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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 - Vanhakaupunki Distance
Vanhakaupunki 1.5 km
Töölö 7.8 km
Helsinki Airport 15.6 km
Rajamäki 45.7 km
Nurmijärvi 46.5 km
Mantsala Hirvihaara 54.8 km
Vihti 64.8 km
Kirkkonummi Makiluoto 69.7 km
Porvoo Kilpilahti 69.9 km
Kallbadagrund 76.5 km
Porvoo Emasalo 78.0 km
Porvoo 78.4 km
Tallinn 88.3 km
Lammi 90.3 km
Hämeenlinna 97.5 km
Lohja 98.7 km
Bagaskar 104.7 km
Lahti 112.1 km
Hattula 117.4 km
Kuusiku 123.3 km
Pakri 126.8 km
Pulkkilanharju Lighthouse 128.5 km
Kiikala Airport 146.1 km
Türi 146.3 km
Tammisaari Jussaro 155.4 km
Heinola 161.9 km
Luhanka Judinsalo 167.4 km
Pernaja Orrengrund 169.1 km
Halli 170.7 km
Halli Airport 171.5 km
Jokioinen 172.7 km
Nigula 175.1 km
Väike-Maarja Parish 178.1 km
Pärnu Airport 184.1 km
Juupajoki 184.5 km
Tampere 186.6 km
Hanko Tvarminne 190.4 km
Kunda (Port) 191.4 km
Viljandi 195.8 km
Tampere 196.7 km
Salo 203.8 km
Leivonmäki 215.3 km
Anjala 215.6 km
Jõgeva 217.6 km
Russarö 224.5 km
Rankki 227.2 km
Hanko 227.7 km
Virtsu 227.7 km
Utti 234.4 km
Rūjiena 234.9 km
Kihnu 237.0 km
Jyväskylä 239.8 km
Ainaži 241.1 km
Kotka Haapasaari 250.7 km
Ähtäri 252.5 km
Mustvee 259.8 km
Kärdla Airport 262.9 km
Piikkiö 266.1 km
Virrat Aijanneva 268.5 km
Valga 269.0 km
Tartu 274.1 km
Jõhvi 286.9 km
Priekuļi 290.8 km
Mikkeli 295.2 km
Skulte 295.7 km
Turku 299.0 km
Alajärvi 305.1 km
Ruhnu 305.6 km
Dragsf Jard Vano 306.5 km
Virolahti 307.0 km
Kokemäki 308.1 km
Turku Artukainen 308.1 km
Viitasaari 311.1 km
Turku Rajakari 316.5 km
Zosēni 323.4 km
Zosēni 323.4 km
Vesanto 323.5 km
Kankaanpää 323.6 km
Niinisalo 323.8 km
Võru 328.4 km
Kuressaare Airport 334.3 km
Halsua Kanala Purola 336.0 km
Riga Airport 338.7 km
Ristna 343.7 km
Seinäjoki 348.0 km
Vaasa Klemettila 350.6 km
Mērsrags 352.2 km
Gdov 353.0 km
Skrīveri 356.1 km
Kolka 357.9 km
Alūksne 359.8 km
Fagerholm 360.0 km
Madona 361.4 km
Gulbene 363.0 km
Narva 363.2 km
Kauhava 366.7 km
Lappeenranta 368.7 km
Pyhajarvi Ol Ojakyla 369.3 km
Juva 370.9 km
Pori 373.2 km