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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 - Drammen Berskog Distance
Drammen Berskog 0.9 km
Kongsberg 5.2 km
Sande-galleberg 18.0 km
Asker 37.2 km
Hønefoss 47.9 km
Kongsberg Brannstasjon 55.1 km
Oseberg 60.2 km
Gullholmen 61.9 km
Torp 62.5 km
Melsomvik 62.5 km
Tryvasshogda 66.6 km
Blindern 70.5 km
Bjornholt 71.6 km
Ås 74.7 km
Rygge 84.4 km
Langoytangen 85.7 km
Hakadal 88.9 km
Gulsvik 89.8 km
Ferder 91.2 km
Notodden 102.2 km
Stromtangen Lh 102.9 km
Kjeller Airport 105.4 km
Veggli 112.5 km
Jomfruland Lh 115.0 km
Oslo Airport 118.3 km
Sarpsborg 122.2 km
Vest-torpa Ii 130.4 km
Apelsvoll 133.5 km
Koster Islands 135.4 km
Kise Pa Hedmark 135.8 km
Nesbyen-todokk 141.5 km
Lillehammer-Saetherengen 152.4 km
Gjerstad 155.1 km
Hamar Airport 157.6 km
Hamar 158.6 km
Lyngor Fyr 163.1 km
Aurskog 163.9 km
Fagernes Leirin 164.5 km
Väderöarna 166.3 km
Fagernes 167.3 km
Fåvang 187.0 km
Kvitfjell 187.9 km
Loken I Volbu 190.9 km
Tveitsund 194.6 km
Nelaug 204.3 km
Venabu 208.2 km
Torungen Fyr 208.5 km
Hemsedal Ii 208.5 km
Skåbu 210.9 km
Beitostølen 211.7 km
Evenstad 212.4 km
Rena-Haugedalen 213.5 km
Hoydalsmo Ii 215.3 km
Mosstrand Ii 215.4 km
Kongsvinger 215.8 km
Hollekolten 216.4 km
Måseskär 225.6 km
Blomskog 226.5 km
Hynnekleiv 227.6 km
Skagen 227.8 km
Geilo-oldebraten 230.5 km
Flisa Ii 231.2 km
Landvik 235.5 km
Sindal Airport 246.8 km
Stenhoj 260.5 km
Folldal 261.0 km
Kroppefjall-Granan 263.7 km
Filefjell 272.8 km
Fokstua Ii 275.8 km
Dombås 278.1 km
Hjerkinn 278.4 km
Arvika 280.3 km
Tylstrup 281.7 km
Kristiansand Airport 282.9 km
Byglandsfjord/Solbakk 284.1 km
Tynset-hansmoen 284.2 km
Vinga Lighthouse 284.7 km
Juvvasshoe 287.3 km
Aalborg 292.8 km
Trysil Vegstasjon 293.0 km
Trollhattan Lufthavn 293.8 km
Valle 293.9 km
Oksøy Lighthouse 294.5 km
Dyranut Automated 297.2 km
Finse 302.5 km
Hovden-lundane 303.0 km
Gothenburg 305.4 km
Vaagsli 306.3 km
Sognefjellet 308.9 km
Oppdal/Seter 316.5 km
Drevsjø 318.3 km
Satenas 323.1 km
Fet I Eidfjord 324.0 km
Lærdal 326.9 km
Midtstova 331.5 km
Göteborg / Landvetter 332.9 km
Nidingen 333.3 km
Sunne 334.2 km
Aalestrup 335.4 km
Røros Airport 338.8 km