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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.


Nearby Weather Stations - Heppenheim Distance
Mannheim 16.3 km
Lampertheim/Coleman 20.0 km
Mannheim/Neuostheim 22.0 km
Beerfelden 38.0 km
Michelstadt 42.1 km
Waghäusel 43.2 km
Frankfurt Airport 44.4 km
Frankfurt Airport 45.0 km
Waibstadt 48.1 km
Schaafheim 48.8 km
Bad Dürkheim 51.4 km
Michelstadt-Vielbrunn 52.7 km
Wetterpark Offenbach 53.0 km
Wiesbaden 57.3 km
Alzey 58.2 km
Weinbiet 63.7 km
Kleiner Feldberg 68.0 km
Röllbach 70.0 km
Waldems 75.7 km
Mühlacker 77.5 km
Rheinstetten 80.2 km
Nauheim. Bad 81.0 km
Ruppertsecken 83.9 km
Geisenheim 84.9 km
Sachsenheim 88.6 km
Bad Bergzabern 90.5 km
Breitenborn 93.5 km
Neuhütten 97.2 km
Runkel - Ennerich 99.8 km
Renningen Ihinger Hof 103.3 km
Nastätten 105.6 km
Giessen 106.6 km
Neubulach 108.3 km
Schotten 108.7 km
Schnarrenberg 108.7 km
Öhringen 109.0 km
L�hnberg-Obershausen 111.1 km
Karlsruhe/Baden-Baden Airport 112.4 km
Hoherodskopf 116.6 km
Ramstein Air Base 117.0 km
Lohr 120.5 km
Wahlbach 121.9 km
Stuttgart Airport 123.0 km
Ingelfingen - Stachenhausen 123.3 km
Pirmasens 126.0 km
Memprechtshofen 127.1 km
Großerlach /Mannenweiler 127.3 km
Montabaur 127.8 km
Herolz 128.2 km
Dillenburg 128.3 km
Ulrichstein 130.4 km
Marburg 131.1 km
Freudenstadt 132.3 km
Siegerland Airport 133.3 km
Bad Marienberg 135.9 km
Notzingen 140.3 km
Kaisersbach-Cronhütte 141.3 km
Koblenz Falkenstein-Kaserne 142.8 km
Hechingen 143.4 km
Idar-Oberstein 145.7 km
Eifa 146.8 km
Müdesheim 147.8 km
Würzburg 148.2 km
Niederstetten 150.8 km
Stünzel 151.1 km
Wolfach 152.8 km
Fulda-Horas 154.3 km
Moischeid 154.8 km
Burgwald-Bottendorf 154.9 km
Frankfurt- Hahn Airport 156.2 km
Kirchberg an der Jagst 157.9 km
Neunkirchen-Wellesweiler 159.5 km
Rottweil 160.0 km
Andernach 160.7 km
Hauptschwenda 162.4 km
Strasbourg/Entzheim 163.2 km
Hilgenroth 163.9 km
Meßstetten 164.0 km
Hümmerich 164.8 km
Münsingen Apfelstetten 166.0 km
Lahr 166.1 km
Schwäbisch Gmünd 167.9 km
Elzach 167.9 km
Klippeneck 168.7 km
Kahler Asten 171.0 km
Sandberg 172.0 km
Kitzingen 172.6 km
Geislingen/Stötten 173.5 km
Bad Kissingen Airport 173.5 km
Wasserkuppe 173.9 km
Rothenburg ob der Tauber 174.0 km
Gollhofen 174.2 km
Villingen-Schwenningen 175.3 km
Saarbrücken/Ensheim 176.1 km
Merklingen 176.3 km
Deuselbach 176.4 km
Lennestadt-Theten 178.0 km
Tholey 178.4 km
Fritzlar 178.5 km
Bad Hersfeld 181.8 km