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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 - Töölö Distance
Töölö 1.1 km
Vanhakaupunki 8.0 km
Helsinki Airport 21.9 km
Rajamäki 53.3 km
Nurmijärvi 54.0 km
Mantsala Hirvihaara 58.9 km
Porvoo Kilpilahti 68.0 km
Vihti 71.0 km
Kirkkonummi Makiluoto 71.1 km
Kallbadagrund 71.5 km
Porvoo Emasalo 74.9 km
Porvoo 77.2 km
Tallinn 84.1 km
Lammi 96.6 km
Lohja 103.2 km
Hämeenlinna 105.2 km
Bagaskar 107.1 km
Lahti 114.5 km
Kuusiku 117.4 km
Hattula 125.0 km
Pakri 125.8 km
Pulkkilanharju Lighthouse 132.5 km
Türi 138.6 km
Kiikala Airport 151.2 km
Tammisaari Jussaro 157.7 km
Heinola 163.5 km
Pernaja Orrengrund 166.0 km
Väike-Maarja Parish 171.2 km
Luhanka Judinsalo 172.3 km
Nigula 173.2 km
Halli 177.7 km
Halli Airport 178.5 km
Pärnu Airport 178.7 km
Jokioinen 178.7 km
Kunda (Port) 185.7 km
Viljandi 188.2 km
Juupajoki 192.1 km
Hanko Tvarminne 193.0 km
Tampere 194.0 km
Tampere 203.9 km
Salo 208.2 km
Jõgeva 210.4 km
Anjala 213.7 km
Leivonmäki 218.5 km
Rankki 224.2 km
Virtsu 225.6 km
Russarö 227.0 km
Rūjiena 227.5 km
Hanko 230.4 km
Kihnu 232.7 km
Utti 233.1 km
Ainaži 235.6 km
Jyväskylä 244.8 km
Kotka Haapasaari 247.4 km
Mustvee 253.2 km
Ähtäri 260.1 km
Valga 261.3 km
Kärdla Airport 263.2 km
Tartu 266.8 km
Piikkiö 270.4 km
Virrat Aijanneva 276.1 km
Jõhvi 281.4 km
Priekuļi 283.6 km
Skulte 289.8 km
Mikkeli 295.6 km
Ruhnu 302.6 km
Turku 303.6 km
Virolahti 304.2 km
Dragsf Jard Vano 309.6 km
Turku Artukainen 312.5 km
Alajärvi 312.5 km
Kokemäki 314.0 km
Zosēni 315.9 km
Zosēni 315.9 km
Viitasaari 316.2 km
Turku Rajakari 320.8 km
Võru 321.0 km
Vesanto 327.4 km
Kankaanpää 330.4 km
Niinisalo 330.5 km
Kuressaare Airport 333.4 km
Riga Airport 333.4 km
Halsua Kanala Purola 343.3 km
Ristna 344.7 km
Gdov 347.0 km
Mērsrags 348.8 km
Skrīveri 349.1 km
Alūksne 352.3 km
Madona 353.7 km
Vaasa Klemettila 354.2 km
Gulbene 355.4 km
Seinäjoki 355.5 km
Kolka 355.9 km
Narva 358.2 km
Fagerholm 363.7 km
Lappeenranta 366.7 km
Juva 370.7 km
Jelgava 373.1 km
Lappeenranta 373.2 km
Kauhava 374.3 km

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