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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.


Estações Meteorológicas Próximas - Nantes Distância
Aeroporto Nantes Atlantique 12.7 km
La Roche-sur-Yon 59.4 km
Saint-Nazaire 72.8 km
Rennes- Saint-Jacques Airport 97.9 km
Angers 104.6 km
Saint-Sauveur 107.6 km
La Rochelle Aeroporto 121.1 km
Laval Aeroporto 125.1 km
Phare de Chassiron 130.7 km
Angers 139.4 km
Niort 159.6 km
Dinard/Pleurtuit 163.9 km
Le Talut 189.6 km
Le Mans/Arnage 207.1 km
Saint-Brieuc Armor 208.5 km
Lorient South Brittany Airport 213.1 km
Poitiers/Biard 214.2 km
Cognac - Châteaubernard Air Base 218.2 km
Alencon/Valframbert 225.2 km
Groix 226.0 km
Jersey Aeroporto 235.2 km
Caen 249.0 km
Tours/St Symphorien 251.1 km
Angoulême/Brie-Champniers 254.7 km
Cherbourg - Maupertus Airport 270.8 km
Guernsey Airport 274.5 km
Lannion Aeroporto 276.0 km
Bordeaux/Merignac 281.0 km
Ploumanac'h 281.9 km
Cabo de la Hague 282.0 km
Alderney Channel Is 288.4 km
Cap Ferret 289.0 km
Morlaix/Ploujean 298.7 km
Cazaux 301.7 km
Deauville-Saint-Gatien AP 303.8 km
Deauville-Saint-Gatien 303.9 km
Quimper 306.9 km
Aérodrome de Blois 308.1 km
Sainte-Adresse 309.3 km
Biscarrosse 311.4 km
Le Havre/Octeville 313.4 km
Penmarch 323.8 km
Landivisiau 327.7 km
Limoges/Bellegarde 335.8 km
Châteaudun 336.4 km
Lanv�oc/Poulmic 346.8 km
Bergerac/Roumanier 350.1 km
Guipavas 350.7 km
Brignogan-Plages 353.4 km
Romorantin-Lanthenay 356.9 km
Chartres 363.5 km
Evreux/Fauville 364.3 km
Châteauroux 364.7 km
Pointe du Raz 369.4 km
Orleães 374.8 km
St. Catherine's Point 375.4 km
Isle of Portland 381.5 km
Mont-de-Marsan 384.6 km
Rouen/Boos 385.4 km
Dax 395.7 km
Bournemouth 398.4 km
Guéret Aeroporto 403.0 km
Brive-la-Gaillarde 404.8 km
Thorney Island 405.9 km
Southampton Aeroporto 410.1 km
Agen/La Garenne 412.4 km
Brive- Souillac Airport 412.8 km
Biarritz/Anglet 417.3 km
Ouessant 417.8 km
Dieppe 419.9 km
Gourdon 425.2 km
Brighton City Airport 425.3 km
Ciboure 425.7 km
Trappes 429.5 km
San Sebastian / Fuenterrabia 430.1 km
Burges 432.6 km
Middle Wallop 437.7 km
Toussus-le-Noble 438.0 km
Yeovil 438.8 km
San Sebastian / Igueldo 439.0 km
MoD Boscombe Down 440.3 km
Pau Pyrénées Airport 444.2 km
Larkhill 444.4 km
Exeter Aeroporto 444.4 km
Cormeilles 446.5 km
Villacoublay/Velizy 448.3 km
Dunkeswell Airport 448.4 km
RAF Odiham 452.2 km
Plymouth MtBatten 453.6 km
Elgoibar 456.9 km
Herstmonceux 457.0 km
Aérodrome d'Auch 458.5 km
Punta Galea Golf 459.0 km
Charlwood 460.0 km
Farnborough 460.2 km
Aeroporto de Londres Gatwick 462.3 km
Bilbao/Sondica 462.5 km
Avord 464.2 km
Parque Montsouris 464.8 km
Aeroporto de Paris-Orly 465.1 km