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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.


Poblíž povětrnostní stanice - South Wales Vzdálenost
St Athan 0.7 km
Cardiff Letiště 10.0 km
Liscombe 39.8 km
Dunkeswell (Letiště) 63.7 km
Mumbles 64.0 km
Exeter Letiště 73.7 km
Sennybridge 76.8 km
Bristol / Lulsgate 79.5 km
RM Chivenor 87.2 km
North Wyke 87.5 km
Yeovil 99.5 km
Credenhill 103.6 km
Pembrey Burrows 109.7 km
Shobdon 112.7 km
Trawscoed 119.5 km
Plymouth MtBatten 139.1 km
Portland 147.1 km
Lake Vyrnwy 150.1 km
Aberporth 150.2 km
Gloucestershire Letiště 151.9 km
RAF Lyneham 160.8 km
Bala 168.3 km
Cardinham 169.7 km
Pershore 176.8 km
Shawbury 177.5 km
Milford Haven 183.0 km
Larkhill 183.2 km
Fairford (Letiště) 185.6 km
Cosford 186.5 km
Cosford 186.5 km
Cosford 187.6 km
MoD Boscombe Down 189.2 km
Bournemouth 190.9 km
Capel Curig 196.9 km
RAF Little Rissington 200.4 km
Hawarden 202.6 km
Newquay (Letiště) 203.9 km
Rhyl 206.8 km
Middle Wallop 209.6 km
RAF Brize Norton 210.3 km
Aberdaron 211.0 km
Birmingham Letiště 222.4 km
Liverpool (Letiště) 224.5 km
Coleshill 229.1 km
Raf Mona 231.7 km
Alderney Channel Is 232.1 km
Southampton Letiště 233.1 km
Crosby 236.9 km
Guernsey (Letiště) 237.5 km
Valley 239.2 km
Oxford (Letiště) 240.2 km
Rostherne 247.3 km
Camborne 247.4 km
RNAS Culdrose 250.1 km
Cap de la Hague 250.8 km
Thorncliffe 251.1 km
Manchester 251.8 km
St. Catherine's Point 254.3 km
Church Lawford 257.1 km
Benson 261.1 km
Blackpool Letiště 267.5 km
Warton Aerodrome (Letiště) 267.7 km
RAF Odiham 277.6 km
Jersey Letiště 278.9 km
East Midlands Letiště 283.3 km
Ploumanac'h 285.2 km
Thorney Island 287.0 km
Stonyhurst 291.1 km
Cherbourg - Maupertus (Letiště) 292.6 km
Lannion Letiště 294.5 km
High Wycombe 294.8 km
Farnborough 297.1 km
Nottingham/Watnall 301.5 km
Walney 302.6 km
Coal Aston Airfield 307.5 km
Morlaix/Ploujean 314.0 km
Emley Moor transmitting station 314.9 km
Brignogan-Plages 317.9 km
Bingley 319.9 km
Cranfield (Letiště) 322.3 km
Woburn 322.8 km
Saint-Brieuc Armor 325.2 km
Isle of Man (Letiště) 326.5 km
Landivisiau 328.7 km
Letiště London Heathrow 332.2 km
Northolt 334.9 km
Letiště Leeds Bradford 338.6 km
Bedford 340.7 km
Letiště London Luton 345.3 km
Rothamsted Park 345.3 km
Guipavas 345.4 km
St Bees Head 347.0 km
Dinard/Pleurtuit 348.2 km
Shap 354.6 km
Doncaster Letiště 355.5 km
Johnstown Castle 355.7 km
Brighton City (Letiště) 356.3 km
Wittering 357.3 km
Charlwood 357.7 km
Keswick 358.5 km