WARNING:
The isobars and other lines of equal measure on all these maps are
based only on the plotted observations you can see. Absence of observations
or erroneous observations will result in a wrong analysis. No reliance
should be placed on the maps for any commercial, professional, or
important purpose. Details
Australian data is provided
by the Bureau of Meteorology.
International data used is the publicly available synoptic reports produced
by national meteorological agencies and distributed over the WMO
GTS.