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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 - Châtellerault Distância
Poitiers/Biard 35.4 km
Tours/St Symphorien 74.9 km
Niort 117.0 km
Aérodrome de Blois 123.7 km
Angoulême/Brie-Champniers 124.2 km
Angers 126.6 km
Limoges/Bellegarde 126.7 km
Le Mans/Arnage 131.5 km
Châteauroux 134.7 km
Romorantin-Lanthenay 140.9 km
Angers 148.4 km
Cognac - Châteaubernard Air Base 157.7 km
Châteaudun 169.8 km
Guéret Aeroporto 172.4 km
Alencon/Valframbert 188.1 km
Orleães 190.1 km
Laval Aeroporto 197.4 km
La Rochelle Aeroporto 204.3 km
Burges 206.2 km
Brive-la-Gaillarde 211.6 km
La Roche-sur-Yon 213.7 km
Chartres 214.5 km
Bergerac/Roumanier 220.8 km
Brive- Souillac Airport 222.8 km
Phare de Chassiron 232.2 km
Avord 237.3 km
Aeroporto Nantes Atlantique 241.6 km
Gourdon 247.7 km
Bordeaux/Merignac 257.4 km
Evreux/Fauville 258.2 km
Trappes 274.2 km
Toussus-le-Noble 279.0 km
Villacoublay/Velizy 286.9 km
Caen 287.0 km
Aéroport de Nevers-Fourchambault 288.0 km
Deauville-Saint-Gatien AP 288.4 km
Deauville-Saint-Gatien 288.6 km
Rennes- Saint-Jacques Airport 289.2 km
Agen/La Garenne 292.6 km
Aeroporto de Paris-Orly 296.5 km
Rouen/Boos 296.5 km
Aurillac 299.1 km
Parque Montsouris 301.6 km
Cormeilles 304.1 km
Sainte-Adresse 305.0 km
Saint-Nazaire 305.6 km
Le Havre/Octeville 308.4 km
Cap Ferret 312.4 km
Cazaux 313.2 km
Melun 313.3 km
Clermont/Aulnat 314.2 km
Saint-Sauveur 319.3 km
Aeroporto de Paris-Le Bourget 321.5 km
Montauban 322.1 km
Vichy/Charmeil 326.6 km
Biscarrosse 329.8 km
Aeroporto de Paris-Charles de Gaulle 332.3 km
Mont-de-Marsan 341.8 km
Rodez- Aveyron Airport 343.2 km
Beauvais/Tille 345.2 km
Aérodrome d'Auch 347.0 km
Creil 350.8 km
Dinard/Pleurtuit 351.0 km
Auxerre 353.8 km
Dieppe 354.4 km
Toulouse/Blagnac 364.5 km
Aérodrome d'Albi 366.2 km
Muret - Lherm Aerodrome 381.4 km
Cherbourg - Maupertus Airport 387.8 km
Dax 389.5 km
Saint-Yan 390.1 km
Pau Pyrénées Airport 395.2 km
Abbeville 398.2 km
Jersey Aeroporto 406.1 km
Millau 406.9 km
Tarbes/Ossun 407.0 km
Le Puy 407.4 km
Castres-Mazamet Airport 410.5 km
Mende 411.5 km
Le Talut 421.2 km
Troyes - Barberey Airport 423.1 km
Saint-Brieuc Armor 423.2 km
Cabo de la Hague 425.2 km
Saint-Girons 426.8 km
Albert Aeroporto 427.3 km
Méaulte 427.7 km
Le Touquet-Paris-Plage 430.9 km
Biarritz/Anglet 436.6 km
St Etienne/Boutheon 441.6 km
Alderney Channel Is 444.9 km
Carcassona 445.0 km
Lorient South Brittany Airport 445.5 km
Saint-Quentin 448.1 km
Monte Aigoual 451.6 km
Ciboure 452.5 km
Bolonha do Mar 453.6 km
Guernsey Airport 455.6 km
Herstmonceux 456.0 km
Arties 457.9 km
Brighton City Airport 458.1 km