km
Isparta 296.9 km
Burdur 299.4 km
Kırklareli 304.3 km
Mürted Airfield Command 312.0 km
Burgas 312.7 km
Burgas Airport 313.7 km
Varna 319.7 km
Etimesgut Air Base 327.9 km
Varna Airport 330.6 km
Mangalia 330.8 km
Balıkesir Koca Seyit Airport 332.1 km
Guvercinlik 334.9 km
Manisa 335.4 km
Ankara Central 349.1 km
Aydın 355.1 km
Ankara/Esenboga 358.9 km
Dikili 363.6 km
Constanța 363.9 km
İzmir 370.0 km
Edirne 373.6 km
Ayvalık 373.7 km
Muğla 376.8 km
Çiğli Air Base 379.7 km
İzmir Adnan Menderes Airport 380.0 km
Muratpaşa 383.0 km
Antalya 383.9 km
Mihail Kogălniceanu Airport 384.0 km
Çanakkale 384.6 km
Medgidia 384.9 km
Adamclisi 387.9 km
Mytilene 392.9 km
Gura Portitei 395.9 km
Kuşadası 399.1 km
Cihanbeyli 400.3 km
Konya 401.4 km
Cernavodă 404.9 km
Fethiye 404.9 km
Sfântu Gheorghe 405.0 km
Dalaman 405.0 km
Umirea 406.6 km
Marmaris 414.0 km
Milas- Bodrum Airport 415.7 km
Feteşti 417.8 km
Kırıkkale 420.3 km
Çankırı 423.2 km
Casimcea 423.9 km
Finike 427.4 km
Sliven 434.1 km
Alexandroupolis Airport 434.3 km
Kaş 437.0 km
Călăraşi 438.6 km
Samos Airport 438.7 km
Hârşova 438.9 km
Kastellorizo 445.7 km
Bodrum 445.8 km
Kastamonu 445.8 km
İnebolu 457.5 km
Çeşme 457.8 km
Datça 459.3 km
Slobozia 462.5 km
Rhodes/Paradissi 462.6 km
Razgrad 463.2 km
Alanya 466.2 km
Chios Airport 472.2 km
Leros 482.3 km
Grivita 483.3 km
Oltenița 483.4 km
Kos Airport 488.8 km
Kardzhali 503.8 km