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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 - Porthcawl Distance
St Athan 30.3 km
Mumbles 33.4 km
Cardiff Aéroport 40.5 km
Liscombe 44.0 km
Royal Marines Base Chivenor 65.7 km
Sennybridge 67.3 km
Pembrey Burrows 79.2 km
North Wyke 80.9 km
Dunkeswell (Aéroport) 84.6 km
Exeter Aéroport 87.4 km
Trawscoed 101.3 km
Bristol (Aéroport) 109.6 km
Credenhill 121.4 km
Aberporth 121.6 km
Shobdon 126.0 km
Yeovil 129.6 km
Plymouth MtBatten 132.1 km
Lake Vyrnwy 144.9 km
Cardinham 151.8 km
Milford Haven 152.5 km
Bala 160.6 km
Île de Portland 174.7 km
Gloucestershire Aéroport 177.8 km
Capel Curig 183.3 km
Newquay Cornouailles (Aéroport) 183.7 km
Aberdaron 186.0 km
Shawbury 187.6 km
RAF Lyneham 190.1 km
Rhyl 200.3 km
Pershore 200.5 km
Cosford 202.8 km
Cosford 202.8 km
Cosford 204.2 km
Hawarden 205.1 km
Raf Mona 212.9 km
Larkhill 213.6 km
Fairford Aéroport 214.0 km
Vallée 218.7 km
MoD Boscombe Down 219.6 km
Bournemouth 221.2 km
Camborne 227.2 km
RAF Little Rissington 227.7 km
Liverpool AP 228.0 km
Royal Naval Air Station Culdrose 231.5 km
Crosby 236.7 km
RAF Brize Norton 238.4 km
Middle Wallop 240.1 km
Birmingham Aéroport 244.7 km
Coleshill 251.4 km
Alderney Channel Is 256.4 km
Rostherne 256.6 km
Guernesey Aéroport 257.0 km
Manchester 262.1 km
Southampton Aéroport 263.7 km
Thorncliffe 265.9 km
Blackpool Aéroport 266.8 km
Aéroport d'Oxford Kidlington 268.1 km
Warton Aerodrome (Aéroport) 269.0 km
Hague 276.6 km
Église Lawford 281.7 km
St. Catherine's Point 284.7 km
Benson 290.1 km
Ploumanac'h 293.7 km
Stonyhurst 296.7 km
Walney 298.7 km
Jersey Aéroport 300.7 km
Lannion Aéroport 302.9 km
Midlands de l'Est Aéroport 304.5 km
RAF Odiham 307.7 km
Aéroport du Ronaldsway 308.5 km
Brignogan-Plages 317.0 km
Thorney Island 317.6 km
Morlaix/Ploujean 318.7 km
Cherbourg (Aéroport) 320.0 km
Nottingham/Watnall 321.8 km
High Wycombe 323.7 km
Coal Aston Airfield 324.9 km
Johnstown Castle 325.2 km
Farnborough 327.2 km
Émetteur d'Emley Moor 328.8 km
Landivisiau 330.0 km
Bingley 331.1 km
St Mary de Scilly 336.6 km
St Bees Head 339.1 km
Saint-Brieuc Armor 339.5 km
Guipavas 344.3 km
Cranfield Aéroport 349.8 km
Woburn 350.5 km
Leeds-Bradford (Aéroport) 351.1 km
Keswick 354.9 km
Shap 355.6 km
Dublin Aéroport 358.0 km
Londres-Heathrow (Aéroport) 361.7 km
Lanvéoc/Poulmic 363.2 km
Ouessant 363.6 km
Northolt 364.3 km
Dublin Csmt aérien 365.9 km
Bedford 367.7 km
Dinard/Pleurtuit 368.5 km
Dundrennan 372.1 km