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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.


Estaciones meteorológicas cercanas - Tromso-holt Distancia
Tromso-holt 0.7 km
Tromsø 3.7 km
Tromsø Aeropuerto 4.1 km
Bardufoss 74.3 km
Torsvag Lh 91.6 km
Hekkingen Lighthouse 118.9 km
Dividalen II 127.6 km
Kvesmenes-Ryeng 133.9 km
Katterjåkk 153.3 km
Katterjakk 153.7 km
Skibotn 156.3 km
Valle de Tarfala 185.7 km
Straumsnes 188.6 km
Nikkaluokta 189.6 km
Rensjon 196.1 km
Kilpisjärvi 218.9 km
Kilpisjärvi 226.7 km
Sørkjosen 230.5 km
Parque nacional Stora Sjöfallet 236.5 km
Kiruna Aeropuerto 249.8 km
Ritsem 258.0 km
Evenes 274.4 km
Harstad 277.9 km
Latnivaara 294.1 km
Kvikkjokk Arrenjarka 307.7 km
Andøya 309.1 km
Naimakka 310.0 km
Gällivare 326.4 km
Nordstraum I Kvaenangen 332.7 km
Tjakaape 354.1 km
Skomvaer Fyr 356.2 km
Jokkmokk 360.9 km
Hasvik 371.0 km
Hasvik 372.1 km
Nattavaara 378.6 km
Arjeplog 398.4 km
Sortland 400.7 km
Hasvik-sluskfjellet 406.8 km
Karesuando 414.0 km
Vidsel 419.0 km
Vidsel 419.0 km
Arvidsjaur 428.0 km
Arvidsjaur aeropuerto 429.2 km
Lakatraesk 431.3 km
Mierkenis 441.8 km
Saittarova 442.7 km
Rognsundet 443.4 km
Buresjon 446.4 km
Stokmarknes 447.0 km
Setsa 462.9 km
Mala-Brannan 475.5 km
Parkalompolo 481.1 km
Älvsbyn 481.5 km
Paharova 482.9 km
Saltdal 492.4 km
Svolvær / Helle 494.3 km
Skrova Lighthouse 499.4 km
Boden Army Air Base 503.5 km
Gunnarn 508.3 km
Bo I Vesteralen 511.5 km
Hjartasen 552.7 km
Bodø 555.9 km
Luleå 558.7 km
Svartbyn 563.1 km
Pite-Ronnskar 566.2 km
Hemavan aeropuerto 589.9 km
Hemavan-Gierevarto 592.9 km
Rödkallen 595.0 km
Storforshei 597.4 km
Mo i Rana 620.3 km
Gielas 627.3 km
Susendal-Bjormo 664.8 km
Stekenjokk 688.0 km