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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 - Cheltenham Distance
Gloucestershire Airport 8.7 km
Pershore 28.4 km
Fairford Airport 40.7 km
RAF Little Rissington 43.7 km
RAF Lyneham 45.3 km
RAF Brize Norton 58.4 km
Birmingham Airport 72.5 km
Coleshill 78.7 km
Credenhill 82.3 km
Larkhill 84.0 km
Cosford 84.6 km
Oxford Airport 85.3 km
Cosford 86.0 km
Cosford 86.0 km
MoD Boscombe Down 89.6 km
Bristol / Lulsgate 91.2 km
Shobdon 97.2 km
Church Lawford 98.0 km
Middle Wallop 101.3 km
Benson 114.0 km
Yeovil 117.3 km
Shawbury 119.3 km
Bournemouth 127.3 km
East Midlands Airport 133.4 km
Southampton Airport 134.8 km
Thorncliffe 137.1 km
High Wycombe 144.9 km
RAF Odiham 146.5 km
Cardiff Airport 151.0 km
Nottingham/Watnall 154.0 km
Isle of Portland 159.2 km
St Athan 160.2 km
Farnborough 161.8 km
Manchester 162.8 km
Cranfield Airport 164.4 km
Woburn 165.6 km
Rostherne 165.8 km
St. Catherine's Point 170.5 km
Sennybridge 171.7 km
Coal Aston Airfield 172.3 km
Hawarden 172.9 km
Dunkeswell Airport 173.1 km
Thorney Island 176.9 km
Lake Vyrnwy 180.7 km
Liverpool AP 180.8 km
Bedford 181.6 km
Heathrow Airport 187.7 km
Northolt 188.7 km
Luton Airport 190.9 km
Liscombe 191.7 km
Rothamsted Park 192.3 km
Exeter Airport 195.9 km
Emley Moor transmitting station 196.0 km
Wittering 197.2 km
Bala 201.0 km
Barkston 206.4 km
Crosby 208.9 km
Doncaster Airport 212.4 km
Trawscoed 213.4 km
Bingley 214.0 km
Mumbles 214.7 km
Cranwell 216.3 km
Rhyl 219.1 km
Stonyhurst 219.2 km
St James's Park 221.7 km
Charlwood 222.8 km
Warton Aerodrome Airport 223.7 km
Leeds Bradford Airport 224.1 km
Waddington 224.2 km
Gatwick Airport 227.4 km
Scampton 231.1 km
Kenley 231.5 km
Brighton City Airport 232.9 km
Blackpool Airport 234.1 km
North Wyke 238.3 km
London City Airport 241.6 km
Alderney Channel Is 243.2 km
Cap de la Hague 243.5 km
Biggin Hill 243.9 km
Capel Curig 245.4 km
RM Chivenor 247.3 km
Coningsby 250.7 km
Cambridge 254.5 km
Pembrey Burrows 255.0 km
Linton-On-Ouse 256.1 km
London Stansted Airport 257.9 km
Cherbourg - Maupertus Airport 259.5 km
Topcliffe 267.5 km
Humberside 268.9 km
Holbeach Air Weapons Range 270.0 km
Leeming 274.0 km
Aberporth 277.7 km
Walney 278.6 km
Guernsey Airport 280.3 km
Andrewsfield Aerodrome 282.1 km
Plymouth MtBatten 284.5 km
Leconfield 285.8 km
Herstmonceux 289.8 km
Mildenhall Royal Air Force 290.6 km
Wainfleet All Saints 293.5 km