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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 - Sirdal / Sinnes Distance
Sirdal / Sinnes 1.3 km
Blasjo 47.2 km
Eik Hove 61.5 km
Valle 77.2 km
Liarvatn 88.0 km
Konsmo 89.5 km
Hovden-lundane 92.3 km
Lista Lighthouse 95.9 km
Fister_sigmundstad 99.8 km
Sauda 100.6 km
Byglandsfjord/Solbakk 103.9 km
Lindesnes Lighthouse 104.5 km
Vaagsli 107.2 km
Mandal 116.1 km
Eigerøya 126.3 km
Våland 130.3 km
Stavanger/Sola 137.4 km
Saerheim 140.2 km
Nedre Vats 142.5 km
Obrestad Lighthouse 152.4 km
Kristiansand Airport 153.6 km
Dyranut Automated 154.2 km
Ullensvang Forsoks. 157.4 km
Hoydalsmo Ii 158.2 km
Oksøy Lighthouse 158.6 km
Kvitsoy - Nordbo 166.5 km
Fet I Eidfjord 170.1 km
Hynnekleiv 172.3 km
Kvamsoy 173.9 km
Mosstrand Ii 175.0 km
Tveitsund 180.8 km
Landvik 191.5 km
Jonshøgdi 193.3 km
Haugesund / Karmoy 193.4 km
Nelaug 194.8 km
Vossevangen 196.1 km
Voss 196.7 km
Midtstova 196.8 km
Mjølfjell 197.3 km
Finse 197.9 km
Stord Airport 198.8 km
Evanger 210.6 km
Alfjorden 210.9 km
Torungen Fyr 219.0 km
Fossmark 220.5 km
Upsanger Lake 224.5 km
Utsira 228.5 km
Geilo-oldebraten 229.1 km
Slatteroy Fyr 232.2 km
Gjerstad 236.8 km
Modalen Iii 238.1 km
Bergen 238.3 km
Bergen Airport 239.4 km
Sogndal / Haukasen 248.1 km
Vangsnes 250.3 km
Lærdal 250.6 km
Lyngor Fyr 252.4 km
Notodden 267.7 km
Fjaerland Bremuseet 277.4 km
Veggli 279.4 km
Hollekolten 280.8 km
Filefjell 283.7 km
Thyborøn 284.4 km
Hemsedal Ii 285.0 km
Takle 288.4 km
Silstrup 292.6 km
Jomfruland Lh 298.0 km
Forde / Bringeland 301.8 km
Bringeland Lufthavn 302.9 km
Nesbyen-todokk 308.1 km
Kongsberg Brannstasjon 314.6 km
Sognefjellet 316.8 km
Fedje 318.6 km
Stryn 333.7 km
Sandane 334.2 km
Furuneset 334.5 km
Gulsvik 341.7 km
Mejrup 341.9 km
Beitostølen 341.9 km
Loken I Volbu 342.2 km
Fagernes 345.5 km
Juvvasshoe 345.9 km
Brata-slettom 347.2 km
Hvide Sande 349.5 km
Fagernes Leirin 352.3 km
Grotli Iii 352.6 km
Florø 361.0 km
Stauning Airport 361.1 km
Langoytangen 361.6 km
Drammen Berskog 370.5 km
Tafjord 370.8 km
Kongsberg 371.8 km
Ørsta- Volda Airport 373.0 km
Aalestrup 375.3 km
Torp 376.1 km
Sande-galleberg 377.0 km
Borris 378.5 km
Karup 379.6 km
Ytteroyane Lh 384.0 km
Ytteroyane Lh 384.0 km