STORMS ON THE COAST OF NEW SOUTH WALES. 79 
of miles east a west of us. Yow, if from an extra heating at 
the equator, more than the usual oe of wind is sent south, 
shan is to rasa ) it at the meeting? Generally it finds vent 
a strong west wind. Sometimes it drives back the polar 
haste till the seh of Australia is in the tropical current and 
north-west winds are reported from the whole of south-east Aus- 
wear at Sydney by far the greater part of our time is spent in 
is dry (more or less) cloudless wind. But when the. tropical 
wand loses titer the polar wind takes its place, and we 
adu 
have south-west winds veering gradually to sou uth- ate as ‘dey 
gain power, and I have known the south-east win lo er 
8 for several weeks. Now one circumstance which assists 
the incoming polar winds is the aie of the country. A moun- 
tain chain stretching n orth and south, and rising to some 3,000 
feet, obliges the ng asimertoe “i to rise to that extent, ae 80 
leave along our coast-line a way prepared for the incoming 
tists wind, which comes rushing along our coast under the 
north-west wind and makes the plane of meeting of the two 
winds inclined to the surface, and in this meeting ground we have 
the most favourable conditions for the establishment of small 
¢c create vais some hill or other local cause frequently starts 
m into exi e 
Tumi ng now to consider the ordinary winds, 
‘Thave elsewhere (“Climate of New South Wales’ oo = 
indicated the normal course of our winds, but with your per 
sion I should like here to state again the general laws, aaa 
it is in the disturbance of these that we find our storms. 
In summer our fine weather winds consist of the north-easterly 
by day (an indraft to the heated interior) and the light westerly 
off land winds at night, while over our —: is steadily blowing 
the north-west (that i is, from N.W.) return trade wind, as ma 
by any upper clouds. The <aen of the local win 
in bak Leeathoss is is someti imes for weeks. it will 
be admitted that an upper current such as I have indicated, and 
nasal feng a from the loss of air shin 8 
partly from the greater amount of warm air air which is pete 
‘Should the causes continue, the warm wind comes down to the 
