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United Kingdom

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 - Chesterfield Distance
Sheffield 15.2 km
Nottingham/Watnall 28.3 km
Doncaster Airport 38.0 km
Thorncliffe 39.0 km
Emley Moor transmitting station 44.1 km
East Midlands Airport 44.9 km
Sutton Bonington 47.7 km
Scampton 58.3 km
Manchester 59.2 km
Waddington 60.6 km
Rochdale 63.3 km
Keele 63.4 km
Barkston 64.2 km
Rostherne 64.7 km
Cranwell 65.9 km
Bingley 69.8 km
Leeds Bradford Intl. Airport 72.2 km
Humberside 80.9 km
Coningsby 85.3 km
Coleshill 85.4 km
Cosford 88.6 km
Linton-On-Ouse 89.7 km
Birmingham Airport 89.7 km
Winterbourne Botanic Garden 93.5 km
Wittering 95.9 km
Leconfield 96.0 km
Liverpool AP 96.2 km
Stonyhurst 96.5 km
Coventry Airport 96.5 km
Shawbury 96.8 km
Church Lawford 98.5 km
RAF Dishforth 100.2 km
Donna Nook 102.1 km
Hawarden 104.9 km
Topcliffe 107.6 km
Kirby Grindalythe 109.5 km
Warton Aerodrome Airport 111.2 km
RAF Holbeach 111.7 km
Crosby 113.8 km
Moulton Park 113.8 km
Wainfleet 113.8 km
Woodvale 114.8 km
Leeming 119.0 km
Blackpool Airport 122.6 km
Monks Wood 123.1 km
Bridlington 127.0 km
Pershore 127.6 km
Bedford 129.5 km
Fylingdales 135.5 km
Cranfield Airport 140.7 km
Durham Tees Valley Airport 141.0 km
Woburn 146.2 km
Shobdon 146.8 km
Loftus Samos 152.8 km
RAF Little Rissington 155.0 km
London Oxford Airport 155.9 km
Gloucestershire Airport 158.2 km
Warcop Range 162.3 km
Shap 163.8 km
RAF Brize Norton 165.4 km
Luton Airport 167.9 km
Durham 171.0 km
Great Dun Fell 175.1 km
Rothamsted Park 175.2 km
Fairford Airport 176.1 km
High Wycombe 177.5 km
Benson 181.3 km