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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 - Byfleet Distance
Heathrow Airport 15.8 km
Northolt 22.9 km
Farnborough 33.9 km
Charlwood 34.5 km
Gatwick Airport 37.6 km
Kenley 42.3 km
St James's Park 42.4 km
High Wycombe 53.8 km
RAF Odiham 53.8 km
Rothamsted Park 53.8 km
Biggin Hill 54.9 km
Shoreham Airport 59.3 km
London City Airport 60.4 km
Luton Airport 60.9 km
Benson 76.6 km
Thorney Island 77.2 km
Woburn 77.5 km
Cranfield Airport 83.7 km
Gravesend Broadness 87.2 km
Bedford 98.3 km
London Stansted Airport 99.1 km
Herstmonceux 99.7 km
London Oxford Airport 110.1 km
Southampton Airport 114.5 km
Andrewsfield Aerodrome 119.5 km
Cambridge 120.6 km
Middle Wallop 124.1 km
St. Catherine's Point 124.8 km
London Southend Airport 131.5 km
RAF Brize Norton 131.9 km
Wittering 141.8 km
MoD Boscombe Down 144.1 km
Shoeburyness 145.6 km
RAF Little Rissington 148.0 km
Church Lawford 148.6 km
Larkhill 149.2 km
Fairford Airport 151.9 km
Mildenhall Royal Air Force 155.6 km
Lydd Airport 161.9 km
Bournemouth 164.0 km
Lakenheath 166.7 km
MoD Lyneham 170.5 km
Wattisham 180.9 km
Barkston 182.2 km
RAF Holbeach 183.8 km
Marham 186.3 km
Coleshill 186.3 km
Birmingham Airport 188.0 km
Cranwell 188.4 km
East Midlands Airport 191.5 km
Pershore 196.7 km
Coningsby 197.6 km
Gloucestershire Airport 198.0 km
Manston 202.2 km
Langdon Bay 203.5 km
Waddington 204.2 km
Nottingham/Watnall 205.4 km
Le Havre/Octeville 209.5 km
Wainfleet 211.6 km
Sainte-Adresse 212.5 km
Cherbourg - Maupertus Airport 218.1 km
Scampton 219.1 km
Deauville-Saint-Gatien 230.0 km
Deauville-Saint-Gatien AP 230.9 km
Dieppe 233.9 km
Filton 236.5 km
Isle of Portland 238.8 km
Caen 239.3 km
Boulogne-sur-Mer 239.6 km
Cap de la Hague 243.0 km
Coal Aston Airfield 243.8 km
Yeovil 244.0 km
Norwich Weather Centre 244.2 km
Doncaster Airport 245.4 km
Donna Nook 245.5 km
Cosford 248.6 km
Le Touquet 249.1 km
Bristol / Lulsgate 250.5 km
Humberside 250.8 km
Weybourne 251.6 km
Thorncliffe 260.6 km
Alderney Channel Is 263.8 km
Credenhill 272.8 km
Leconfield 282.6 km
Rouen/Boos 284.3 km
Emley Moor transmitting station 286.2 km
Shobdon 287.0 km
Abbeville 288.8 km
Shawbury 294.3 km
Manchester 302.1 km
Jersey Airport 304.5 km
Rostherne 309.6 km
Bridlington 309.8 km
Leeds Bradford Intl. Airport 311.2 km
Dunkeswell Airport 313.0 km
Dunkirk 313.3 km
Linton-On-Ouse 313.7 km
Bingley 316.3 km
Guernsey Airport 318.0 km
Evreux/Fauville 318.8 km