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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.


Poblíž povětrnostní stanice - Kärdla Vzdálenost
Kärdla (Letiště) 1.8 km
Russarö 81.7 km
Ristna 83.8 km
Kuressaare Letiště 84.6 km
Hanko 85.5 km
Virtsu 87.2 km
Hanko Tvarminne 100.4 km
Nigula 111.2 km
Dragsf Jard Vano 114.5 km
Tammisaari Jussaro 120.1 km
Vilsandi 127.6 km
Kolka 128.9 km
Ruhnu 132.4 km
Sõrve peninsula 138.7 km
Pakri 142.4 km
Salo 146.3 km
Piikkiö 147.1 km
Kihnu 157.6 km
Turku Rajakari 164.3 km
Bagaskar 165.1 km
Turku Artukainen 167.2 km
Turku 169.1 km
Fagerholm 170.2 km
Mērsrags 172.3 km
Kiikala (Letiště) 177.5 km
Utö 179.6 km
Stende 187.2 km
Lohja 188.1 km
Pärnu (Letiště) 192.8 km
Kirkkonummi Makiluoto 195.5 km
Tallinn 200.8 km
Jokioinen 202.5 km
Ainaži 206.8 km
Kuusiku 213.4 km
Ventspils 217.0 km
Ventspils Intl. Airport 219.4 km
Vihti 229.0 km
Kokemäki 238.7 km
Saldus 238.9 km
Skulte 247.0 km
Riga Letiště 247.5 km
Dobele 248.4 km
Nurmijärvi 256.8 km
Jelgava 257.1 km
Tampere 263.2 km
Kumlinge 264.7 km
Töölö 266.0 km
Vanhakaupunki 266.1 km
Kustavi Isokari 268.7 km
Tampere 274.1 km
Hattula 274.8 km
Letiště Helsinky-Vantaa 275.1 km
Rajamäki 275.4 km
Mažeikiai 275.9 km
Hämeenlinna 277.5 km
Rauma Kylmapihlaja 279.5 km
Pori 279.7 km
Bogskär 279.7 km
Pori 281.6 km
Pāvilosta 282.1 km
Türi 289.9 km
Kankaanpää 296.3 km
Niinisalo 297.1 km
Bauska 303.0 km
Lumparland Langnas Harbour 304.0 km
Rūjiena 305.5 km
Mantsala Hirvihaara 313.0 km
Telšiai 313.9 km
Viljandi 316.1 km
Pori Tahkoluoto 316.6 km
Šiauliai 316.7 km
Šiauliai Letiště 322.8 km
Lammi 324.9 km
Kallbadagrund 326.0 km
Liepāja 326.8 km
Priekuļi 327.9 km
Porvoo Kilpilahti 332.4 km
Nyhamn 333.2 km
Juupajoki 334.8 km
Porvoo Emasalo 337.0 km
Jomala 338.5 km
Porvoo 342.0 km
Mariehamn / Aland Island 345.2 km
Skrīveri 350.6 km
Virrat Aijanneva 351.6 km
Laukuva 352.2 km
Biržai 357.0 km
Kauhajoki 359.7 km
Palanga 365.4 km
Halli 366.0 km
Halli (Letiště) 367.8 km
Raseiniai 369.5 km
Svenska Högarna 372.0 km
Svenska Högarna 372.4 km
Lahti 372.6 km
Panevėžys 373.1 km
Valga 378.2 km
Kristinestad Lighthouse 379.5 km
Pulkkilanharju Lighthouse 379.8 km
Väike-Maarja Parish 380.6 km

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