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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 - Lake Grace Comparison Distance
Lake Grace 1.9 km
Newdegate Res. Station 42.7 km
Ongerup 45.3 km
Narembeen 55.0 km
Hyden 59.4 km
Corrigin 76.4 km
Jacup 83.7 km
Merredin 88.7 km
Katanning 99.4 km
Kellerberrin 112.7 km
Albany 119.5 km
Albany Aéroport 120.4 km
Mount Barker 120.7 km
Wagin Post Office 126.6 km
Bencubbin 137.3 km
Southern Cross Aéroport 141.8 km
Narrogin 143.1 km
Pingelly 154.9 km
Cunderdin Airfield 157.4 km
Brookton 165.8 km
Rocky Gully 176.7 km
Ravensthorpe 178.2 km
Beverley 178.3 km
Ravensthorpe Hopetoun 192.8 km
York 197.3 km
York 197.3 km
Wandering 199.8 km
Goomalling 202.5 km
Northam Composite 212.1 km
Walpole 214.6 km
Paynes Find 217.9 km
Wongan Hills 223.8 km
Northcliffe Shannon Calm 245.8 km
Dalwallinu 245.8 km
Cheadanup 251.7 km
Collie 254.0 km
Bridgetown 261.7 km
Manjimup 262.7 km
Kalamunda Bickley 263.7 km
Serpentine/Karnet 267.5 km
Dwellingup Forestry 267.9 km
Gooseberry Hill 273.5 km
Pemberton 277.7 km
Cité de Gosnells 279.9 km
Pearce 280.5 km
Perth Int./Belmont (Aéroport) 282.7 km
Jandakot (Aéroport) 290.2 km
Mount Lawley Perth Metro 293.8 km
Donnybrook 294.1 km
Gingin Aéroport 299.3 km
Mandurah 303.9 km
Swanbourne 304.3 km
Garden Island 311.0 km
Bunbury 312.0 km
Jarrahwood 313.7 km
Rottnest 332.9 km
Carnamah Post Office 334.2 km
Morawa (Aéroport) 335.8 km
Busselton Aéroport 340.8 km
Salmon Gums Res. Stn 352.6 km
Badgingarra Research Station 353.4 km
Kalgoorlie 357.9 km
Lancelin 364.4 km
Norseman Aéroport 370.6 km
Augusta Cape Leeuwin 374.6 km
Witchcliffe 375.8 km
Esperance Aero 378.0 km
Cap Naturaliste 382.8 km
Esperance 384.4 km
Baie Jurien 405.4 km