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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 - Plymouth Distance
Plymouth MtBatten 6.9 km
North Wyke 45.7 km
Cardinham 62.0 km
RM Chivenor 74.1 km
Exeter Airport 86.8 km
Liscombe 93.8 km
Cornwall Airport Newquay 97.8 km
Dunkeswell Airport 109.3 km
Mumbles 128.6 km
RNAS Culdrose 132.2 km
St Athan 133.5 km
Camborne 135.4 km
Cardiff Airport 138.8 km
Pembrey Burrows 147.0 km
Milford Haven 176.3 km
Yeovil 177.4 km
Isle of Portland 185.9 km
Bristol / Lulsgate 189.0 km
Ploumanac'h 190.2 km
Sennybridge 191.5 km
Brignogan-Plages 193.9 km
Aberporth 197.0 km
Lannion Airport 198.8 km
Guernsey Airport 201.1 km
Morlaix/Ploujean 204.5 km
Landivisiau 209.5 km
Trawscoed 214.9 km
Guipavas 220.9 km
Alderney Channel Is 227.1 km
Credenhill 236.2 km
Ushant 238.4 km
Lanvéoc/Poulmic 239.8 km
Shobdon 245.8 km
Scilly St Mary 249.3 km
Jersey Airport 251.6 km
Saint-Brieuc Armor 252.3 km
Cap de la Hague 255.2 km
Bournemouth 257.4 km
MoD Lyneham 265.5 km
Lake Vyrnwy 269.1 km
Quimper 271.2 km
Aberdaron 271.5 km
Larkhill 272.2 km
Gloucestershire Airport 272.6 km
Pointe du Raz 273.3 km
MoD Boscombe Down 276.3 km
Bala 282.9 km
Penmarch 291.8 km
Fairford Airport 294.7 km
Middle Wallop 295.3 km
Capel Curig 298.7 km
Pershore 301.5 km
Dinard/Pleurtuit 305.9 km
Lorient South Brittany Airport 306.5 km
Cherbourg - Maupertus Airport 306.7 km
Southampton Airport 307.2 km
Shawbury 310.2 km
RAF Little Rissington 314.0 km
St. Catherine's Point 314.1 km
Groix 314.9 km
Raf Mona 317.0 km
Valley 317.9 km
Cosford 318.9 km
Cosford 318.9 km
RAF Brize Norton 319.6 km
Cosford 319.9 km
Rhyl 322.9 km
Hawarden 330.6 km
Johnstown Castle 337.3 km
Birmingham Airport 348.5 km
London Oxford Airport 349.1 km
Liverpool AP 353.4 km
Coleshill 355.2 km
Thorney Island 358.3 km
Le Talut 360.9 km
Benson 361.6 km
Crosby 361.9 km
RAF Odiham 364.7 km
Rennes- Saint-Jacques Airport 372.1 km
Church Lawford 377.8 km
Rostherne 379.9 km
Thorncliffe 383.8 km
Waterford Airport 384.4 km
Manchester 384.6 km
Farnborough 385.2 km
Blackpool Airport 391.9 km
Warton Aerodrome Airport 394.5 km
High Wycombe 395.2 km
Saint-Nazaire 407.9 km
Dublin Airport 410.2 km
East Midlands Airport 410.4 km
Dublin Csmt Aero 410.7 km
Oak Park 410.7 km
Isle of Man Airport 411.0 km
Stonyhurst 421.8 km
Walney 422.2 km
Heathrow Airport 424.9 km
Northolt 429.1 km
Shoreham Airport 429.2 km
Nottingham/Watnall 429.6 km