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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 - Semily Distance
Liberec 37.9 km
Sněžka 46.9 km
Sněžka 49.3 km
Jelenia Góra 61.6 km
Bertsdorf-Hörnitz 70.8 km
Čáslav 71.9 km
Görlitz 72.9 km
Pardubice 77.9 km
Žižkov 101.5 km
Sohland an der Spree 110.4 km
Chýstovice 113.4 km
Polom 115.1 km
Libuš 115.9 km
Legnica 117.5 km
Přibyslav 120.0 km
Svratouch 122.3 km
Bad Muskau 124.9 km
Doksany 128.5 km
Lichtenhain/Mittelndorf 128.5 km
Václav Havel Airport Prague 129.8 km
Ústí nad Orlicí 140.8 km
Ústí nad Labem 142.3 km
Kłodzko 145.8 km
Hoyerswerda 149.6 km
Milešovka 154.3 km
Kostelní Myslová 155.2 km
Coschen 166.1 km
Cottbus 168.5 km
Dresden-Hosterwitz 169.4 km
Zielona Góra 173.6 km
Zinnwald-Georgenfeld 174.8 km
Náměšť nad Oslavou 177.5 km
Litschau 180.1 km
Reinberg 181.9 km
Copernicus Airport Wrocław 182.8 km
Dresden/Klotzsche 183.0 km
Dukovany 185.1 km
Temelín 185.9 km
Leszno 189.1 km
Klettwitz 189.9 km
České Budějovice 200.7 km
Kuchařovice 203.2 km
Šerák 204.3 km
Słubice 204.4 km
Kocelovice 205.4 km
Allentsteig 205.8 km
Luká 208.5 km
Retz 208.8 km
Weitra 209.4 km
Zwettl 213.4 km
Lübben - Blumenfelde 214.7 km
Garsebach 217.7 km
Brno 218.6 km
Lindenberg b. Beeskow 218.6 km
Tušimice 222.7 km
Doberlug-Kirchhain 224.3 km
Manschnow 226.3 km
Nossen 229.6 km
Gorzów Wielkopolski 230.9 km
Langenlois 232.8 km
Plzeň - Mikulka 233.8 km
Krems an der Donau 236.6 km
Prostějov 236.6 km
Bärnkopf 239.9 km
Marienberg 241.6 km
Jauerling 243.2 km
Müncheberg 245.3 km
Leiser Berge 248.1 km
Líně Airport 248.2 km
Churanov/Bohemian Forest 251.3 km
Poysdorf 253.6 km
Stockerau 255.4 km
Baruth 256.4 km
Poznań 258.6 km
Oschatz 258.7 km
Tulln 260.4 km
Mistelbach 260.6 km
Rohrbach 263.5 km
Fichtelberg 263.7 km
Cervena 264.1 km
Geringswalde 269.5 km
Holzdorf Airport 270.4 km
Grainet 270.8 km
Karlovy Vary 270.8 km
Amstetten 272.7 km
Chemnitz 272.9 km
Linz 273.0 km
Berlin Schönefeld Airport 276.4 km
Mariabrunn 276.6 km
Vienna / Hohe Warte 277.1 km
Lilienfeld 277.6 km
Donaustadt - Vienna 279.9 km
Vienna 282.3 km
Heckelberg-Brunow 283.4 km
Linz Airport 283.6 km
Holešov 285.5 km
Langenlipsdorf 285.7 km
Klitzschen 285.8 km
Marzahn 286.8 km
Zwiesel 286.9 km