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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 - Maardu Distance
Tallinn 49.0 km
Helsinki majakka 49.1 km
Kuusiku 59.5 km
Töölö 64.4 km
Vanhakaupunki 71.7 km
Helsinki-Malmi Airport 79.1 km
Türi 79.2 km
Kallbadagrund 83.2 km
Helsinki Airport 85.9 km
Kirkkonummi Makiluoto 87.8 km
Porvoo Emasalo 100.8 km
Pakri 109.3 km
Nurmijrvi geofys 112.5 km
Porvoo 113.5 km
Rajamäki 116.0 km
Vihti Maasoja 118.7 km
Bagaskar 120.9 km
Pärnu Airport 122.3 km
Viljandi 128.3 km
Lohja Porla 133.7 km
Väike-Maarja Parish 139.5 km
Nigula 144.2 km
Lammi 160.0 km
Rūjiena 164.1 km
Tammisaari Jussaro 164.9 km
Hämeenlinna 165.1 km
Lahti 165.8 km
Jõgeva 170.7 km
Kunda (Port) 170.8 km
Ainaži 177.3 km
Pernaja Orrengrund 178.6 km
Kihnu 182.5 km
Kiikala Airport 183.0 km
Hattula Lepaa 183.2 km
Asikkala Pulkkilanharju 190.1 km
Virtsu 192.0 km
Hanko Tvarminne 201.1 km
Valga 203.5 km
Heinola 207.7 km
Jokioinen 217.4 km
Mustvee 223.8 km
Tartu 224.0 km
Skulte 229.3 km
Luhanka Judinsalo 231.5 km
Salo 231.5 km
Russarö 232.1 km
Anjalankoski Anjala 233.9 km
Rankki 235.0 km
Hanko 237.2 km
Halli 241.8 km
Halli Airport 242.3 km
Tampere 246.9 km
Kärdla Airport 248.8 km
Juupajoki Hyytiala 253.6 km
Tampere 254.2 km
Zosēni 254.3 km
Zosēni 254.3 km
Kotka Haapasaari 254.6 km
Utti 257.1 km
Ruhnu 260.2 km
Jõhvi 264.8 km
Leivonmäki 269.7 km
Riga Airport 275.1 km
Võru 275.9 km
Skrīveri 285.4 km
Piikkiö 290.0 km
Madona 294.7 km
Gulbene 300.7 km
Alūksne 302.9 km
Mērsrags 303.6 km
Jyväskylä 304.3 km
Kuressaare Airport 306.8 km
Zīlāni 312.8 km
Virolahti 313.6 km
Jelgava 317.1 km
Dragsf Jard Vano 317.4 km
Kolka 320.8 km
Gdov 322.0 km
Ähtäri 322.9 km
Bauska 323.3 km
Turku 324.3 km
Mikkeli 329.4 km
Biržai 331.0 km
Turku Artukainen 332.1 km
Ristna 333.2 km
Virrat Aijanneva 333.3 km
Turku Rajakari 338.5 km
Narva 345.2 km
Dobele 345.5 km
Kokemaki Tulkkila 348.1 km
Stende 359.8 km
Sõrve Peninsula 366.1 km
Kankaanpää 373.5 km
Niinisalo 373.6 km
Vilsandi 374.1 km
Viitasaari 375.7 km
Fagerholm 375.7 km
Alajarvi Moksy 375.9 km
Vesanto 381.8 km
Lappeenranta 382.4 km