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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 - Semyonov Distance
Nizhny Novgorod 70.0 km
Krasnye Baki 78.7 km
Zavolzhye 119.1 km
Vyezdnoye 139.6 km
Lukoyanov 140.3 km
Sergach 149.4 km
Yuryevets 159.8 km
Kologriv 161.7 km
Vetluga 163.3 km
Sharya 168.6 km
Nikolo-Poloma 175.7 km
Krasnoslobodsk 205.9 km
Temnikov 223.9 km
Saransk 225.8 km
Kozmodemyansk 234.8 km
Poretskoe 240.0 km
Nikolsk 240.6 km
Shakhunya 246.9 km
Alatyr 278.7 km
Nyuksenitsa 289.0 km
Vyksa 290.7 km
Penza 296.8 km
Vokhma 302.0 km
Surskoe 304.2 km
Pachelma 307.6 km
Inza 313.9 km
Totma 315.7 km
Cheboksary Airport 321.7 km
Belinsky 330.7 km
Zametcino 338.7 km
Elatma 339.3 km
Ushakovo 344.9 km
Buy 357.5 km
Radischevo 363.3 km
Yoshkar-Ola 365.2 km
Veliky Ustyug 369.1 km
Rtishchevo 372.1 km
Kirsanov 387.7 km
Ivanovo 395.8 km
Morshansk 405.3 km
Svobodnyy 406.0 km
Kostroma 420.7 km
Kanadej 438.5 km
Gus-Khrustalny 439.7 km
Kotelnich 443.7 km
Lalsk 458.0 km
Ulyanovsk Baratayevka Airport 459.4 km
Vladimir 465.4 km
Novy Toryal 471.5 km
Tambov 480.1 km
Oparino 481.8 km
Tunoshna Airport 487.4 km
Tetyushi 500.8 km
Ulyanovsk Vostochny Airport 512.3 km
Syzran 515.1 km
Khvalynsk 518.0 km
Novodevich'e 540.7 km
Ryazhsk 549.9 km
Michurinsk 550.6 km
Vozhega 565.7 km
Konosha 584.2 km
Pugachyov 604.1 km