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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 - Dartford Distance
London City Airport 21.7 km
Biggin Hill 25.1 km
Kenley 38.9 km
St James's Park 41.3 km
London Stansted Airport 50.1 km
London Southend Airport 53.7 km
Gatwick Airport 56.1 km
Andrewsfield Aerodrome 56.9 km
Charlwood 60.8 km
Herstmonceux 61.1 km
Shoeburyness 67.4 km
Northolt 74.5 km
Heathrow Airport 76.3 km
Rothamsted Park 77.8 km
Luton Airport 83.1 km
Cambridge 85.5 km
Brighton City Airport 88.1 km
Lydd Airport 94.8 km
Mildenhall Royal Air Force 107.1 km
Wattisham Airport 111.4 km
Farnborough 112.6 km
Woburn 113.2 km
Lakenheath 115.6 km
Bedford 118.2 km
High Wycombe 118.3 km
Cranfield Airport 118.4 km
Manston 124.7 km
Langdon Bay 128.7 km
RAF Odiham 132.9 km
Marham 140.4 km
Thorney Island 145.9 km
Benson 149.7 km
Wittering 152.2 km
Holbeach Air Weapons Range 160.6 km
Boulogne-sur-Mer 170.9 km
Oxford Airport 178.7 km
Norwich Weather Centre 181.1 km
Wainfleet All Saints 184.3 km
Le Touquet 184.7 km
Coningsby 189.0 km
Southampton Airport 191.3 km
Barkston 192.5 km
Dieppe 192.8 km
St. Catherine's Point 195.2 km
Weybourne 195.6 km
Cranwell 195.9 km
Church Lawford 202.4 km
Middle Wallop 202.8 km
RAF Brize Norton 204.9 km
Waddington 210.2 km
Le Havre/Octeville 212.2 km
Sainte-Adresse 216.0 km
RAF Little Rissington 219.6 km
MoD Boscombe Down 222.8 km
Scampton 225.3 km
Fairford Airport 226.9 km
Donna Nook 227.4 km
Larkhill 227.8 km
Abbeville 229.5 km
Deauville-Saint-Gatien 230.2 km
Deauville-Saint-Gatien AP 230.4 km
East Midlands Airport 233.3 km
Dunkirk 237.6 km
Nottingham/Watnall 240.7 km
Bournemouth 241.2 km
Coleshill 243.3 km
Birmingham Airport 246.4 km
RAF Lyneham 247.9 km
Humberside 248.0 km
Rouen/Boos 251.5 km
Caen 261.8 km
Pershore 264.6 km
Doncaster Airport 265.8 km
Gloucestershire Airport 271.4 km
Koksijde 272.0 km
Cherbourg - Maupertus Airport 274.5 km
Coal Aston Airfield 278.7 km
Leconfield 282.0 km
Evreux/Fauville 290.4 km
Ostend Airport 294.3 km
Bridlington 300.2 km
Beauvais/Tille 303.1 km
Cap de la Hague 307.7 km
Cosford 310.4 km
Thorncliffe 310.4 km
Cosford 312.9 km
Cosford 312.9 km
Isle of Portland 315.6 km
Albert Airport 318.9 km
Méaulte 319.5 km
Emley Moor transmitting station 321.8 km
Yeovil 322.7 km
Beitem 326.9 km
Bristol / Lulsgate 328.7 km
Cormeilles 329.5 km
Zeebrugge 330.6 km
Alderney Channel Is 331.5 km
Lille Airport 333.0 km
Alencon/Valframbert 334.3 km
Linton-On-Ouse 334.4 km