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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.


Estaciones meteorológicas cercanas - Brecon Distancia
Sennybridge 29.9 km
St Athan 58.9 km
Cardiff Aeropuerto 59.8 km
Shobdon 66.0 km
Credenhill 67.0 km
Trawscoed 77.7 km
Mumbles 78.2 km
Lake Vyrnwy 91.2 km
Brístol aeropuerto 96.0 km
Liscombe 97.5 km
Bala 110.5 km
Pembrey Burrows 112.1 km
Dunkeswell Aeropuerto 120.3 km
Shawbury 125.1 km
Chivenor Airfield 127.3 km
Exeter Aeropuerto 132.9 km
Yeovil 133.2 km
Aberporth 133.6 km
Gloucestershire Aeropuerto 136.2 km
North Wyke 141.8 km
Capel Curig 143.3 km
Cosford 143.4 km
Cosford 143.4 km
Hawarden 144.1 km
Cosford 145.1 km
Rhyl 148.0 km
Pershore 152.2 km
Lyneham Airfield 162.1 km
Liverpool aeropuerto 166.6 km
Aberdaron 177.5 km
Crosby 177.7 km
Fairford Aeropuerto 179.6 km
Raf Mona 184.2 km
Milford Haven 187.3 km
RAF Little Rissington 188.4 km
Isla de Pórtland 188.7 km
Birmingham Aeropuerto 192.5 km
Plymouth MtBatten 193.6 km
Rostherne 193.9 km
Larkhill 194.2 km
Valley 194.3 km
Coleshill 198.9 km
Mánchester 199.5 km
MoD Boscombe Down 200.8 km
RAF Brize Norton 201.9 km
Thorncliffe 204.9 km
Blackpool Aeropuerto 208.2 km
Warton Aerodrome aeropuerto 208.9 km
Cardinham 213.7 km
Bournemouth 214.8 km
Middle Wallop 220.2 km
Oxford aeropuerto 229.9 km
Church Lawford 233.3 km
Stonyhurst 234.6 km
Isla Walney 243.1 km
Newquay Cornwall aeropuerto 244.3 km
Southampton Aeropuerto 248.9 km
Región de las Tierras Medias Orientales Aeropuerto 249.6 km
Benson 256.7 km
Coal Aston Airfield 265.5 km
Nottingham/Watnall 265.6 km
Emley Moor transmitting station 267.1 km
Bingley 268.5 km
Punta de St. Catherine 276.3 km
la Isla de Man aeropuerto 276.3 km
Alderney Channel Is 279.5 km
RAF Odiham 282.2 km
Camborne 287.4 km
St Bees Head 288.3 km
Leeds Bradford aeropuerto 288.9 km
High Wycombe 288.9 km
Guernsey aeropuerto 291.3 km
Culdrose Airfield 292.6 km
Cabo de la Hague 294.6 km
Shap 295.8 km
Keswick 299.0 km
Farnborough 300.1 km
Thorney Island 300.9 km
Cranfield Aeropuerto 308.4 km
Woburn 310.0 km
Warcop Range 311.9 km
Doncaster Aeropuerto 315.5 km
Great Dun Fell 322.9 km
Bedford 324.4 km
Dundrennan 326.3 km
Jersey Aeropuerto 329.5 km
Londres-Heathrow aeropuerto 330.4 km
Cherbourg - Maupertus aeropuerto 331.4 km
Northolt 332.0 km
Wittering 333.9 km
Linton-On-Ouse 333.9 km
Barkston 334.0 km
Leeming 334.2 km
Londres-Luton aeropuerto 335.7 km
Topcliffe 336.3 km
Carlisle 336.8 km
Rothamsted Park 337.0 km
Cranwell 343.0 km
Ploumanac'h 344.6 km
Waddington 347.4 km