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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 - Glastonbury Distance
Yeovil 16.6 km
Bristol / Lulsgate 27.8 km
Dunkeswell Airport 67.4 km
Isle of Portland 74.0 km
Cardiff Airport 77.4 km
St Athan 87.2 km
RAF Lyneham 88.8 km
Exeter Airport 90.1 km
Liscombe 100.3 km
Larkhill 100.5 km
Gloucestershire Airport 103.6 km
Bournemouth 104.0 km
MoD Boscombe Down 105.8 km
Credenhill 106.2 km
Fairford Airport 118.3 km
Shobdon 125.9 km
Middle Wallop 126.2 km
Pershore 135.3 km
RAF Little Rissington 138.3 km
North Wyke 139.7 km
RAF Brize Norton 143.0 km
Sennybridge 145.5 km
Southampton Airport 147.0 km
Mumbles 150.8 km
RM Chivenor 161.5 km
Alderney Channel Is 167.1 km
St. Catherine's Point 167.4 km
Oxford Airport 172.4 km
Cosford 173.1 km
Cosford 173.2 km
Cosford 173.2 km
Cap de la Hague 179.2 km
Plymouth MtBatten 180.3 km
Birmingham Airport 181.7 km
Shawbury 185.4 km
Benson 186.3 km
Coleshill 188.0 km
Guernsey Airport 189.4 km
Trawscoed 193.4 km
RAF Odiham 195.7 km
Pembrey Burrows 196.5 km
Lake Vyrnwy 198.9 km
Thorney Island 201.0 km
Church Lawford 204.4 km
Cherbourg - Maupertus Airport 214.4 km
Farnborough 215.9 km
High Wycombe 220.2 km
Jersey Airport 220.3 km
Bala 220.3 km
Hawarden 228.3 km
Cardinham 229.9 km
Aberporth 235.6 km
Thorncliffe 235.8 km
East Midlands Airport 242.9 km
Liverpool AP 245.2 km
Rostherne 250.1 km
Manchester 250.9 km
Rhyl 252.9 km
Heathrow Airport 253.3 km
Woburn 253.6 km
Cranfield Airport 254.4 km
Northolt 256.9 km
Capel Curig 258.1 km
Nottingham/Watnall 263.4 km
Crosby 266.3 km
Newquay Airport 266.8 km
Milford Haven 269.1 km
Ploumanac'h 269.5 km
Brighton City Airport 271.1 km
Rothamsted Park 271.2 km
Luton Airport 272.4 km
Bedford 274.6 km
Charlwood 275.0 km
Lannion Airport 278.3 km
Coal Aston Airfield 279.8 km
Gatwick Airport 280.2 km
St James's Park 288.9 km
Saint-Brieuc Armor 289.6 km
Kenley 291.0 km
Warton Aerodrome Airport 291.1 km
Aberdaron 291.2 km
Dinard/Pleurtuit 292.2 km
Blackpool Airport 296.1 km
Wittering 298.6 km
Emley Moor transmitting station 298.7 km
Raf Mona 301.1 km
Stonyhurst 301.4 km
Biggin Hill 305.0 km
RNAS Culdrose 307.6 km
Morlaix/Ploujean 307.8 km
Camborne 308.6 km
London City Airport 308.8 km
Valley 311.4 km
Bingley 312.0 km
Barkston 313.1 km
Doncaster Airport 321.7 km
Cranwell 323.1 km
Leeds Bradford Airport 325.7 km
Brignogan-Plages 327.3 km
Landivisiau 331.4 km