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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 - Grenaa Distance
Aarhus/Tirstrup 27.5 km
Sletterhage 51.5 km
Gniben Point 62.7 km
Rosnaes Cape 71.8 km
Anholt 79.5 km
Oedum 83.0 km
Hald 87.9 km
Aarhus Syd 88.6 km
Holbæk 109.5 km
Odense 116.6 km
Stenhoj 122.7 km
Årslev 128.5 km
Flakkebjerg 131.3 km
Tylstrup 133.2 km
Horsens 133.6 km
Tysofte 136.1 km
Aalborg 136.4 km
Omø 138.8 km
Sindal Airport 140.5 km
Skagen 148.5 km
Nidingen 151.3 km
Svendborg Airport 155.1 km
Aalestrup 156.3 km
Vinga Lighthouse 157.6 km
Koebenhavn/Roskilde 166.8 km
Toroe 166.9 km
Nakkehoved 167.1 km
Brandelev 170.8 km
Langoe 173.2 km
Abed 179.3 km
Tesseboelle 180.0 km
Sjaelsmark 181.3 km
Hallands Väderö 187.2 km
Isenvad 190.6 km
Gothenburg 191.2 km
Måseskär 192.8 km
Karup 195.1 km
Kegnæs 195.6 km
Jægersborg 197.2 km
Sønderborg Airport 197.9 km
Vamdrup 200.9 km
Billund Airport 202.9 km
Westermarkelsdorf 205.7 km
Göteborg / Landvetter 211.0 km
Schönhagen 214.2 km
Helsingborg 215.2 km
Copenhagen Airport 216.1 km
Kiel Lighthouse 218.2 km
Askov 220.2 km
Vojens Airport 220.4 km
Ängelholm 221.1 km
Halmstad Airport 221.1 km
Vindebaek Kyst 221.4 km
Dragør Lighthouse 225.9 km
Ullared 227.2 km
Hohwacht 228.3 km
Glücksburg/Meierwik 229.5 km
Gedser Odde 233.0 km
Kiel/Holtenau 235.7 km
Väderöarna 238.9 km
Falsterbo 243.7 km
Mejrup 244.5 km
Dörnick 251.1 km
Torpup 251.4 km
Schleswig 252.2 km
Pelzerhaken/Neustadt i.H. 252.6 km
Borris 254.3 km
Silstrup 254.5 km
Ostenfeld 256.4 km
Jagel 260.6 km
Malmö 261.7 km
Ljungbyhed Airport 263.4 km
Boltenhagen 264.4 km
Trollhattan Lufthavn 266.4 km
Kirchdorf/Poel 269.5 km
Hohn 272.1 km
Hohn 272.4 km
Esbjerg 273.1 km
Koster Islands 273.6 km
Vester Vedsted 274.6 km
Leck 276.8 km
Warnemünde 277.3 km
Wittenborn 280.5 km
Padenstedt (Pony-Park) 280.7 km
Kroppefjall-Granan 282.1 km
Stauning Airport 283.3 km
Lübeck/Blankensee 284.7 km
Erfde 286.1 km
Hattstedt 288.8 km
Romo Island 289.0 km
Ferder 290.4 km
Langoytangen 292.3 km
Malmö Airport 295.5 km
Rångedala 297.0 km
Thyborøn 297.1 km
Stromtangen Lh 300.8 km
Itzehoe 301.0 km
Sanitz 301.3 km
Satenas 302.5 km
Barth 304.1 km

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