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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.


Stations météo à proximité - Swansea Distance
Pembrey Burrows 45.8 km
Royal Marines Base Chivenor 56.8 km
St Athan 63.6 km
Liscombe 68.6 km
Sennybridge 68.9 km
Cardiff Aéroport 73.7 km
Trawscoed 86.4 km
North Wyke 89.3 km
Aberporth 90.4 km
Exeter Aéroport 112.4 km
Dunkeswell (Aéroport) 114.0 km
Milford Haven 119.7 km
Plymouth MtBatten 135.4 km
Cardinham 140.6 km
Bristol (Aéroport) 142.2 km
Lake Vyrnwy 143.5 km
Credenhill 143.7 km
Shobdon 144.2 km
Bala 155.4 km
Aberdaron 158.8 km
Yeovil 162.9 km
Newquay Cornouailles (Aéroport) 168.2 km
Capel Curig 170.4 km
Raf Mona 193.0 km
Rhyl 195.3 km
Vallée 196.6 km
Shawbury 200.7 km
Gloucestershire Aéroport 206.1 km
Île de Portland 206.8 km
Hawarden 209.8 km
Camborne 210.9 km
Royal Naval Air Station Culdrose 217.2 km
Cosford 221.6 km
Cosford 221.6 km
RAF Lyneham 221.7 km
Cosford 223.3 km
Pershore 226.6 km
Liverpool AP 233.4 km
Crosby 237.8 km
Fairford Aéroport 244.5 km
Larkhill 246.4 km
MoD Boscombe Down 252.6 km
Bournemouth 254.7 km
RAF Little Rissington 257.1 km
Blackpool Aéroport 266.9 km
Rostherne 267.4 km
RAF Brize Norton 268.6 km
Birmingham Aéroport 269.0 km
Warton Aerodrome (Aéroport) 271.3 km
Middle Wallop 273.0 km
Manchester 274.0 km
Coleshill 275.6 km
Thorncliffe 282.5 km
Guernesey Aéroport 282.7 km
Alderney Channel Is 285.8 km
Aéroport du Ronaldsway 288.6 km
Johnstown Castle 291.8 km
Walney 294.8 km
Southampton Aéroport 297.0 km
Aéroport d'Oxford Kidlington 298.0 km
Stonyhurst 303.3 km
Hague 307.2 km
Église Lawford 308.1 km
Ploumanac'h 309.0 km
St Mary de Scilly 316.2 km
St. Catherine's Point 318.1 km
Lannion Aéroport 318.1 km
Benson 321.2 km
Brignogan-Plages 322.5 km
Dublin Aéroport 326.3 km
Midlands de l'Est Aéroport 327.3 km
Jersey Aéroport 328.1 km
Morlaix/Ploujean 330.0 km
St Bees Head 330.4 km
Dublin Csmt aérien 333.6 km
Landivisiau 337.7 km
RAF Odiham 340.2 km
Bingley 343.2 km
Nottingham/Watnall 343.6 km
Coal Aston Airfield 343.6 km
Émetteur d'Emley Moor 343.8 km
Guipavas 349.4 km
Keswick 350.8 km
Thorney Island 350.8 km
Cherbourg (Aéroport) 351.7 km
Waterford Aéroport 352.3 km
Oak Park 354.5 km
High Wycombe 354.6 km
Shap 356.7 km
Dundrennan 359.4 km
Farnborough 359.5 km
Saint-Brieuc Armor 359.9 km
Ouessant 362.2 km
Leeds-Bradford (Aéroport) 364.5 km
Lanvéoc/Poulmic 368.3 km
Warcop Range 376.3 km
Cranfield Aéroport 379.0 km
Woburn 379.9 km
RAF West Freugh 380.5 km