The drought continues into early spring in Australian fields, and the crops need a good rain before the hot, dry summer comes at the end of the calendar year. The ABC Rural story on the rains is intermixed with a interpolated map of rainfall across Australia.
Now, compare this to the weather radar range of Australia, the Strategic Enhanced Radar Project (SERP) has many large areas that are not covered by a radar. There are many farmers and other agriculture interests in those radar holes (unlike the United States where most large radar gaps are in the Rocky Mountains and Alaska, our agriculture areas are better covered, but can always improve).
This opens up a market for the growing UAV market a few posts ago. While the meteorological data will remain ground recording stations, plant growth and stress can be evaluated with UAVs with color and/or color-IR multispectral scanners.
Unlike the United States, all you need in Australia to fly small UAVs is a UAV Controller Certificate. There are also rules against flying in cities, within 5.5km of airports, under 400ft, 30m away from cars, boats, etc… Which is possible for farmers out in the field. This will not be available in the United States before September 2015.