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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 - Sortland Distance
Sortland 0.0 km
Stokmarknes 46.3 km
Skomvaer Fyr 68.5 km
Svolvær / Helle 96.5 km
Andøya 102.9 km
Skrova Lighthouse 103.8 km
Bo I Vesteralen 111.8 km
Harstad 125.2 km
Evenes 142.4 km
Setsa 164.8 km
Bodø 186.5 km
Saltdal 189.6 km
Leknes 209.0 km
Helligvær 219.4 km
Mierkenis 229.7 km
Hjartasen 242.0 km
Ritsem 250.5 km
Straumsnes 251.6 km
Storforshei 266.7 km
Reipå 276.3 km
Mo i Rana 280.1 km
Hekkingen Lighthouse 285.6 km
Katterjakk 307.6 km
Katterjåkk 307.7 km
Hemavan Airport 313.0 km
Skamdal 314.8 km
Hemavan-Gierevarto 315.7 km
Værøy 320.5 km
Susendal-Bjormo 338.3 km
Seljelia 343.7 km
Stora Sjöfallet National Park 345.5 km
Kvikkjokk Arrenjarka 348.3 km
Bardufoss 349.7 km
Tarfala Valley 364.0 km
Gielas 364.2 km
Myken Lighthouse 387.6 km
Arjeplog 390.2 km
Røst Airport 390.7 km
Mosjøen Kjaerstad 398.7 km
Stekenjokk 399.9 km
Solvaer Iii 401.1 km
Tromso-holt 401.4 km
Tromsø Airport 403.6 km
Tromsø 404.3 km
Laksfors 407.8 km
Nikkaluokta 411.7 km
Buresjon 431.3 km
Sandnessjøen / Stokka 441.6 km
Majavatn 444.1 km
Tjøtta 454.7 km
Vilhelmina 468.2 km
Vilhelmina 468.2 km
Gunnarn 468.6 km
Gäddede 470.7 km
Dividalen II 477.1 km
Gubbhogen 481.2 km
Torsvag Lh 483.3 km
Tjakaape 492.3 km
Nordli-Holand 495.8 km
Rensjon 496.2 km
Bronnoysund / Bronnoy 499.0 km
Hoting 502.7 km
Vega-Vallsjo 512.0 km
Namsskogan 514.2 km
Mala-Brannan 518.0 km
Åsele 528.3 km
Arvidsjaur 540.5 km
Arvidsjaur Airport 542.5 km
Gartland 562.9 km
Lycksele 574.4 km
Kjobli I Snasa 590.0 km
Fredrika 591.3 km
Norsjö 595.8 km
Namsos Airport 626.1 km
Rorvik / Ryum 633.2 km
Petistrask 647.8 km
Steinkjer 671.8 km