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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 - Vihti Distance
Vihti 1.7 km
Nurmijärvi 31.5 km
Lohja 41.1 km
Rajamäki 50.1 km
Kirkkonummi Makiluoto 50.5 km
Hämeenlinna 60.2 km
Bagaskar 63.8 km
Helsinki Airport 65.7 km
Vanhakaupunki 67.1 km
Hattula 71.1 km
Töölö 73.1 km
Kiikala Airport 81.9 km
Mantsala Hirvihaara 92.6 km
Lammi 97.4 km
Jokioinen 106.4 km
Tallinn 107.0 km
Tammisaari Jussaro 108.7 km
Pakri 111.1 km
Tampere 128.0 km
Porvoo Kilpilahti 130.3 km
Tampere 135.2 km
Porvoo 136.4 km
Hanko Tvarminne 139.2 km
Porvoo Emasalo 140.9 km
Salo 141.5 km
Kallbadagrund 142.3 km
Juupajoki 145.3 km
Lahti 149.8 km
Kuusiku 151.9 km
Halli 152.3 km
Pulkkilanharju Lighthouse 152.8 km
Halli Airport 153.7 km
Nigula 161.8 km
Russarö 172.8 km
Hanko 174.9 km
Luhanka Judinsalo 180.2 km
Türi 198.3 km
Heinola 201.5 km
Pärnu Airport 202.6 km
Piikkiö 204.0 km
Virtsu 212.4 km
Ähtäri 215.5 km
Virrat Aijanneva 215.8 km
Kärdla Airport 225.9 km
Pernaja Orrengrund 230.6 km
Turku 235.8 km
Leivonmäki 240.9 km
Kihnu 241.5 km
Kokemäki 241.8 km
Väike-Maarja Parish 243.1 km
Turku Artukainen 245.5 km
Jyväskylä 246.9 km
Viljandi 247.2 km
Dragsf Jard Vano 250.1 km
Turku Rajakari 254.6 km
Kunda (Port) 257.6 km
Ainaži 258.6 km
Kankaanpää 258.6 km
Niinisalo 258.8 km
Alajärvi 271.4 km
Anjala 271.6 km
Rūjiena 278.2 km
Jõgeva 281.2 km
Rankki 287.6 km
Utti 288.0 km
Seinäjoki 289.8 km
Ruhnu 295.9 km
Ristna 300.1 km
Fagerholm 300.4 km
Kuressaare Airport 305.6 km
Pori 307.0 km
Halsua Kanala Purola 307.1 km
Pori 309.2 km
Kotka Haapasaari 312.0 km
Kauhava 313.3 km
Viitasaari 315.4 km
Skulte 315.9 km
Kauhajoki 318.8 km
Valga 322.6 km
Mustvee 325.6 km
Priekuļi 330.7 km
Ylistaro 332.8 km
Kolka 336.9 km
Tartu 337.1 km
Mikkeli 339.1 km
Vesanto 339.5 km
Utö 340.2 km
Mērsrags 344.5 km
Toholampi 346.3 km
Rauma Kylmapihlaja 351.0 km
Riga Airport 352.2 km
Jõhvi 352.9 km
Vilsandi 353.8 km
Pori Tahkoluoto 357.1 km
Kronoby 363.9 km
Sõrve peninsula 364.1 km
Pyhajarvi Ol Ojakyla 365.6 km
Virolahti 366.3 km
Ylivieska Airport 368.1 km
Vaasa Klemettila 369.2 km

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