TYPES OF AUSTRALIAN WEATHER. 545 
TYPE XVI.—WIND BLOWING CONTRARY TO ISOBARS, 
In this type the wind blows with considerable force in a direc- 
tion directly opposed to that which the isobars would lead us to 
expect. For instance in No. 34, it will be seen that an extensive 
high pressure rests over the east coast, and the isobars are com- 
paratively close together. The normal circulation with these 
isobars would be fresh north to north-west winds, when, as a 
matter of fact, strong southerly winds were blowing as far as 
Sydney with a velocity of thirty miles per hour. Such conditions 
are rather troublesome in forecasting ; fortunately they do not 
come often, and the fact is not confined to southerly winds. The 
general direction of the coast line is northerly bearing east a little, 
* Tange of mountains from two to four thousand feet high 
= nearly paralled to it, and this local formation has a very 
mpstinnt effect on the circulation of the wind ; as in Chart 34 
it seems to have more effect than the isobars, and probably the 
dees was rapidly intensifying and had not been long enough in 
Sxlatence to fully control the winds. It seems probable, so far as 
this type has been studied, that we should find that when the 
wind blows contrary to isobars, 
: it does so because of some impulse 
siven to it before the new grade 
had time to control the circulation. 
TYPES. 
oF 
AUSTRALIAN WEATHER é 
Ne 
SEPTEMBER I3.1005 
MO a 
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