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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 - Littlehampton Distance
Brighton City Airport 28.1 km
Thorney Island 43.4 km
Charlwood 51.1 km
Gatwick Airport 55.1 km
Farnborough 59.7 km
RAF Odiham 67.0 km
Kenley 74.6 km
Heathrow Airport 76.2 km
Northolt 82.7 km
Biggin Hill 86.4 km
St. Catherine's Point 88.7 km
St James's Park 90.3 km
Herstmonceux 95.1 km
Southampton Airport 97.1 km
London City Airport 101.4 km
High Wycombe 102.7 km
Benson 110.9 km
Rothamsted Park 113.7 km
Luton Airport 121.0 km
Middle Wallop 121.4 km
Woburn 135.6 km
MoD Boscombe Down 141.5 km
Cranfield Airport 141.9 km
Bournemouth 144.7 km
Oxford Airport 144.9 km
London Stansted Airport 147.7 km
Larkhill 147.9 km
Le Havre/Octeville 156.8 km
Bedford 157.8 km
RAF Brize Norton 157.8 km
Sainte-Adresse 159.4 km
London Southend Airport 161.5 km
Andrewsfield Aerodrome 164.0 km
Lydd Airport 164.8 km
Cherbourg - Maupertus Airport 165.1 km
Fairford Airport 170.9 km
Shoeburyness 173.2 km
RAF Little Rissington 174.9 km
Cambridge 175.1 km
Deauville-Saint-Gatien 177.6 km
Deauville-Saint-Gatien AP 177.8 km
Caen 180.2 km
RAF Lyneham 180.3 km
Church Lawford 194.9 km
Cap de la Hague 197.0 km
Wittering 201.8 km
Dieppe 205.8 km
Mildenhall Royal Air Force 207.6 km
Langdon Bay 212.9 km
Isle of Portland 215.7 km
Lakenheath 217.7 km
Gloucestershire Airport 218.2 km
Manston 218.4 km
Alderney Channel Is 221.3 km
Wattisham Airport 221.9 km
Pershore 224.6 km
Coleshill 226.9 km
Birmingham Airport 227.1 km
Yeovil 234.8 km
Boulogne-sur-Mer 237.6 km
Marham 239.6 km
Barkston 241.2 km
Le Touquet 241.4 km
Holbeach Air Weapons Range 242.6 km
East Midlands Airport 242.8 km
Rouen/Boos 247.8 km
Cranwell 248.4 km
Bristol / Lulsgate 251.8 km
Jersey Airport 255.9 km
Coningsby 257.4 km
Nottingham/Watnall 258.2 km
Waddington 263.5 km
Wainfleet All Saints 270.0 km
Alencon/Valframbert 272.7 km
Abbeville 273.7 km
Guernsey Airport 275.8 km
Evreux/Fauville 278.1 km
Scampton 278.3 km
Cosford 282.1 km
Cosford 284.3 km
Cosford 284.3 km
Credenhill 289.9 km
Norwich Weather Centre 290.7 km
Coal Aston Airfield 296.1 km
Dinard/Pleurtuit 300.0 km
Dunkeswell Airport 301.4 km
Weybourne 302.0 km
Doncaster Airport 302.3 km
Thorncliffe 305.1 km
Shobdon 307.4 km
Donna Nook 307.4 km
Laval Airport 309.1 km
Humberside 310.5 km
Cardiff Airport 319.8 km
Exeter Airport 319.8 km
Dunkirk 320.3 km
Shawbury 325.5 km
Le Mans/Arnage 329.4 km
St Athan 329.9 km
Beauvais/Tille 330.2 km