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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 - Ballycastle Distance
Portglenone 47.8 km
Islay/Port Ellen 56.1 km
Belfast Intl. Airport 57.9 km
Machrihanish 58.9 km
Belfast/Harbour 71.9 km
Magilligan 87.1 km
Lough Fea 88.5 km
Eglinton Airport 110.5 km
Glenanne 111.5 km
Malin Head 131.4 km
RAF West Freugh 141.7 km
Oban Airport 165.5 km
Tiree Island 166.0 km
Castlederg 166.5 km
Ballyhaise 177.8 km
Prestwick 180.1 km
Thomastown 184.8 km
Dublin Airport 193.9 km
Glasgow Bishopton 198.8 km
Glasgow Airport 207.5 km
Isle of Man Airport 209.8 km
Dublin Csmt Aero 210.5 km
Aonach Mòr 224.9 km
Mullingar 225.4 km
Donegal Airport 242.5 km
Finner Camp 243.4 km
Dundrennan 244.0 km
Glen Ogle 247.3 km
Tulloch Bridge 247.9 km
Bealach na Bà 253.0 km
Oak Park 270.7 km
South Uist Range 272.6 km
Drumalbin 275.1 km
Valley 281.0 km
Benbecula 286.8 km
Sligo Airport 288.6 km
Raf Mona 291.9 km
St Bees Head 293.5 km
Strathallan 298.6 km
Aultbea 303.0 km
Aberdaron 310.1 km
Gurteen 314.5 km
Loch Glascarnoch 315.0 km
Johnstown Castle 322.0 km
Edinburgh Airport 324.9 km
Edinburgh Gogarbank 324.9 km
Ireland West Airport 327.2 km
Eskdalemuir 329.8 km
Stornoway 336.1 km
Capel Curig 339.4 km
Keswick 341.0 km
Aviemore 342.7 km
Walney 345.6 km
Waterford Airport 346.8 km
Inverness Airport 352.2 km
Claremorris 352.8 km
Cairngorms 354.3 km
Carlisle 357.6 km
Rhyl 364.8 km
Dundee/Riverside 377.8 km
Blackpool Airport 381.6 km
Aberporth 382.1 km
Tain Air Weapons Range 382.6 km
Bala 382.7 km
Leuchars 391.0 km
Crosby 392.4 km
Altnaharra 394.1 km
Shap 395.1 km
Kinloss 398.3 km
Warton Aerodrome Airport 398.9 km
Trawscoed 400.1 km
Spadeadam 402.9 km
Spadeadam II 402.9 km
Lake Vyrnwy 404.0 km
Milford Haven 405.4 km
Shannon Airport 411.4 km
Great Dun Fell 417.4 km
Hawarden 419.1 km
Liverpool AP 422.4 km
Warcop Range 423.0 km
Lossiemouth 423.8 km
Charterhall 425.0 km
Aboyne 426.8 km
Redesdale Camp 432.9 km
Pembrey Burrows 433.4 km
Stonyhurst 438.3 km
Belmullet 439.4 km
Roches Point 439.8 km
Sennybridge 447.3 km
Cork Airport 449.3 km
Mace Head 463.7 km
Rostherne 467.4 km
Mumbles 468.9 km
Shawbury 470.9 km
Inverbervie 472.1 km
Sule Skerry 474.6 km
Manchester 477.8 km
Shobdon 489.4 km
Aberdeen Airport 494.8 km