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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 - Cirencester Distance
Fairford Airport 20.1 km
MoD Lyneham 22.2 km
Gloucestershire Airport 29.8 km
RAF Little Rissington 35.5 km
RAF Brize Norton 44.2 km
Pershore 50.6 km
Larkhill 58.6 km
MoD Boscombe Down 64.1 km
Filton 71.6 km
London Oxford Airport 73.7 km
Middle Wallop 75.7 km
Birmingham Airport 87.4 km
Bristol / Lulsgate 90.6 km
Coleshill 92.7 km
Benson 97.7 km
Church Lawford 102.0 km
Credenhill 102.1 km
Bournemouth 103.1 km
Yeovil 107.6 km
Southampton Airport 109.1 km
Cosford 109.6 km
Shobdon 118.3 km
RAF Odiham 125.3 km
High Wycombe 129.9 km
Farnborough 141.4 km
Isle of Portland 142.2 km
East Midlands Airport 144.2 km
St. Catherine's Point 144.7 km
Shawbury 145.1 km
Thorney Island 153.0 km
Cranfield Airport 155.8 km
Woburn 156.2 km
Cardiff Airport 156.5 km
Thorncliffe 158.4 km
Nottingham/Watnall 165.5 km
St Athan 166.6 km
Dunkeswell Airport 169.8 km
Heathrow Airport 170.7 km
Northolt 172.8 km
Bedford 174.9 km
Luton Airport 179.0 km
Rothamsted Park 179.8 km
Manchester 186.9 km
Sennybridge 188.1 km
Coal Aston Airfield 188.2 km
Rostherne 189.8 km
Exeter Airport 192.6 km
Liscombe 194.3 km
Wittering 196.1 km
Hawarden 198.5 km
Charlwood 203.7 km
Lake Vyrnwy 203.7 km
St James's Park 206.1 km
Liverpool AP 206.6 km
Gatwick Airport 207.7 km
Barkston 210.1 km
Shoreham Airport 210.8 km
Kenley 213.7 km
Emley Moor transmitting station 214.8 km
Cranwell 219.8 km
Cap de la Hague 220.7 km
Alderney Channel Is 222.2 km
Bala 223.7 km
Doncaster Airport 224.5 km
Mumbles 225.0 km
London City Airport 225.6 km
Biggin Hill 225.7 km
Waddington 229.6 km
Trawscoed 232.3 km
Bingley 234.6 km
Crosby 234.7 km
Cherbourg - Maupertus Airport 234.7 km
Scampton 237.9 km
North Wyke 238.9 km
Woodvale 241.1 km
Rhyl 242.6 km
Leeds Bradford Intl. Airport 243.6 km
Stonyhurst 243.7 km
Cambridge 245.7 km
London Stansted Airport 245.8 km
Warton Aerodrome Airport 248.5 km
RM Chivenor 252.5 km
Coningsby 252.7 km
Gravesend Broadness 254.5 km
Blackpool Airport 259.3 km
Guernsey Airport 261.8 km
Pembrey Burrows 267.2 km
RAF Holbeach 267.9 km
Capel Curig 268.6 km
Herstmonceux 269.1 km
Andrewsfield Aerodrome 269.9 km
Linton-On-Ouse 272.4 km
Humberside 276.3 km
Jersey Airport 277.5 km
Mildenhall Royal Air Force 282.6 km
Plymouth MtBatten 282.6 km
Topcliffe 285.7 km
Wainfleet 292.8 km
Lakenheath 293.1 km
Leeming 293.3 km