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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 - Wisley Distance
Heathrow Airport 18.2 km
Northolt 24.7 km
Charlwood 32.6 km
Farnborough 33.6 km
Gatwick Airport 36.6 km
Kenley 41.8 km
St James's Park 42.8 km
RAF Odiham 53.9 km
High Wycombe 55.2 km
Biggin Hill 55.6 km
Rothamsted Park 55.8 km
Brighton City Airport 57.5 km
London City Airport 61.0 km
Luton Airport 63.1 km
Thorney Island 75.5 km
Benson 78.0 km
Woburn 79.3 km
Cranfield Airport 85.7 km
Herstmonceux 99.2 km
Bedford 100.2 km
London Stansted Airport 100.3 km
Oxford Airport 111.3 km
Southampton Airport 113.8 km
Andrewsfield Aerodrome 120.8 km
Cambridge 122.1 km
St. Catherine's Point 123.6 km
Middle Wallop 123.8 km
London Southend Airport 132.4 km
RAF Brize Norton 133.1 km
MoD Boscombe Down 143.8 km
Wittering 144.1 km
Shoeburyness 146.4 km
Larkhill 149.0 km
RAF Little Rissington 149.3 km
Church Lawford 150.7 km
Fairford Airport 152.8 km
Mildenhall Royal Air Force 157.4 km
Lydd Airport 161.6 km
Bournemouth 163.3 km
Lakenheath 168.0 km
RAF Lyneham 171.1 km
Wattisham Airport 182.2 km
Barkston 184.0 km
Holbeach Air Weapons Range 185.9 km
Coleshill 187.6 km
Marham 187.8 km
Birmingham Airport 189.2 km
Cranwell 190.9 km
East Midlands Airport 193.9 km
Pershore 197.5 km
Gloucestershire Airport 199.2 km
Coningsby 199.5 km
Manston 202.3 km
Langdon Bay 203.3 km
Waddington 206.0 km
Nottingham/Watnall 207.3 km
Le Havre/Octeville 207.7 km
Sainte-Adresse 210.8 km
Wainfleet All Saints 213.6 km
Cherbourg - Maupertus Airport 216.5 km
Scampton 221.0 km
Deauville-Saint-Gatien 228.2 km
Deauville-Saint-Gatien AP 228.5 km
Dieppe 232.7 km
Caen 237.5 km
Isle of Portland 238.1 km
Boulogne-sur-Mer 239.0 km
Cap de la Hague 241.6 km
Yeovil 243.8 km
Coal Aston Airfield 245.9 km
Norwich Weather Centre 246.7 km
Doncaster Airport 247.6 km
Le Touquet 248.4 km
Cosford 249.7 km
Donna Nook 249.9 km
Bristol / Lulsgate 250.9 km
Cosford 252.2 km
Cosford 252.2 km
Humberside 252.7 km
Weybourne 253.6 km
Alderney Channel Is 262.6 km
Thorncliffe 262.8 km
Credenhill 273.4 km
Rouen/Boos 282.9 km
Leconfield 284.8 km
Abbeville 287.9 km
Emley Moor transmitting station 288.3 km
Shobdon 288.4 km
Shawbury 295.3 km
Jersey Airport 303.1 km
Manchester 303.5 km
Bridlington 311.6 km
Rostherne 311.7 km
Leeds Bradford Airport 312.9 km
Dunkeswell Airport 312.9 km
Dunkirk 313.1 km
Linton-On-Ouse 316.0 km
Guernsey Airport 316.7 km
Evreux/Fauville 317.3 km
Bingley 318.4 km