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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.


Estaciones meteorológicas cercanas - Médréac Distancia
Dinard/Pleurtuit 35.3 km
Rennes Saint-Jacques aeropuerto 41.5 km
Saint-Brieuc Armor 93.9 km
Saint-Nazaire 107.0 km
Jersey Aeropuerto 107.0 km
Nantes Atlantique aeropuerto 133.6 km
Guernsey aeropuerto 143.5 km
Laval Aeropuerto 147.8 km
Lorient South Brittany aeropuerto 155.0 km
Cabo de la Hague 161.8 km
Alderney Channel Is 162.2 km
Lannion Aeropuerto 166.6 km
Cherbourg - Maupertus aeropuerto 166.9 km
Le Talut 169.1 km
Ploumanac'h 169.8 km
Groix 175.4 km
Saint-Sauveur 177.1 km
Angers 182.3 km
La Roche-sur-Yon 189.5 km
Morlaix/Ploujean 200.1 km
Caen 205.3 km
Angers-Loire aeropuerto 208.8 km
Landivisiau 235.8 km
Quimper 238.0 km
Alencon/Valframbert 240.1 km
La Rochelle Aeropuerto 251.2 km
Le Mans/Arnage 253.2 km
Isla de Pórtland 254.2 km
Phare de Chassiron 257.0 km
Brignogan-Plage 258.4 km
Penmarch 263.1 km
Guipavas 264.2 km
Lanvéoc/Poulmic 266.6 km
Punta de St. Catherine 271.0 km
Sainte-Adresse 272.7 km
Deauville-Saint-Gatien aeropuerto 275.4 km
Deauville-Saint-Gatien 275.5 km
Le Havre/Octeville 276.2 km
Bournemouth 281.0 km
Niort 284.3 km
Punta de Raz 299.8 km
Southampton Aeropuerto 301.8 km
Thorney Island 310.1 km
Yeovil 310.9 km
Exeter Aeropuerto 313.4 km
Dunkeswell Aeropuerto 317.4 km
Poitiers/Biard 321.8 km
Tours/St Symphorien 322.4 km
MoD Boscombe Down 324.4 km
Middle Wallop 325.3 km
Plymouth MtBatten 327.2 km
Larkhill 327.5 km
Ouessant 334.8 km
North Wyke 345.9 km
Brighton City aeropuerto 346.8 km
Cognac - Châteaubernard Air Base 347.8 km
RAF Odiham 352.9 km
Brístol aeropuerto 354.5 km
Liscombe 357.5 km
Lyneham Airfield 360.1 km
Farnborough 364.8 km
Aérodrome de Blois 369.0 km
Evreux/Fauville 373.1 km
Cardiff Aeropuerto 376.6 km
Charlwood 379.0 km
Angoulême - Cognac aeropuerto 379.1 km
Rouen/Boos 380.8 km
Fairford Aeropuerto 381.1 km
St Athan 381.6 km
Londres-Gatwick aeropuerto 382.3 km
Cardinham 382.8 km
Châteaudun 382.8 km
Benson 387.9 km
Chivenor Airfield 390.7 km
RAF Brize Norton 392.1 km
Herstmonceux 393.3 km
Chartres 395.8 km
Dieppe 396.7 km
Londres-Heathrow aeropuerto 399.4 km
RAF Little Rissington 401.8 km
Kenley 402.2 km
Gloucestershire Aeropuerto 403.5 km
High Wycombe 404.9 km
Oxford aeropuerto 405.5 km
Northolt 406.1 km
Newquay Cornwall aeropuerto 407.2 km
Culdrose Airfield 410.2 km
Bordeaux/Merignac 411.3 km
Biggin Hill 412.4 km
Cabo Ferret 414.0 km
St. James's Park 418.9 km
Camborne 423.3 km
Mumbles 425.3 km
Orleans 425.3 km
Cazaux 427.8 km
la Ciudad de Londres aeropuerto 429.1 km
Romorantin-Lanthenay 429.2 km
Pershore 432.0 km
Credenhill 432.6 km
Biscarrosse 436.0 km