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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 - Lappeenranta Distance
Lappeenranta 1.2 km
Lappeenranta 5.5 km
Joutseno 40.4 km
Vyborg 67.7 km
Virolahti 78.1 km
Juva 89.8 km
Rantasalmi Rukkasluoto 107.2 km
Savonlinna 120.4 km
Mikkeli 127.2 km
Kotka Haapasaari 136.1 km
Utti 141.8 km
Punkaharju Airport 144.2 km
Parikkala Koitsanlahti 145.5 km
Rankki 153.0 km
Anjala 158.6 km
Narva 165.5 km
Kingisepp 170.7 km
Kuopio Ritoniemi 174.9 km
Jõhvi 191.5 km
Kuopio 191.9 km
Kuopio 198.4 km
Pernaja Orrengrund 209.6 km
Liperi Tuiskavanluoto 219.0 km
Joensuu 222.0 km
Maaninka 228.6 km
Gdov 231.3 km
Rautavaara Yla-luosta 233.6 km
Kunda (Port) 238.1 km
Heinola 239.9 km
Juuka 242.1 km
Leivonmäki 248.2 km
Pulkovo Airport 256.4 km
Mustvee 256.4 km
Tohmajärvi 265.2 km
Valtimo 265.4 km
Vaasa Klemettila 266.1 km
Siversky 271.3 km
Vesanto 274.7 km
Lahti 285.8 km
Sortavala 287.5 km
Väike-Maarja Parish 289.7 km
Vierema Kaarakkala 295.8 km
Porvoo 295.8 km
Porvoo Emasalo 297.9 km
Pulkkilanharju Lighthouse 299.1 km
Valaam 300.3 km
Nikolaevskoe 300.3 km
Sotkamo 300.5 km
Lieksa 301.6 km
Porvoo Kilpilahti 304.2 km
Jõgeva 304.4 km
Luhanka Judinsalo 306.9 km
Kallbadagrund 308.2 km
Jyväskylä 310.5 km
Tartu 316.9 km
Pskov 320.9 km
Kajaani 323.1 km
Viitasaari 328.8 km
Shlisselburg 329.9 km
Mantsala Hirvihaara 337.4 km
Võru 342.3 km
Ilomantsi Mekrijarvi 349.9 km
Lammi 351.9 km
Helsinki Airport 367.3 km
Dno 370.0 km
Töölö 371.1 km
Vanhakaupunki 372.7 km
Lyuban 375.5 km
Ilomantsi Pötsönvaara 375.8 km
Alūksne 379.6 km
Rajamäki 380.8 km
Türi 381.1 km
Kuhmo Kalliojoki 384.1 km
Pyhajarvi Ol Ojakyla 384.8 km
Suomussalmi Pesio 384.9 km
Halli Airport 385.3 km
Halli 386.8 km
Vaala Pelso 391.9 km
Viljandi 393.3 km
Reboly 396.9 km
Nurmijärvi 398.5 km
Puskinskie Gory 402.0 km
Valga 403.6 km
Hämeenlinna 412.9 km
Arkazha 418.6 km
Gulbene 420.6 km
Vihti 427.9 km
Hattula 431.3 km
Tallinn 435.5 km
Haapavesi 435.6 km
Kuusiku 438.2 km
Juupajoki 442.7 km
Kirkkonummi Makiluoto 443.3 km
Taivalkoski 443.7 km
Rūjiena 444.9 km
Pudasjärvi 450.6 km
Kirishi 453.7 km
Staraya Russa 454.2 km
Zosēni 464.6 km
Zosēni 464.6 km

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