World

Europe



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.


Nearby Weather Stations - Haarlem Distance
Amsterdam-Schiphol 14.3 km
Wijk aan Zee 18.6 km
Voorschoten 34.7 km
Berkhout 47.6 km
Rotterdam The Hague Airport 50.5 km
Cabauw 51.9 km
De Bilt 63.8 km
De Kooy Airfield 65.3 km
Hook of Holland 75.1 km
Herwijnen 76.0 km
Hoorn-a Sea 85.3 km
Gilze en Rijen 91.8 km
Lelystad Airport 96.0 km
Stavoren 96.4 km
Vlieland 103.6 km
Woensdrecht 106.5 km
Stabroek 118.7 km
Le Goeree 120.5 km
Wilhelminadorp 124.5 km
Antwerpen / Deurne 129.5 km
Eindhoven 130.1 km
Retie 132.2 km
Terschelling Hoorn 137.5 km
Volkel Air Base 138.9 km
Deelen 139.0 km
Marknesse 140.9 km
Sint-Katelijne-Waver 142.4 km
L9-ff-1 Sea 144.0 km
P11-b Sea 148.3 km
Westdorpe 154.1 km
K14-fa-1c Sea 154.3 km
Vlissingen 155.2 km
Schaffen 156.2 km
Leeuwarden 156.2 km
Kleine-Brogel 158.6 km
Euro Platform 159.8 km
Brussels Airport 161.6 km
Uccle 175.6 km
Ell 176.8 km
Heino 177.5 km
Beauvechain 177.9 km
Melle 179.1 km
Diepenbeek 181.3 km
Weeze Airport 184.9 km
K13-A 187.9 km
Awg-1 Sea 190.2 km
Kalkar 190.8 km
Gavere 192.7 km
Arcen 195.0 km
Zeebrugge 197.5 km
Ernage 197.9 km
Maastricht-Beek 201.7 km
Lauwersoog 207.6 km
Liege / Bierset 207.7 km
F16-a Sea 209.2 km
Charleroi / Gosselies 210.4 km
Bocholt 215.5 km
Hoogeveen 216.1 km
Geilenkirchen 217.0 km
Chièvres 217.8 km
Eibergen 223.0 km
Orsbach 229.0 km
Groningen-Eelde 230.3 km
Florennes 234.9 km
Beitem 235.3 km
Ostend Airport 237.6 km
Mönchengladbach Airport 239.3 km
Mönchengladbach Airport 239.3 km
Baerl 244.7 km
Humain 247.1 km
Twente 248.8 km
Spa 249.3 km
Dourbes 249.8 km
J6-a Helipad Oil Platform 252.1 km
Ahaus 254.9 km
Mont Rigi 256.1 km
Düsseldorf Airport 261.5 km
Lille Airport 263.8 km
Koksijde 264.3 km
Borkum Airport 265.3 km
Elsenborn 268.4 km
St. Hubert/Ardennen 269.6 km
Nideggen-Schmidt 269.7 km
Essen 276.7 km
F3-FB1 277.5 km
Nörvenich 278.6 km
Charleville-Mézières 284.8 km
Kall 291.6 km
D15-fa-1 Sea 292.0 km
Nieuw-Beerta 292.0 km
Lingen 294.6 km
Dunkirk 297.2 km
Meppen 297.9 km
Lommersum 298.1 km
Fliegerhorst Meppen 299.0 km
Schneifelforsthaus 299.1 km
Emden Airport 307.5 km
Norderney 315.1 km
Waltrop-Abdinghof 315.4 km
Buzenol 319.8 km