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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 - Stromtangen Lh Distance
Stromtangen Lh 1.3 km
Rygge 25.8 km
Ferder 34.0 km
Koster Islands 34.1 km
Sarpsborg 36.3 km
Gullholmen 41.0 km
Oseberg 44.7 km
Melsomvik 52.9 km
Ås 56.0 km
Torp 61.5 km
Väderöarna 68.6 km
Langoytangen 77.1 km
Sande-galleberg 84.4 km
Blindern 87.4 km
Asker 88.2 km
Tryvasshogda 92.7 km
Kjeller Airport 93.0 km
Kongsberg 96.8 km
Bjornholt 99.6 km
Drammen Berskog 101.6 km
Hakadal 105.8 km
Aurskog 118.9 km
Oslo Airport 119.1 km
Hønefoss 128.0 km
Måseskär 128.3 km
Kongsberg Brannstasjon 141.2 km
Blomskog 141.2 km
Jomfruland Lh 141.8 km
Skagen 156.0 km
Kroppefjall-Granan 165.3 km
Apelsvoll 169.6 km
Kongsvinger 174.5 km
Kise Pa Hedmark 177.5 km
Hamar 183.1 km
Notodden 183.9 km
Hamar Airport 184.3 km
Vinga Lighthouse 187.5 km
Gulsvik 190.9 km
Sindal Airport 192.5 km
Trollhattan Lufthavn 193.4 km
Lyngor Fyr 194.0 km
Stenhoj 200.7 km
Gjerstad 201.6 km
Gothenburg 204.5 km
Flisa Ii 207.9 km
Arvika 209.9 km
Veggli 209.9 km
Vest-torpa Ii 213.9 km
Lillehammer-Saetherengen 215.8 km
Satenas 225.5 km
Rena-Haugedalen 230.4 km
Göteborg / Landvetter 231.2 km
Nidingen 235.2 km
Tylstrup 235.7 km
Torungen Fyr 239.1 km
Nesbyen-todokk 243.4 km
Nelaug 249.2 km
Aalborg 249.7 km
Evenstad 250.4 km
Tveitsund 256.0 km
Naven 260.7 km
Fåvang 261.9 km
Hallum 262.9 km
Luro Automated 263.4 km
Fagernes Leirin 263.9 km
Kvitfjell 264.7 km
Fagernes 267.3 km
Sunne 267.7 km
Landvik 270.4 km
Hynnekleiv 273.9 km
Anholt 276.7 km
Karlstad Airport 282.4 km
Trysil Vegstasjon 284.4 km
Venabu 284.5 km
Loken I Volbu 291.3 km
Hoydalsmo Ii 293.9 km
Hald 294.7 km
Aalestrup 300.1 km
Rångedala 301.0 km
Mosstrand Ii 302.6 km
Skåbu 304.7 km
Hemsedal Ii 310.3 km
Aarhus/Tirstrup 310.6 km
Ullared 311.5 km
Beitostølen 312.3 km
Hollekolten 318.0 km
Oedum 321.0 km
Kristiansand Airport 321.3 km
Geilo-oldebraten 328.8 km
Drevsjø 329.3 km
Oksøy Lighthouse 329.6 km
Sletterhage 335.8 km
Folldal 338.7 km
Byglandsfjord/Solbakk 340.0 km
Tynset-hansmoen 341.3 km
Silstrup 343.5 km
Aarhus Syd 344.5 km
Torpup 346.1 km
Gniben Point 347.1 km
Gustavsfors 349.5 km