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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 - Hatfield Distance
Rothamsted Park 17.0 km
Luton Airport 21.9 km
St James's Park 28.9 km
Northolt 33.5 km
Heathrow Airport 39.8 km
London City Airport 40.7 km
Kenley 51.6 km
Woburn 52.0 km
London Stansted Airport 52.2 km
Biggin Hill 54.3 km
Cranfield Airport 57.2 km
Bedford 59.8 km
High Wycombe 65.4 km
Gatwick Airport 66.9 km
Cambridge 67.0 km
Charlwood 67.5 km
Andrewsfield Aerodrome 76.0 km
Farnborough 80.3 km
RAF Odiham 99.0 km
Benson 99.2 km
Wittering 99.7 km
Brighton City Airport 102.3 km
London Southend Airport 103.5 km
Mildenhall Royal Air Force 103.7 km
Herstmonceux 112.6 km
Lakenheath 114.5 km
Shoeburyness 118.2 km
Oxford Airport 123.2 km
Thorney Island 130.4 km
Holbeach Air Weapons Range 131.2 km
Marham 132.8 km
Wattisham Airport 137.1 km
Barkston 140.9 km
Church Lawford 141.4 km
Cranwell 146.1 km
Coningsby 148.5 km
RAF Brize Norton 151.6 km
Lydd Airport 156.1 km
Wainfleet All Saints 158.6 km
Waddington 161.2 km
Southampton Airport 162.2 km
Middle Wallop 164.5 km
RAF Little Rissington 164.8 km
East Midlands Airport 172.6 km
Fairford Airport 175.3 km
Scampton 176.5 km
St. Catherine's Point 177.2 km
Manston 180.0 km
Nottingham/Watnall 181.1 km
Coleshill 182.5 km
MoD Boscombe Down 182.6 km
Birmingham Airport 185.9 km
Larkhill 186.6 km
Langdon Bay 187.4 km
Norwich Weather Centre 196.2 km
Donna Nook 196.4 km
RAF Lyneham 199.6 km
Weybourne 200.1 km
Humberside 204.6 km
Pershore 207.1 km
Bournemouth 209.7 km
Doncaster Airport 211.1 km
Gloucestershire Airport 217.0 km
Coal Aston Airfield 219.5 km
Boulogne-sur-Mer 231.7 km
Leconfield 237.8 km
Le Touquet 246.0 km
Le Havre/Octeville 249.0 km
Thorncliffe 249.2 km
Dieppe 249.8 km
Cosford 250.2 km
Sainte-Adresse 252.4 km
Cosford 252.7 km
Cosford 252.7 km
Bridlington 261.7 km
Emley Moor transmitting station 262.7 km
Deauville-Saint-Gatien 268.7 km
Deauville-Saint-Gatien AP 269.0 km
Cherbourg - Maupertus Airport 272.2 km
Linton-On-Ouse 280.2 km
Bristol / Lulsgate 281.6 km
Yeovil 281.7 km
Isle of Portland 284.0 km
Leeds Bradford Airport 284.5 km
Caen 286.9 km
Credenhill 290.0 km
Abbeville 290.6 km
Manchester 290.9 km
Bingley 293.9 km
Dunkirk 294.4 km
Fylingdales 295.6 km
Cap de la Hague 296.2 km
Shawbury 296.7 km
Rostherne 300.3 km
Shobdon 302.0 km
Topcliffe 302.0 km
Rouen/Boos 306.1 km
Alderney Channel Is 316.2 km
Leeming 319.4 km
Loftus Samos 321.3 km