Meteogram supplied with kind permission from
Guide to the Meteograms
One very useful way to look at a time series of meteorological data at a particular point is by ploting the data in a "meteogram."
In a meteogram, time progresses from left to right across the figure. One or more quantites may be plotted, either as line graphs, bar graphs, symbols, numbers, shading, etc.
Using a meteogram, one can get a feel of how conditions change and evolve at a stationary point (termed the "Eulerian" perspective).
This is handy because most people are rather stationary with respect to the atmosphere (unless you do a lot of traveling), so a person's natural perspective is Eulerian.
Keep in mind that like all the other model forecast, this data is "as is." They are straight from the computer models at the National Centers for Environmental Research (NCEP) of the National Weather Service.
No interpretation, corrections, or other objective or subjective changes have been made. These are not the "official" forecasts, though in most cases they should resemble them rather closely since the official forecasts for your region are based on these models to various extents.
Weather forecasts on yr.no are based on data provided by Norwegian Meteorological Institute and its international partner institutions such as European Centre for Medium-Range Weather Forecasts (ECMWF) and European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT). This product is experimental and is for evaluation only.