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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 - North Rona Distance
Stornoway 114.1 km
Aultbea 140.0 km
Sule Skerry 157.7 km
Loch Glascarnoch 186.7 km
Bealach na Bà 188.8 km
Skye/Lusa 206.7 km
Benbecula 251.1 km
RAF Tain 252.3 km
South Uist Range 262.0 km
Inverness Airport 263.6 km
Aonach Mòr 271.9 km
Tulloch Bridge 278.7 km
Oban Airport 298.3 km
Kinloss 298.7 km
Aviemore 306.5 km
Tiree Island 312.9 km
Wick 313.1 km
Wick 313.1 km
Lossiemouth 318.7 km
Kirkwall Airport 325.2 km
Cairngorms 329.1 km
Tórshavn 337.9 km
Glen Ogle 342.3 km
The Cairnwell 364.4 km
Soervaag / Vagar 364.8 km
Islay/Port Ellen 383.1 km
Glasgow Bishopton 384.2 km
Strathallan 387.6 km
Glasgow Airport 391.9 km
Machrihanish 408.2 km
Prestwick 422.0 km
Dundee/Riverside 429.8 km
Ballypatrick Fst 437.2 km
Edinburgh Airport 445.9 km
Malin Head 447.7 km
Leuchars 448.6 km
Edinburgh Gogarbank 448.9 km
Drumalbin 452.2 km
Aberdeen Airport 454.9 km
Magilligan 455.7 km
Fair Isle 468.0 km
Inverbervie 469.1 km
Eglinton Airport 473.6 km
Sumburgh Cape 510.8 km
Eskdalemuir 513.1 km
Scatsa/Shetland Island 523.6 km
Lerwick 528.0 km
Charterhall 538.5 km
Spadeadam II 579.7 km
Redesdale Camp 580.1 km
Boulmer 623.9 km
Albemarle 632.1 km
Newcastle Airport 644.7 km