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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 - London WC Distance
St James's Park 3.2 km
London City Airport 16.8 km
Kenley 23.9 km
Biggin Hill 25.5 km
Northolt 36.0 km
Heathrow Airport 39.3 km
Gatwick Airport 41.9 km
Rothamsted Park 42.7 km
Charlwood 44.2 km
Gravesend Broadness 45.7 km
Luton Airport 49.5 km
London Stansted Airport 55.2 km
Andrewsfield Aerodrome 74.1 km
Farnborough 78.6 km
Woburn 78.7 km
Shoreham Airport 78.8 km
High Wycombe 80.1 km
Cambridge 82.3 km
Herstmonceux 83.6 km
Cranfield Airport 84.3 km
London Southend Airport 88.2 km
Bedford 88.8 km
RAF Odiham 98.6 km
Shoeburyness 102.8 km
Benson 111.1 km
Mildenhall Royal Air Force 114.0 km
Thorney Island 120.6 km
Lakenheath 124.7 km
Wittering 127.7 km
Lydd Airport 131.3 km
Wattisham Airport 135.3 km
London Oxford Airport 140.2 km
Marham 146.4 km
RAF Holbeach 153.0 km
Southampton Airport 160.2 km
Manston 162.5 km
Church Lawford 165.3 km
RAF Brize Norton 166.2 km
Langdon Bay 167.0 km
Middle Wallop 168.3 km
St. Catherine's Point 169.2 km
Barkston 169.6 km
Cranwell 173.8 km
Coningsby 174.6 km
Wainfleet 179.5 km
RAF Little Rissington 180.9 km
MoD Boscombe Down 187.8 km
Fairford Airport 188.7 km
Waddington 189.4 km
Larkhill 192.5 km
Norwich Weather Centre 199.3 km
East Midlands Airport 199.4 km
Scampton 204.7 km
Coleshill 206.5 km
Boulogne-sur-Mer 208.4 km
Weybourne 208.9 km
Nottingham/Watnall 209.3 km
Birmingham Airport 209.4 km
Bournemouth 209.5 km
MoD Lyneham 210.3 km
Donna Nook 218.5 km
Dieppe 221.1 km
Le Touquet 221.2 km
Le Havre/Octeville 221.7 km
Sainte-Adresse 225.3 km
Pershore 226.5 km
Humberside 231.7 km
Gloucestershire Airport 232.6 km
Doncaster Airport 239.7 km
Deauville-Saint-Gatien 241.2 km
Deauville-Saint-Gatien AP 242.1 km
Coal Aston Airfield 247.5 km
Cherbourg - Maupertus Airport 257.7 km
Caen 262.6 km
Abbeville 264.6 km
Leconfield 264.8 km
Cosford 273.0 km
Thorncliffe 274.9 km
Dunkirk 275.8 km
Filton 276.4 km
Rouen/Boos 277.1 km
Isle of Portland 284.3 km
Cap de la Hague 286.0 km
Bridlington 287.7 km
Yeovil 287.8 km
Emley Moor transmitting station 290.8 km
Bristol / Lulsgate 291.7 km
Credenhill 307.1 km
Alderney Channel Is 307.9 km
Linton-On-Ouse 308.8 km
Koksijde 310.0 km
Leeds Bradford Intl. Airport 313.3 km
Evreux/Fauville 314.5 km
Manchester 317.3 km
Shawbury 319.4 km
Shobdon 319.7 km
Bingley 321.9 km
Fylingdales 323.5 km
Rostherne 325.7 km
Topcliffe 331.1 km