29°S 146°E Tuen Plains – Queensland by Degrees

AT THE POINT

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n

Looking north

e

Looking east

s

Looking south

w

Looking west

Observations carries out at site 28.2 km due west of degree confluence (property tracks impassable due to rain). Observations carried out in strong wind and rain.

go1

Google point

go2

Google of Warrego River

Degree confluence and observations site on Qld-NSW border, in catchment of Warrego River.

gr

Ground cover

Crossing into Qld.

Welcome to Queensland on a wet and windy September morning 2008.

Mitchell Highway border grate at the Barringun (NSW) crossing. The highway is the major connection between north-western NSW (eg Bourke) and southwestern Qld (eg Cunnamulla). As at many locations along the border, the 29th S parallel is somewhat south of the Qld-NSW border fence.

qld

Crossing into Qld

Crossing into NSW, Welcome to Outback NSW on a wet and windy September morning 2008.

In outback areas rain rapidly render local unsealed roads and especially property tracks impassable. This obviously can make reaching degree confluences in remote areas difficult. After rain across the entire Bourke Shire, the closest approach that could be made to the point, was on the Mitchell Highway near Barringun.

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Crossing into NSW

Point information & photos: Col Grant 2008. Author's email:  cgrant@vnc.qld.edu.au

IN THE DEGREE SQUARE

Climate: The closest weather station is at the Cunnamulla Post Office (044026), which is 107km north-north-west of the confluence, and has an elevation of 189m.

 

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Mean max
(ºC)

36.0

34.8

32.4

27.9

22.9

19.3

18.7

21.3

25.6

29.6

32.7

35.2

28.0

Mean min
(ºC)

22.2

21.7

18.8

14.1

9.8

6.8

5.7

7.1

10.6

14.8

18.0

20.7

14.2

Mean rain
(mm)

46.6

50.6

39.6

27.6

30.4

26.1

22.7

17.4

18.2

25.2

30.2

38.9

373.8

The highest temperature recorded was 46.9°C in January 1973, and the lowest was -2.2°C in June 1971 and July 1968. The greatest rainfall recorded in a year was 924.5 mm in 1956, and the lowest was 123.3 mm in 2002. These and other climate statistics for Cunnamulla can be found at: Australian Bureau of Meteorology, http://www.bom.gov.au/climate/averages/tables/cw_044026_All.shtml

Extremes of Nature: Since 1906 there have been no cyclones to pass within 200 km of the degree confluence - making it the square and point in Queensland to be least affected by this phenomenon. Cyclone information for this area and all of Australia can be found at the Australian Bureau of Meteorology website, http://www.bom.gov.au/cgi-bin/silo/cyclones.cgi

The area can experience extreme heat throughout the year, with Cunnamulla having an average of 161 days annually with maximum temperatures equal to or over 30°C, 78 days of which reach 35°C or over.

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Cyclone tracks within 200 km of the confluence, 1906 to 2006 (Bureau of Meteorology web site)

Today:

The population of the degree square is probably less than 20.

Edited by:  Hayley Freemantle