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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 - Sestroretsk Distance
Pulkovo Airport 39.3 km
Siversky 74.6 km
Shlisselburg 116.1 km
Parikkala Koitsanlahti 141.7 km
Nikolaevskoe 149.2 km
Vyborg 149.8 km
Lyuban 158.3 km
Valaam 158.7 km
Kingisepp 168.0 km
Sortavala 176.3 km
Punkaharju Airport 179.9 km
Joutseno 181.0 km
Arkazha 208.4 km
Tohmajärvi 209.8 km
Savonlinna 211.8 km
Lappeenranta 216.8 km
Narva 218.0 km
Dno 220.2 km
Lappeenranta 222.0 km
Kirishi 238.3 km
Liperi Tuiskavanluoto 238.5 km
Rantasalmi Rukkasluoto 246.4 km
Staraya Russa 249.8 km
Joensuu 250.4 km
Virolahti 258.8 km
Krenitsy 261.6 km
Gdov 272.3 km
Ilomantsi Mekrijarvi 279.0 km
Pskov 285.0 km
Juva 290.1 km
Jõhvi 295.7 km
Kotka Haapasaari 310.4 km
Lieksa 310.6 km
Kholm 313.5 km
Juuka 313.9 km
Ilomantsi Pötsönvaara 315.4 km
Puskinskie Gory 321.6 km
Suoyarvi 329.6 km
YamskayaSloboda 334.8 km
Rankki 335.0 km
Mikkeli 344.2 km
Olonets 346.1 km
Utti 346.6 km
Kuopio Ritoniemi 349.0 km
Rautavaara Yla-luosta 349.7 km
Anjala 356.2 km
Opochka 356.6 km
Mustvee 356.7 km
Demyansk 363.1 km
Velikiye Luki 367.6 km
Valtimo 368.4 km
Reboly 370.7 km
Kuopio 372.8 km
Kuopio 376.3 km
Kunda (Port) 384.6 km
Pernaja Orrengrund 391.8 km
Toropets 392.4 km
Võru 395.3 km
Tartu 400.8 km
Tikhvin 401.2 km
Lodeynoye Pole 403.1 km
Kuhmo Kalliojoki 405.0 km
Alūksne 417.9 km
Jõgeva 419.1 km
Maaninka 419.1 km
Väike-Maarja Parish 426.3 km
Sotkamo 430.0 km
Heinola 449.2 km
Ostashkov 449.6 km
Rēzekne 460.2 km
Gulbene 464.0 km
Leivonmäki 465.0 km
Borovichi 465.8 km
Vaasa Klemettila 471.9 km
Vierema Kaarakkala 476.5 km
Kajaani 480.6 km
Porvoo Emasalo 482.5 km
Vesanto 485.6 km
Porvoo 486.0 km
Kallbadagrund 486.2 km
Padany 487.2 km
Suomussalmi Pesio 488.1 km
Lahti 489.9 km
Porvoo Kilpilahti 492.2 km
Valga 493.5 km
Pulkkilanharju Lighthouse 508.1 km
Viljandi 515.2 km
Luhanka Judinsalo 521.2 km
Türi 522.0 km
Madona 524.8 km
Jyväskylä 527.8 km
Mantsala Hirvihaara 533.9 km
Zosēni 537.9 km
Zosēni 537.9 km
Viitasaari 542.5 km
Rūjiena 556.1 km
Lammi 556.6 km
Zīlāni 571.8 km
Vaala Pelso 581.3 km
Priekuļi 583.7 km