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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 - Barmouth Distance
Trawscoed 42.9 km
Capel Curig 44.5 km
Bala 56.1 km
Lake Vyrnwy 65.0 km
Raf Mona 70.4 km
Aberdaron 76.4 km
Valley 80.0 km
Rhyl 85.2 km
Aberporth 86.6 km
Sennybridge 86.8 km
Pembrey Burrows 116.5 km
Mumbles 127.9 km
Hawarden 128.8 km
Crosby 139.8 km
Shobdon 139.9 km
Liverpool AP 150.1 km
Shawbury 154.3 km
Credenhill 155.9 km
Milford Haven 158.5 km
St Athan 160.9 km
Blackpool Airport 162.7 km
Isle of Man Airport 165.0 km
Cardiff Airport 166.4 km
Warton Aerodrome Airport 173.0 km
Walney 179.2 km
RM Chivenor 181.7 km
Liscombe 188.2 km
Cosford 194.4 km
Cosford 194.4 km
Cosford 196.9 km
Rostherne 199.0 km
St Bees Head 205.8 km
Manchester 208.9 km
Bristol / Lulsgate 209.6 km
Stonyhurst 215.6 km
North Wyke 217.2 km
Dunkeswell Airport 225.1 km
Gloucestershire Airport 229.4 km
Exeter Airport 231.3 km
Dundrennan 231.7 km
Keswick 233.1 km
Pershore 233.2 km
Thorncliffe 234.8 km
Yeovil 247.5 km
Shap 249.8 km
Cardinham 255.2 km
RAF West Freugh 257.4 km
Dublin Airport 257.5 km
Birmingham Airport 259.6 km
Plymouth MtBatten 262.4 km
Coleshill 264.7 km
RAF Lyneham 265.8 km
Bingley 271.8 km
Dublin Csmt Aero 273.1 km
Newquay Airport 273.6 km
Warcop Range 274.5 km
Carlisle 274.5 km
Fairford Airport 276.6 km
Johnstown Castle 277.1 km
RAF Little Rissington 279.1 km
Great Dun Fell 281.9 km
Emley Moor transmitting station 283.3 km
Belfast/Harbour 292.0 km
RAF Brize Norton 295.1 km
Leeds Bradford Airport 296.2 km
Coal Aston Airfield 298.8 km
Larkhill 301.9 km
Isle of Portland 302.5 km
Eskdalemuir 303.2 km
East Midlands Airport 303.3 km
Church Lawford 305.2 km
Spadeadam 308.4 km
Spadeadam II 308.4 km
MoD Boscombe Down 308.6 km
Camborne 311.1 km
Nottingham/Watnall 313.2 km
Prestwick 316.4 km
Oak Park 317.6 km
Oxford Airport 319.3 km
Glenanne 320.4 km
RNAS Culdrose 321.5 km
Drumalbin 324.0 km
Belfast Intl. Airport 324.4 km
Middle Wallop 326.7 km
Bournemouth 327.2 km
Leeming 330.9 km
Topcliffe 339.6 km
Waterford Airport 343.1 km
Linton-On-Ouse 344.8 km
Linton-On-Ouse 344.8 km
Redesdale Camp 346.9 km
Doncaster Airport 349.3 km
Benson 350.4 km
Albemarle 351.9 km
Glasgow Airport 352.9 km
Machrihanish 352.9 km
Teesside Intl. Airport 353.3 km
Southampton Airport 357.5 km
Glasgow Bishopton 358.2 km
Portglenone 358.6 km