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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 - Longuenesse Distance
Dunkerque 36.9 km
Coxyde 61.3 km
Boulogne-sur-Mer 70.5 km
Le Touquet-Paris-Plage 72.8 km
Abbeville 80.2 km
Ostende Aéroport 87.5 km
Lille-Lesquin (Aéroport) 97.9 km
Albert Aéroport 99.3 km
Méaulte 99.6 km
Beitem 100.7 km
Langdon Bay 107.9 km
Manston 119.9 km
Zeebruges 127.6 km
Beauvais/Tille 141.5 km
Lydd (Aéroport) 146.2 km
Saint-Quentin 148.2 km
Dieppe 154.4 km
Gavere 161.1 km
Creil 168.0 km
Flessingue 171.7 km
Melle 178.3 km
Chièvres 178.7 km
Shoeburyness 181.3 km
Euro Platform 182.2 km
Cormeilles 184.9 km
Westdorpe 189.6 km
Rouen/Boos 190.3 km
Paris-Charles-de-Gaulle (Aéroport) 193.8 km
Londres-Southend (Aéroport) 194.9 km
Paris-Le Bourget (Aéroport) 197.6 km
Wilhelminadorp 205.7 km
Le Goeree 208.0 km
Wattisham Aéroport 210.1 km
Parc Montsouris 213.0 km
Herstmonceux 214.1 km
P11-b Sea 217.7 km
Villacoublay/Velizy 218.8 km
Trappes 220.1 km
Toussus-le-Noble 220.9 km
Evreux/Fauville 222.0 km
Paris-Orly (Aéroport) 224.9 km
Uccle 236.8 km
Andrewsfield Aerodrome 236.9 km
Centre météorologique de Norwich 240.7 km
Melun 240.7 km
Stabroek 246.1 km
Woensdrecht 247.0 km
Charleroi/Gosselies 248.5 km
Hoek van Holland 250.0 km
Biggin Hill 253.9 km
Anvers/Deurne 254.0 km
Bruxelles Aéroport 256.7 km
Londres-Stansted (Aéroport) 256.8 km
Londres-City (Aéroport) 257.6 km
Wavre-Sainte-Catherine 257.9 km
Lakenheath 263.7 km
Chartres 265.1 km
L'armée de l'air royale de Mildenhall 265.9 km
Kenley 266.5 km
Dourbes 272.7 km
Londres-Gatwick (Aéroport) 273.0 km
Reims en Champagne (Aéroport) 273.1 km
Ernage 273.4 km
Le Havre/Octeville 274.1 km
Florennes 274.7 km
Deauville-Saint-Gatien 275.8 km
Weybourne 275.9 km
Deauville-Saint-Gatien AP 275.9 km
St James's Park 276.9 km
Sainte-Adresse 277.5 km
Charlwood 278.0 km
Shoreham (Aéroport) 280.4 km
Cambridge 280.6 km
Rotterdam-La Haye (Aéroport) 281.4 km
Beauvechain 282.0 km
Marham 282.7 km
Charleville-Mézières 287.3 km
Voorschoten 290.8 km
K13-A 297.0 km
Aéroport Châlons-Vatry 305.8 km
Northolt 309.4 km
Orléans 309.9 km
Londres-Heathrow (Aéroport) 310.1 km
Châteaudun 311.4 km
Rothamsted Park 312.2 km
Gilze en Rijen 314.5 km
Londres-Luton (Aéroport) 316.3 km
Réthy 316.3 km
Schaffen 316.8 km
K14-fa-1c Sea 321.9 km
Hoorn-a Sea 323.3 km
Wijk aan Zee 329.2 km
Cabauw 330.3 km
Holbeach Air Weapons Range 333.3 km
Troyes - Barberey (Aéroport) 333.5 km
Amsterdam-Schiphol 334.5 km
Farnborough 339.5 km
Humain 341.0 km
Wainfleet All Saints 341.2 km
Bedford 344.5 km