Much of New South Wales' dusty plains will miss out on Friday's rain while the ranges and coast continue to soak it up.
A cloud-band will form in a low pressure trough, drawing on moisture from the Pacific Ocean and the recently-active tropics. However, the moisture won't be high enough and the trough not intense enough to result in much rain on the plains.
The cloud will pass overhead but bring little more than a few teasing spots to the area west from Wanaaring-to-Parkes-to-Corowa.
From the ground this cloud may appear to be able to deliver 10 millimetres but this sort of rain will only fall along the ranges, coast and on the northwest plains, closer to the moisture sources.
The last time the south-west and central-west slopes and plains gained 10mm or more was in mid-September, more than two months ago.
Wanaaring, Tibooburra, Wilcannia, Fowlers Gap and Ivanhoe have a dry rain gauge since early October, almost two months ago, and have not seen a 10-millimetre fall since at least June, more than five months ago.
Pooncarie's seven millimetres since August is only 11 percent of the seasonal average and makes this their driest spring in over 110 years.
Further northeast, Coonabarabran is in a much better position to turn this spring from being the driest in 56 years to the driest in only seven years. So far the town has only received 31 percent of the seasonal average of 176mm, just 54mm in total. With potential for 15-to-30mm tomorrow this should make this spring a bit wetter than 2006 when 69mm was recorded.
Looking further ahead, the signs are more promising for more widespread, heavier rain with help from a stronger cold front linking up with extra moisture flowing in from the tropics. This rain should arrive from mid-next week.
© Weatherzone 2013
17:21 EDT After a good soaking, there is more rain ahead for Western Australia's Pilbara and Gascoyne.