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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 - Sursari Gogland Island Distance
Vyborg 57.1 km
Joutseno 93.9 km
Kingisepp 94.1 km
Lappeenranta 120.5 km
Lappeenranta 124.4 km
Narva 128.7 km
Parikkala Koitsanlahti 129.8 km
Pulkovo Airport 146.7 km
Virolahti 150.9 km
Siversky 151.5 km
Punkaharju Airport 158.0 km
Savonlinna 168.2 km
Nikolaevskoe 183.1 km
Rantasalmi Rukkasluoto 186.6 km
Gdov 194.8 km
Jõhvi 198.4 km
Kotka Haapasaari 202.3 km
Juva 205.7 km
Shlisselburg 224.3 km
Rankki 226.8 km
Valaam 237.2 km
Liperi Tuiskavanluoto 238.0 km
Utti 239.7 km
Sortavala 239.8 km
Tohmajärvi 246.1 km
Mikkeli 246.4 km
Joensuu 246.7 km
Pskov 246.9 km
Anjala 248.3 km
Dno 255.5 km
Lyuban 262.2 km
Mustvee 263.8 km
Kuopio Ritoniemi 280.6 km
Kunda (Port) 281.3 km
Pernaja Orrengrund 283.9 km
Juuka 294.4 km
Arkazha 299.2 km
Kuopio 303.1 km
Kuopio 305.0 km
Rautavaara Yla-luosta 310.6 km
Puskinskie Gory 311.9 km
Tartu 315.0 km
Võru 320.7 km
Lieksa 322.4 km
Jõgeva 324.2 km
Väike-Maarja Parish 326.0 km
Ilomantsi Mekrijarvi 329.2 km
Staraya Russa 333.7 km
Valtimo 336.7 km
Heinola 342.5 km
Opochka 342.7 km
Maaninka 343.2 km
Kirishi 345.6 km
Alūksne 350.3 km
Ilomantsi Pötsönvaara 362.3 km
Leivonmäki 362.6 km
Krenitsy 369.3 km
Porvoo Emasalo 374.8 km
Porvoo 378.0 km
Kallbadagrund 379.2 km
Lahti 382.0 km
Kholm 382.5 km
Porvoo Kilpilahti 384.2 km
Vaasa Klemettila 386.0 km
Sotkamo 387.4 km
Vesanto 395.4 km
Gulbene 395.8 km
Pulkkilanharju Lighthouse 401.0 km
Reboly 403.3 km
Vierema Kaarakkala 407.2 km
Valga 408.4 km
Rēzekne 409.8 km
Velikiye Luki 414.5 km
Kuhmo Kalliojoki 415.8 km
Luhanka Judinsalo 415.9 km
Suoyarvi 417.5 km
Viljandi 420.4 km
Türi 422.3 km
Kajaani 424.5 km
Mantsala Hirvihaara 425.7 km
Jyväskylä 427.7 km
YamskayaSloboda 435.3 km
Lammi 448.7 km
Viitasaari 449.3 km
Olonets 449.4 km
Madona 453.4 km
Demyansk 457.4 km
Zosēni 459.7 km
Zosēni 459.7 km
Suomussalmi Pesio 460.6 km
Toropets 463.2 km
Rūjiena 465.1 km
Priekuļi 498.6 km
Zīlāni 500.9 km
Pyhajarvi Ol Ojakyla 505.4 km
Vaala Pelso 507.5 km
Lodeynoye Pole 508.7 km
Tikhvin 509.4 km
Ostashkov 544.4 km
Haapavesi 556.2 km