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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 - Altnaharra Distance
Altnaharra 2.6 km
Tain Air Weapons Range 73.7 km
Loch Glascarnoch 77.8 km
Sule Skerry 90.7 km
Inverness Airport 92.0 km
Kinloss 119.8 km
Aviemore 136.9 km
Aultbea 139.0 km
Lossiemouth 140.2 km
Wick 152.6 km
Cairngorms 156.8 km
Tulloch Bridge 157.8 km
Bealach na Bà 167.0 km
Aonach Mòr 170.8 km
Kirkwall Airport 188.5 km
Glen Ogle 205.1 km
Stornoway 207.9 km
Aboyne 222.9 km
Oban Airport 226.2 km
Strathallan 230.7 km
Dundee/Riverside 257.3 km
Glasgow Bishopton 262.1 km
Glasgow Airport 265.8 km
Leuchars 274.4 km
Aberdeen Airport 276.3 km
Edinburgh Airport 284.9 km
Edinburgh Gogarbank 287.4 km
Inverbervie 289.5 km
Drumalbin 304.9 km
Prestwick 305.5 km
Tiree Island 334.2 km
Benbecula 335.7 km
South Uist Range 340.7 km
Machrihanish 343.6 km
Fair Isle 343.7 km
Islay/Port Ellen 349.5 km
Eskdalemuir 356.2 km
Charterhall 365.6 km
RAF West Freugh 381.9 km
Dundrennan 387.7 km
Ballypatrick Fst 391.5 km
Sumburgh Cape 394.2 km
Carlisle 405.5 km
Redesdale Camp 410.1 km
Spadeadam II 415.3 km
Spadeadam 415.3 km
Lerwick 418.9 km
Scatsa/Shetland Island 425.4 km
St Bees Head 426.5 km
Keswick 430.5 km
Belfast/Harbour 436.7 km
Portglenone 438.2 km
Magilligan 442.4 km
Belfast Intl. Airport 445.6 km
Boulmer 448.3 km
Malin Head 454.0 km
Great Dun Fell 456.2 km
Albemarle 460.4 km
Shap 462.4 km
Isle of Man Airport 464.7 km
Eglinton Airport 466.1 km
Warcop Range 469.3 km
Newcastle Intl. Airport 472.1 km
Lough Fea 472.9 km
Walney 479.9 km
Baltasound 486.7 km
Tórshavn 489.0 km
Glenanne 501.8 km
Soervaag / Vagar 525.8 km
Castlederg 526.8 km
Teesside Intl. Airport 536.2 km
Leeming 547.6 km
Thomastown 559.0 km
Donegal Airport 560.9 km
Ballyhaise 564.5 km
Topcliffe 566.5 km
Loftus Samos 573.6 km
Linton-On-Ouse 589.1 km
Linton-On-Ouse 589.1 km
Finner Camp 593.7 km
Fylingdales 604.5 km
Sligo Airport 638.5 km
Bridlington 664.9 km