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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.


Estações Meteorológicas Próximas - Islay Distância
Islay/Port Ellen 9.3 km
Ballypatrick Fst 49.8 km
Machrihanish 58.2 km
Portglenone 90.3 km
Magilligan 99.9 km
Aeroporto Internacional de Belfast 107.5 km
Belfast/Harbour 119.2 km
Lough Fea 123.0 km
Tiree Island 123.5 km
Eglinton Airport 125.5 km
Oban Aeroporto 126.7 km
Malin Head 131.4 km
Glenanne 158.9 km
RAF West Freugh 163.3 km
Prestwick 178.6 km
Glasgow Bishopton 186.2 km
Castlederg 186.9 km
Aonach Mòr 188.5 km
Glasgow Aeroporto 196.6 km
Bealach na Bà 205.1 km
Thomastown 213.1 km
Tulloch Bridge 214.3 km
Ballyhaise 214.7 km
Glen Ogle 225.1 km
South Uist Range 229.5 km
Benbecula 242.8 km
Aeroporto da Ilha de Man 243.5 km
Dublin Aeroporto 243.6 km
Donegal Airport 248.9 km
Aultbea 254.8 km
Dundrennan 259.1 km
Dublin Csmt Aero 259.7 km
Finner Camp 261.5 km
Mullingar 266.3 km
Loch Glascarnoch 272.4 km
Drumalbin 272.7 km
Strathallan 283.1 km
Stornoway 286.3 km
Sligo Aeroporto 307.6 km
St Bees Head 311.6 km
Aviemore 314.0 km
Edimburgo Aeroporto 317.4 km
Edinburgh Gogarbank 317.7 km
Oak Park 318.0 km
Inverness Airport 318.3 km
Valley 321.7 km
Cairngorms 328.1 km
Raf Mona 331.2 km
Eskdalemuir 333.2 km
Tain Air Weapons Range 347.2 km
Ireland West Airport 350.0 km
Altnaharra 352.5 km
Gurteen 352.8 km
Aberdaron 354.7 km
Keswick 355.4 km
Dundee/Riverside 364.0 km
Carlisle 366.7 km
Kinloss 367.2 km
Walney 367.3 km
Johnstown Castle 371.3 km
Capel Curig 376.3 km
Claremorris 376.7 km
Leuchars 378.8 km
Lossiemouth 394.0 km
Waterford Aeroporto 394.1 km
Rhyl 397.5 km
Aboyne 406.1 km
Blackpool Aeroporto 406.2 km
Shap 409.4 km
Spadeadam II 409.6 km
Spadeadam 409.6 km
Bala 418.6 km
Crosby 420.0 km
Warton Aerodrome Airport 422.9 km
Charterhall 422.9 km
Aberporth 427.6 km
Great Dun Fell 428.8 km
Sule Skerry 430.5 km
Warcop Range 435.7 km
Redesdale Camp 436.3 km
Lake Vyrnwy 440.1 km
Trawscoed 441.5 km
Shannon Airport 444.7 km
Hawarden 449.2 km
Liverpool AP 450.4 km
Belmullet 452.0 km
Milford Haven 453.6 km
Inverbervie 456.6 km
Stonyhurst 459.4 km
Wick 465.4 km
Aberdeen Airport 476.0 km
Pembrey Burrows 478.9 km
Roches Point 481.8 km
Mace Head 486.2 km
Sennybridge 488.0 km
Aeroporto de Cork 489.9 km
Rostherne 492.7 km
Shawbury 502.1 km
Manchester 502.7 km
Mumbles 513.1 km