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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 - Machynlleth Distancia
Lake Vyrnwy 34.5 km
Trawscoed 35.7 km
Bala 40.7 km
Sennybridge 56.7 km
Capel Curig 64.0 km
Rhyl 80.3 km
Shobdon 99.2 km
Hawarden 105.4 km
Aberporth 106.2 km
Raf Mona 106.4 km
Mumbles 115.0 km
Credenhill 115.3 km
Aberdaron 115.7 km
Valley 118.4 km
Pembrey Burrows 118.9 km
Shawbury 119.7 km
Crosby 126.5 km
Liverpool aeropuerto 128.7 km
St Athan 132.7 km
Cardiff Aeropuerto 136.5 km
Blackpool Aeropuerto 153.9 km
Cosford 157.3 km
Cosford 157.3 km
Cosford 159.7 km
Warton Aerodrome aeropuerto 160.5 km
Liscombe 165.3 km
Chivenor Airfield 171.7 km
Brístol aeropuerto 172.2 km
Rostherne 172.8 km
Milford Haven 176.9 km
Isla Walney 179.9 km
Mánchester 181.8 km
Gloucestershire Aeropuerto 188.7 km
Pershore 193.0 km
Dunkeswell Aeropuerto 196.9 km
la Isla de Man aeropuerto 196.9 km
Stonyhurst 198.0 km
North Wyke 201.0 km
Thorncliffe 203.0 km
Exeter Aeropuerto 206.2 km
Yeovil 211.8 km
St Bees Head 217.0 km
Birmingham Aeropuerto 221.2 km
Lyneham Airfield 225.4 km
Coleshill 226.5 km
Keswick 235.9 km
Fairford Aeropuerto 235.9 km
RAF Little Rissington 238.6 km
Shap 243.7 km
Bingley 248.1 km
Plymouth MtBatten 249.7 km
Dundrennan 250.5 km
Cardinham 252.5 km
RAF Brize Norton 254.5 km
Emley Moor transmitting station 256.1 km
Larkhill 261.9 km
Warcop Range 265.3 km
Church Lawford 266.5 km
Coal Aston Airfield 267.4 km
Región de las Tierras Medias Orientales Aeropuerto 267.5 km
Isla de Pórtland 268.0 km
MoD Boscombe Down 268.6 km
Leeds Bradford aeropuerto 271.7 km
Great Dun Fell 274.3 km
Newquay Cornwall aeropuerto 275.6 km
Carlisle 276.2 km
Nottingham/Watnall 278.7 km
Oxford aeropuerto 278.9 km
Middle Wallop 286.5 km
RAF West Freugh 288.4 km
Bournemouth 288.6 km
Dublín Aeropuerto 297.9 km
Spadeadam 305.1 km
Spadeadam II 305.1 km
Benson 309.9 km
Leeming 310.2 km
Eskdalemuir 310.3 km
Johnstown Castle 311.6 km
Dublin Csmt Aero 313.2 km
Camborne 315.8 km
Topcliffe 317.0 km
Southampton Aeropuerto 317.6 km
Doncaster Aeropuerto 318.4 km
Linton-On-Ouse 320.0 km
Culdrose Airfield 324.5 km
Belfast/Harbour 330.2 km
Teesside aeropuerto 333.9 km
Drumalbin 338.8 km
High Wycombe 339.2 km
Albemarle 340.8 km
Prestwick 341.4 km
Redesdale Camp 341.9 km
RAF Odiham 342.0 km
Punta de St. Catherine 347.9 km
Cranfield Aeropuerto 349.4 km
Woburn 352.3 km
Barkston 353.5 km
Newcastle upon Tyne aeropuerto 354.4 km
Oak Park 355.8 km
Farnborough 358.1 km