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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 - Hemsedal Distance
Hollekolten 3.2 km
Hemsedal Ii 9.9 km
Geilo-oldebraten 54.3 km
Filefjell 54.4 km
Beitostølen 59.4 km
Loken I Volbu 65.5 km
Nesbyen-todokk 77.8 km
Fagernes 80.3 km
Juvvasshoe 87.1 km
Fagernes Leirin 87.9 km
Sognefjellet 93.3 km
Finse 114.9 km
Lærdal 115.1 km
Veggli 117.6 km
Skåbu 120.5 km
Mosstrand Ii 123.2 km
Brata-slettom 129.7 km
Gulsvik 133.8 km
Dyranut Automated 139.7 km
Midtstova 140.6 km
Dombås 145.2 km
Fet I Eidfjord 148.0 km
Bjorli 153.7 km
Grotli Iii 155.4 km
Sogndal / Haukasen 156.4 km
Hoydalsmo Ii 158.5 km
Fokstua Ii 158.7 km
Notodden 166.1 km
Vest-torpa Ii 169.4 km
Mjølfjell 177.2 km
Vaagsli 179.0 km
Hjerkinn 184.7 km
Marstein 185.8 km
Kongsberg Brannstasjon 187.7 km
Kvitfjell 189.7 km
Mannen 190.5 km
Hovden-lundane 191.1 km
Tafjord 191.3 km
Fåvang 195.5 km
Venabu 196.2 km
Fjaerland Bremuseet 203.4 km
Tveitsund 206.2 km
Hønefoss 208.9 km
Vangsnes 209.9 km
Folldal 212.8 km
Valle 216.9 km
Ullensvang Forsoks. 217.1 km
Drammen Berskog 218.8 km
Lillehammer-Saetherengen 219.3 km
Kongsberg 223.4 km
Voss 226.2 km
Oppdal/Seter 226.5 km
Gjerstad 230.4 km
Vossevangen 234.7 km
Sande-galleberg 235.6 km
Asker 242.3 km
Tagdalen 245.1 km
Stryn 245.1 km
Molde / Aro 246.9 km
Nelaug 247.1 km
Blasjo 250.9 km
Hynnekleiv 253.4 km
Jomfruland Lh 253.7 km
Kise Pa Hedmark 255.2 km
Kristiansund / Kvernberget 255.8 km
Kvamsoy 256.6 km
Byglandsfjord/Solbakk 258.7 km
Bjornholt 259.0 km
Lyngor Fyr 259.1 km
Tryvasshogda 259.8 km
Apelsvoll 262.7 km
Blindern 266.9 km
Evanger 269.3 km
Torp 269.8 km
Hakadal 271.3 km
Melsomvik 274.2 km
Rekdal 275.3 km
Oseberg 276.7 km
Sauda 276.7 km
Torungen Fyr 276.9 km
Langoytangen 279.2 km
Gullholmen 280.2 km
Landvik 281.8 km
Sirdal / Sinnes 282.1 km
Modalen Iii 283.2 km
Hamar Airport 284.1 km
Sandane 286.4 km
Ås 286.5 km
Hamar 287.5 km
Tynset-hansmoen 288.8 km
Jonshøgdi 289.7 km
Evenstad 291.1 km
Soknedal 291.7 km
Oslo Airport 295.3 km
Hitra 295.7 km
Veiholmen 296.4 km
Kjeller Airport 298.6 km
Kristiansand Airport 300.8 km
Bringeland Lufthavn 301.2 km
Rygge 302.3 km

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