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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.


Estações Meteorológicas Próximas - Cheshunt Distância
Londres 24.1 km
St. James's Park 24.3 km
Aeroporto de Londres Stansted 36.0 km
Rothamsted Park 38.1 km
Biggin Hill 41.7 km
Aeroporto de Londres Luton 42.1 km
Kenley 44.6 km
Northolt 47.6 km
Aeroporto de Londres-Heathrow 52.6 km
Andrewsfield Aerodrome 58.1 km
Cambridge 60.7 km
Aeroporto de Londres Gatwick 63.5 km
Charlwood 65.6 km
Woburn 72.3 km
Bedford 76.3 km
Cranfield Airport 77.0 km
London Southend Airport 82.4 km
High Wycombe 85.4 km
Mildenhall Royal Air Force 93.7 km
Farnborough 93.9 km
Shoeburyness 97.1 km
Herstmonceux 98.1 km
Brighton City Airport 100.4 km
Lakenheath 104.0 km
Wittering 112.1 km
RAF Odiham 113.7 km
Benson 118.9 km
Wattisham Airport 119.9 km
Marham 125.1 km
Holbeach Air Weapons Range 132.0 km
Lydd Airport 136.3 km
Thorney Island 139.7 km
Oxford Airport 144.0 km
Barkston 153.0 km
Coningsby 154.7 km
Cranwell 157.2 km
Wainfleet All Saints 158.2 km
Manston 158.8 km
Church Lawford 162.0 km
Langdon Bay 166.4 km
Waddington 171.9 km
RAF Brize Norton 172.1 km
Southampton Aeroporto 176.3 km
Middle Wallop 181.3 km
Norwich Weather Centre 182.4 km
RAF Little Rissington 185.6 km
Scampton 187.2 km
St. Catherine's Point 188.0 km
Weybourne 189.4 km
Midlands Orientais Aeroporto 191.4 km
Fairford Aeroporto 195.6 km
Donna Nook 198.6 km
Nottingham/Watnall 198.8 km
MoD Boscombe Down 200.1 km
Coleshill 203.3 km
Larkhill 204.4 km
Birmingham Aeroporto 206.8 km
Bolonha do Mar 211.3 km
Humberside 212.6 km
RAF Lyneham 219.2 km
Bournemouth 224.9 km
Doncaster Aeroporto 225.2 km
Le Touquet-Paris-Plage 226.0 km
Pershore 228.2 km
Dieppe 233.6 km
Coal Aston Airfield 236.8 km
Gloucester Aeroporto 237.8 km
Le Havre/Octeville 241.5 km
Sainte-Adresse 245.2 km
Leconfield 246.3 km
Deauville-Saint-Gatien 260.7 km
Deauville-Saint-Gatien AP 260.9 km
Bridlington 267.6 km
Thorncliffe 268.8 km
Cosford 271.2 km
Abbeville 271.3 km
Dunquerque 273.2 km
Cosford 273.7 km
Cosford 273.7 km
Cherbourg - Maupertus Airport 278.7 km
Emley Moor 279.9 km
Caen 284.0 km
Rouen/Boos 291.3 km
Linton-On-Ouse 294.2 km
Isle of Portland 299.5 km
Yeovil 299.7 km
Aeroporto Internacional de Leeds Bradford 300.9 km
Aeroporto de Bristol 301.1 km
Fylingdales 305.1 km
Cabo de la Hague 305.7 km
Koksijde 306.6 km
Manchester 310.6 km
Credenhill 310.9 km
Bingley 311.2 km
Topcliffe 316.3 km
Shawbury 317.7 km
Rostherne 320.1 km
Shobdon 323.1 km
Alderney Channel Is 326.9 km
Oostende Aeroporto 327.6 km