SOUTHERLY BURSTERS. 51 



energy in weather conditions generally than there was on February 

 loth. The isobars enclosing the approaching anticyclone are 

 more numerous and of higher value. The wind circulation is 

 more regular and moderate to fresh in force generally. The 

 tropical low pressure is also a defined and active feature. The 

 A depression it will be observed on the 22nd was ill-formed, and 

 hence notwithstanding the anticyclonic feature favouring a good 

 blow, this burster was little better than that of the 15th February. 



The weather antecedent to this southerly was comparatively 

 speaking cooler in central parts of Australia than on the coast, 

 there was also much thunder cloud, and scattered showers fell 

 in south-west Queensland and northern parts of South Australia 

 on the 21st, these points may in part account for the want of force 

 in this burster. The preceding north-east wind blew for the 

 greater part of three days with a force varying between five 

 and fifteen miles per hour, and at 1 a.m. on the 22nd immediately 

 before the burster it was practically calm. This burster began 

 with a velocity of seventeen miles per hour ; between 4 and 11 a.m. 

 the hourly force pulsated between eleven and fifteen miles, it then 

 again rose and twenty-seven miles per hour was reached at 3a.m., 

 and at 3*15 a.m. thirty-eight miles the greatest velocity ; it then 

 gradually fell away and veered through east to north early on the 

 26th. This may be taken as a modified type of the popular 

 burster (See page 28). 



Cloud notes on burster of 22nd February, 1894 Warm swelter- 

 ing day on 21st, excepting a small patch of cumulus visible at 3 

 p.m., not a cloud was seen up to midday 22nd. At daylight on 

 the 23rd cirro-cumulus to extent of -3 moving from the south, 

 upper strata very light mackerel with just a perceptible motion 

 from west-north-west; clouds gradually extending up to 11 a.m., 

 when it became completely overcast and a light misty rain began 

 to fall at 11-40 a.m. Thunder at 12-50 p.m.; thunderstorm 

 between 1 and 2 p.m., clouds breaking at 3 p.m. to south. An 

 upper strata of cirrus visible to the south-west, but too distant to 

 pote motion ; cleared by evening. 



