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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.


Stations météo à proximité - Lagny-sur-Marne Distance
Paris-Charles-de-Gaulle (Aéroport) 26.4 km
Melun 28.0 km
Paris-Le Bourget (Aéroport) 32.7 km
Paris-Orly (Aéroport) 40.7 km
Parc Montsouris 42.5 km
Creil 48.1 km
Villacoublay/Velizy 58.6 km
Toussus-le-Noble 69.2 km
Trappes 78.7 km
Cormeilles 79.8 km
Beauvais/Tille 94.4 km
Saint-Quentin 118.5 km
Albert Aéroport 122.9 km
Méaulte 122.9 km
Chartres 142.6 km
Orléans 144.5 km
Auxerre 149.0 km
Troyes - Barberey (Aéroport) 156.9 km
Aéroport Châlons-Vatry 161.5 km
Reims en Champagne (Aéroport) 164.7 km
Evreux/Fauville 167.8 km
Abbeville 171.8 km
Châteaudun 173.1 km
Rouen/Boos 180.1 km
Lille-Lesquin (Aéroport) 194.1 km
Avord 202.1 km
Bourges 203.9 km
Romorantin-Lanthenay 206.7 km
Nevers-Fourchambault (Aéroport) 212.3 km
Aérodrome de Blois 213.3 km
Dieppe 215.6 km
Le Touquet-Paris-Plage 220.6 km
Chièvres 226.9 km
Beitem 230.9 km
Charleville-Mézières 236.4 km
Boulogne-sur-Mer 242.0 km
Saint Dizier/Robinson 244.4 km
Dunkerque 246.5 km
Châteauroux 247.3 km
Coxyde 247.4 km
Dourbes 250.4 km
Gavere 252.9 km
Ostende Aéroport 260.0 km
Charleroi/Gosselies 262.4 km
Florennes 263.4 km
Melle 264.9 km
Tours/St Symphorien 272.2 km
Zeebruges 281.0 km
Uccle 281.9 km
Ernage 289.1 km
Deauville-Saint-Gatien AP 289.2 km
Deauville-Saint-Gatien 289.3 km
Westdorpe 290.9 km
Langdon Bay 294.5 km
Alençon/Valframbert 295.2 km
Le Mans/Arnage 298.8 km
Le Havre/Octeville 302.4 km
Bruxelles Aéroport 303.2 km
Sainte-Adresse 303.3 km
Flessingue 303.5 km
Lydd (Aéroport) 305.3 km
Saint-Yan 308.3 km
Beauvechain 309.6 km
Vichy/Charmeil 309.6 km
Guéret Aéroport 311.2 km
Langres Aéroport 313.1 km
Manston 315.4 km
Wavre-Sainte-Catherine 317.3 km
Dijon-Bourgogne (Aéroport) 318.3 km
Humain 318.5 km
Anvers/Deurne 324.3 km
Wilhelminadorp 324.3 km
St Hubert/Ardennen 325.6 km
Stabroek 328.9 km
Buzenol 329.8 km
Woensdrecht 338.8 km
Clermont/Aulnat 346.4 km
Herstmonceux 349.5 km
Schaffen 352.9 km
Euro Platform 353.6 km
Caen 354.3 km
Le Goeree 356.9 km
Tavaux 363.0 km
Liège/Bierset 363.0 km
Dole Tavaux 363.3 km
Nancy/Ochey 363.7 km
Shoeburyness 365.6 km
Réthy 366.9 km
Aéroport d'Angers-Loire 367.2 km
Mâcon 367.5 km
Poitiers/Biard 370.0 km
Limoges/Bellegarde 375.5 km
Londres-Southend (Aéroport) 375.7 km
Hoek van Holland 379.0 km
Diepenbeek 380.0 km
Gilze en Rijen 388.3 km
Nancy/Essey 392.0 km
Rotterdam-La Haye (Aéroport) 393.2 km
P11-b Sea 393.5 km
Metz-Nancy-Lorraine 393.7 km