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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 - Sivas Distance
Sivas 14.3 km
Tokat 70.1 km
Carsamba/Samsun 143.5 km
Ordu 146.8 km
Amasya 152.9 km
Samsun 158.5 km
Malatya/Erhac 166.9 km
Giresun 183.6 km
Tulga Meydan 184.6 km
Erkilet Intl. Airport 190.8 km
Merzifon 192.5 km
Marash Airport 196.8 km
Gaziantep 239.7 km
Adıyaman 240.3 km
Çorum 241.1 km
Yozgat 246.8 km
Osmaniye 249.5 km
Kilis 269.7 km
Elazığ 272.3 km
Nevşehir 277.2 km
Erzincan 279.2 km
Gümüşhane 279.5 km
Tunceli 287.4 km
Nevşehir Kapadokya Airport 290.1 km
Sinop (Kap) 290.8 km
Şanlıurfa GAP Airport 290.9 km
Gap Meydan 292.0 km
İskenderun 298.4 km
Urfa 301.3 km
Incirlik Air Base Airport 303.7 km
Niğde 305.5 km
Hatay Airport 313.4 km
Adana Şakirpaşa Airport 313.6 km
Kırşehir 321.9 km
Trabzon 326.4 km
Aksaray 352.7 km
Bayburt 359.4 km
Mersin 375.8 km
Çankırı 386.3 km
Ereğli 388.1 km
Kastamonu 388.7 km
Kırıkkale 389.6 km
Diyarbakır 389.8 km
Latakia Airport 402.6 km
Rize 405.2 km
Bingöl 405.5 km
Bassel Al-Assad Intl. Airport 407.6 km
İnebolu 413.0 km
Hama 413.6 km
Adler Microdistrict 453.9 km
Silifke 459.0 km
Erzurum Airport 462.7 km
Mardin Airport 464.1 km
Erzurum 475.1 km
Rizokarpaso 477.2 km
Karaman 482.5 km
Batman 484.1 km
Krasnaya Polyana 492.5 km
Hassakah 501.9 km
Gialousa 507.3 km
Muş 508.5 km
Hopa 511.8 km
Qamishli 522.4 km
Muş Airport 524.2 km
Trikomo 534.4 km
Batumi 534.7 km
Bogus Soviet 539.3 km
Famagusta 540.0 km
Lefkoniko 548.0 km
Artvin 548.3 km
Lefkoniko 549.1 km
Poti 559.4 km
Tymbou 572.6 km
Ercan Intl. Airport 572.7 km
Kyrenia 574.3 km
Athalassa 580.5 km
Karavas 583.5 km
Zugdidi 591.3 km
Zugdidi 591.3 km
Teberda 613.9 km