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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 - Orkney / Hoy Distance
Kirkwall Airport 54.6 km
Wick 57.1 km
Sule Skerry 115.7 km
Lossiemouth 128.0 km
RAF Tain 132.3 km
Kinloss 136.7 km
Inverness Airport 165.7 km
Aviemore 191.8 km
Cairngorms 196.4 km
Fair Isle 208.4 km
Loch Glascarnoch 210.2 km
The Cairnwell 220.4 km
Aberdeen Airport 226.9 km
Inverbervie 256.6 km
Sumburgh Cape 258.5 km
Tulloch Bridge 266.1 km
Dundee/Riverside 271.7 km
Aultbea 274.0 km
Lerwick 282.6 km
Leuchars 283.3 km
Strathallan 286.0 km
Aonach Mòr 287.9 km
Scatsa/Shetland Island 290.1 km
Glen Ogle 290.9 km
Bealach na Bà 302.7 km
Skye/Lusa 323.3 km
Edinburgh Airport 324.1 km
Edinburgh Gogarbank 327.1 km
Stornoway 334.4 km
Oban Airport 348.6 km
Baltasound 351.3 km
Glasgow Airport 353.1 km
Glasgow Bishopton 353.5 km
Drumalbin 363.2 km
Charterhall 369.2 km
Prestwick 395.3 km
Eskdalemuir 396.1 km
Redesdale Camp 417.0 km
Boulmer 432.0 km
Spadeadam II 434.3 km
Spadeadam 434.3 km
Carlisle 439.7 km
Carlisle Lake District Airport 441.6 km
Dundrennan 456.8 km
Albemarle 459.6 km
Machrihanish 460.0 km
Newcastle Airport 465.7 km
Tiree Island 469.7 km
Benbecula 469.8 km
Keswick 474.0 km
South Uist Range 474.9 km
Islay/Port Ellen 475.9 km
Great Dun Fell 476.5 km
RAF West Freugh 477.6 km
St Bees Head 483.9 km
Warcop Range 490.0 km
Shap 491.6 km
Ballypatrick Fst 512.8 km
Tórshavn 513.6 km
Walney 528.1 km
Durham Tees Valley Airport 531.8 km
Leeming 548.0 km
Isle of Man Airport 549.1 km
Belfast/Harbour 549.1 km
Loftus Samos 554.3 km
Soervaag / Vagar 560.6 km
Portglenone 560.7 km
Belfast Intl. Airport 563.7 km
Topcliffe 564.8 km
Magilligan 571.1 km
Fylingdales 584.8 km
Malin Head 586.3 km
Linton-On-Ouse 586.9 km
Linton-On-Ouse 586.9 km
Eglinton Airport 595.6 km
Lough Fea 597.4 km
Glenanne 620.0 km
Bridlington 639.9 km
Castlederg 657.0 km
Thomastown 687.4 km
Ballyhaise 689.2 km