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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 - Barra Distance
South Uist Range 34.4 km
Benbecula 48.7 km
Tiree Island 86.3 km
Stornoway 181.7 km
Malin Head 184.4 km
Skye/Lusa 185.2 km
Islay/Port Ellen 200.3 km
Bealach na Bà 200.8 km
Magilligan 214.9 km
Eglinton Airport 221.5 km
Aultbea 222.2 km
Oban Airport 237.6 km
Donegal Airport 241.0 km
Ballypatrick Fst 249.4 km
Castlederg 257.9 km
Machrihanish 263.2 km
Portglenone 264.6 km
Lough Fea 265.4 km
Aonach Mòr 277.5 km
Finner Camp 293.9 km
Loch Glascarnoch 295.6 km
Belfast Intl. Airport 296.0 km
Thomastown 299.4 km
Tulloch Bridge 306.7 km
Belfast/Harbour 320.6 km
Glenanne 327.0 km
Sligo Airport 329.6 km
Ballyhaise 329.8 km
Glasgow Bishopton 348.1 km
Glen Ogle 355.1 km
Glasgow Airport 359.8 km
Prestwick 360.6 km
Altnaharra 363.2 km
RAF West Freugh 369.5 km
Ireland West Airport Knock 377.3 km
Inverness Airport 382.5 km
Mullingar 386.3 km
RAF Tain 398.9 km
Aviemore 403.0 km
Claremorris 403.3 km
Sule Skerry 408.4 km
Belmullet 418.9 km
Dublin Airport 419.7 km
Strathallan 421.3 km
Cairngorms 425.0 km
Dublin Csmt Aero 427.8 km
Kinloss 437.7 km
Drumalbin 442.5 km
Gurteen 447.3 km
The Cairnwell 449.3 km
Isle of Man Airport 452.7 km
Dundrennan 456.2 km
Lossiemouth 466.3 km
Edinburgh Airport 471.9 km
Edinburgh Gogarbank 473.8 km
Mace Head 491.6 km
Dundee/Riverside 497.7 km
Eskdalemuir 509.9 km
St Bees Head 510.4 km
Wick 510.8 km
Valley 529.9 km
Raf Mona 540.6 km
Keswick 548.6 km
Walney 568.4 km
Capel Curig 585.7 km
Rhyl 607.5 km
Blackpool Airport 609.9 km
Woodvale 621.6 km
Crosby 625.6 km