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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 - Fredrikstad Distance
Stromtangen Lh 15.3 km
Sarpsborg 19.8 km
Rygge 26.0 km
Koster Islands 35.1 km
Gullholmen 47.8 km
Ferder 50.5 km
Ås 52.0 km
Oseberg 56.7 km
Melsomvik 67.0 km
Väderöarna 71.2 km
Torp 76.1 km
Kjeller Airport 83.0 km
Blindern 83.4 km
Tryvasshogda 89.6 km
Asker 90.5 km
Sande-galleberg 92.9 km
Langoytangen 93.3 km
Bjornholt 95.8 km
Hakadal 99.4 km
Aurskog 103.3 km
Kongsberg 104.7 km
Oslo Airport 109.1 km
Drammen Berskog 109.2 km
Blomskog 126.2 km
Måseskär 129.2 km
Hønefoss 130.0 km
Kongsberg Brannstasjon 152.8 km
Kroppefjall-Granan 154.5 km
Jomfruland Lh 157.9 km
Kongsvinger 158.5 km
Apelsvoll 162.4 km
Skagen 165.7 km
Kise Pa Hedmark 170.9 km
Hamar 173.9 km
Hamar Airport 175.4 km
Trollhattan Lufthavn 184.2 km
Vinga Lighthouse 187.7 km
Flisa Ii 192.9 km
Arvika 193.7 km
Notodden 196.7 km
Gulsvik 196.8 km
Gothenburg 201.1 km
Sindal Airport 204.8 km
Lyngor Fyr 210.3 km
Lillehammer-Saetherengen 211.8 km
Stenhoj 212.0 km
Vest-torpa Ii 213.9 km
Satenas 214.4 km
Gjerstad 217.5 km
Rena-Haugedalen 219.2 km
Veggli 220.1 km
Göteborg / Landvetter 226.2 km
Nidingen 234.4 km
Evenstad 241.8 km
Naven 247.7 km
Tylstrup 248.6 km
Luro Automated 250.1 km
Nesbyen-todokk 250.6 km
Sunne 251.4 km
Hallum 251.8 km
Torungen Fyr 255.5 km
Fåvang 259.3 km
Kvitfjell 262.5 km
Aalborg 262.8 km
Nelaug 265.3 km
Karlstad Airport 266.9 km
Fagernes Leirin 268.2 km
Trysil Vegstasjon 270.0 km
Tveitsund 271.2 km
Fagernes 272.0 km
Anholt 280.0 km
Venabu 282.0 km
Landvik 286.8 km
Hynnekleiv 290.1 km
Rångedala 291.9 km
Loken I Volbu 296.2 km
Hald 306.0 km
Skåbu 306.6 km
Ullared 306.6 km
Hoydalsmo Ii 307.8 km
Aalestrup 313.8 km
Mosstrand Ii 315.3 km
Drevsjø 316.6 km
Beitostølen 317.3 km
Hemsedal Ii 318.0 km
Aarhus/Tirstrup 319.1 km
Hollekolten 326.0 km
Oedum 331.8 km
Gustavsfors 333.1 km
Tynset-hansmoen 334.6 km
Folldal 336.0 km
Kristiansand Airport 337.7 km
Geilo-oldebraten 338.9 km
Torpup 340.8 km
Sletterhage 344.8 km
Malung 345.5 km
Skovde AP 346.0 km
Oksøy Lighthouse 346.1 km
Halmstad Airport 346.6 km
Hallands Väderö 350.1 km