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United Kingdom

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
Wisley 1.8 km
London Heathrow Airport 14.9 km
Farnborough 21.6 km
Northolt 22.5 km
Kenley 27.0 km
Charlwood 28.3 km
Gatwick Airport 28.4 km
St. James's Park 30.6 km
Biggin Hill 33.7 km
RAF Odiham 34.4 km
London City Airport 40.4 km
High Wycombe 45.3 km
Rothamsted Park 52.6 km
Benson 53.2 km
Gravesend Broadness 54.9 km
Shoreham Airport 57.1 km
Luton Airport 59.7 km
East Malling and Larkfield 64.4 km
Thorney Island 67.2 km
Herstmonceux 73.4 km
Writtle 74.7 km
Woburn 76.6 km
London Stansted Airport 78.1 km
Middle Wallop 79.5 km
London Oxford Airport 81.0 km
Southampton Airport 81.2 km
Cranfield Airport 82.3 km
London Southend Airport 85.2 km
Andrewsfield Aerodrome 88.2 km
RAF Brize Norton 89.3 km
MoD Boscombe Down 91.5 km
Shoeburyness 92.4 km
Larkhill 94.2 km
Bedford 98.3 km
Fairford Airport 98.7 km
St. Catherine's Point 101.9 km
RAF Little Rissington 102.0 km
Cambridge 106.4 km
Lydd Airport 106.9 km
MoD Lyneham 107.1 km
Moulton Park 107.5 km
Girton 107.5 km
Bournemouth 113.7 km
Monks Wood 119.9 km
Barrow 124.4 km
Church Lawford 127.4 km
Wattisham 131.1 km
Gloucestershire Airport 131.7 km
Mildenhall Royal Air Force 132.3 km
Swanage 132.3 km
Coventry Airport 134.6 km
Lakenheath 140.0 km
Wittering 140.9 km
Pershore 141.3 km
Santon Downham 146.7 km
Birmingham Airport 151.8 km
Coleshill 152.9 km
Marham 162.8 km
Sutton Bonington 173.6 km
RAF Holbeach 175.5 km
East Midlands Airport 177.2 km
Barkston 181.9 km
Cranwell 187.3 km
Coningsby 195.8 km