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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 - Guildford Distance
Farnborough 23.0 km
Heathrow Airport 29.8 km
Northolt 37.1 km
Charlwood 39.5 km
RAF Odiham 41.6 km
Gatwick Airport 43.7 km
Kenley 53.8 km
Shoreham Airport 54.6 km
High Wycombe 56.4 km
St James's Park 57.6 km
Thorney Island 61.5 km
Biggin Hill 66.8 km
Rothamsted Park 67.7 km
Benson 72.6 km
Luton Airport 74.4 km
London City Airport 74.8 km
Woburn 87.3 km
Cranfield Airport 93.3 km
Southampton Airport 99.9 km
Gravesend Broadness 100.4 km
Herstmonceux 104.9 km
London Oxford Airport 107.2 km
St. Catherine's Point 109.1 km
Bedford 109.9 km
Middle Wallop 111.7 km
London Stansted Airport 114.7 km
RAF Brize Norton 126.2 km
MoD Boscombe Down 131.9 km
Andrewsfield Aerodrome 134.8 km
Cambridge 136.2 km
Larkhill 137.3 km
RAF Little Rissington 142.9 km
Fairford Airport 144.5 km
London Southend Airport 144.9 km
Bournemouth 149.6 km
Church Lawford 150.8 km
Wittering 153.4 km
Shoeburyness 158.7 km
MoD Lyneham 161.1 km
Lydd Airport 170.2 km
Mildenhall Royal Air Force 171.3 km
Lakenheath 182.4 km
Coleshill 186.6 km
Birmingham Airport 187.6 km
Gloucestershire Airport 191.4 km
Pershore 192.5 km
Barkston 192.9 km
Wattisham Airport 196.0 km
East Midlands Airport 196.2 km
RAF Holbeach 198.4 km
Cranwell 199.6 km
Marham 202.0 km
Le Havre/Octeville 202.6 km
Cherbourg - Maupertus Airport 202.8 km
Sainte-Adresse 205.4 km
Coningsby 210.7 km
Nottingham/Watnall 211.2 km
Langdon Bay 213.7 km
Manston 213.8 km
Waddington 215.3 km
Deauville-Saint-Gatien 223.3 km
Deauville-Saint-Gatien AP 224.1 km
Isle of Portland 224.3 km
Wainfleet 226.3 km
Filton 226.7 km
Cap de la Hague 227.2 km
Caen 228.6 km
Scampton 230.1 km
Yeovil 231.5 km
Dieppe 235.3 km
Bristol / Lulsgate 239.9 km
Cosford 246.6 km
Boulogne-sur-Mer 247.5 km
Alderney Channel Is 248.1 km
Coal Aston Airfield 249.4 km
Doncaster Airport 253.8 km
Le Touquet 255.8 km
Donna Nook 259.2 km
Norwich Weather Centre 259.7 km
Thorncliffe 262.4 km
Humberside 262.7 km
Credenhill 266.0 km
Weybourne 267.3 km
Shobdon 280.9 km
Rouen/Boos 283.5 km
Jersey Airport 288.8 km
Emley Moor transmitting station 291.2 km
Shawbury 291.6 km
Abbeville 293.9 km
Leconfield 294.0 km
Dunkeswell Airport 300.3 km
Guernsey Airport 302.2 km
Manchester 303.3 km
Cardiff Airport 309.1 km
Rostherne 310.4 km
Evreux/Fauville 316.7 km
Leeds Bradford Intl. Airport 316.9 km
St Athan 319.7 km
Alencon/Valframbert 320.4 km
Exeter Airport 320.6 km