Welcome rain arrive at last

By Peter Nelson on October 09, 2017
  • Welcome rain arrive at last

    Most places in our regions certainly benefitted by much needed rainfalls which began on Sunday morning.

Most places in our regions certainly benefitted by much needed rainfalls which began on Sunday morning, 8th October. Places like Bourke, Coonamble, Trangie, Dubbo and Parkes all had received around 20 mms by Sunday evening making it the heaviest daily fall since last March.

Heavy rain and thunderstorms occurred during the weekend at Mt. Isa. A total of 39 mms rainfall was recorded to Sunday morning. This was the heaviest daily fall for October since 20th October 1955 when 61.7 mms fell and the third wettest at Mt. Isa since records started in 1926. The other wetter October day was in 1930.

Both 1930 and 1955 were very wet in October and slightly warmer than usual in our regions with a high frequency of thunderstorms. It continued wet and unsettled the last two months of 1930. The current synoptic surface charts show several centres of low pressure sitting over inland parts of the Nation.

Thunderstorms have been reported at the Giles outback station, WA and also in central parts of the NT and outback QLD. More rain fell at Roma and St. George which had heavy falls a week ago. It has been very dry in Alice Springs since last February.

The rainfall at Alice Springs from March to September totaled only 6.4 mms . This was the driest there since 4.1 mms in 1924. Out of the 6.4 mms which fell from March to September this year , 5.2 mms fell on the 30th September.

If the 5.2 mms fell on the 1st October instead then this year's March to September period would have been the driest since 1883 when no rain fell for 228 successive days. The highest temperatures for each month from July to September this year at Broome were very similar to 1995.

A few other places in the NT and outback QLD had their highest temperatures for August and September also since 1995. There was a lot of unsettled wet, stormy conditions from about the 22nd October to well into January 1996 in our regions. Much the same is expected up to next January. 

By Peter Nelson on October 09, 2017

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