30 AUSTRALIAN WEATHER. 



ing continues on its way towards New Zealand. This results in an 

 attenuated state of atmosphere on the northern coast of New 

 South Wales and on the shores of Southern Queensland. 



TROPICAL CYCLONES. 



If it so happens that one of the north-east cyclones is on a visit 

 to this region at the same time it is diverted from its customary 

 course the track of these storms being generally to the eastward 

 of our coast and avails itself of this partial void. Its irruption, 

 acting with the already existing \ depression, seems to result in 

 that peculiar class of storm, of which the Dandenong gale is a 

 notable example. 



Concerning the intensity of this particular storm a few facts 

 concerning another of a similar character may not be considered 

 out of place. A study of its leading characteristics may, in some 

 future time assist the meteorologist in recognising the early signs 

 and portents of another such calamity. 



A RECENT GALE OP THE DANDENONG TYPE. 



The second gale referred to occurred on the 23rd of September, 

 1892 sixteen years after the famous " Dandenong" storm. On 

 this occasion the wind attained a velocity of one hundred and 

 twenty miles an hour. The series of anticyclones in August and 

 those in the early days of September were of considerable energy, 

 and in each case the high pressure to the west, which, from its 

 unusually energetic state, doubtless aggravated the violence of 

 the storm, had completely disappeared on the following days. 

 All that remained were horizontal isobars of a relatively low 

 pressure in the southern ocean. Particulars of the "Dandenong" 

 gale may be found in Mr. Russell's paper on " Storms on the New 

 South Wales Coast," read before the Royal Society of New South 

 Wales on 7th August, 1878. (See following diagram, page 32.) 



BAROMETERS FALL AFTER WIND VEERS TO SOUTH. 



These are two noteworthy instances in which the barometers, 

 after a southerly, have been observed to fall instead of rise, with 



