AT THE POINT
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.
Degree confluence and observations site on Qld-NSW border, in catchment of Warrego River.
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.
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.
Crossing into NSW
Point information & photos: Col Grant 2008. Author's email: email@example.com
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.
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.
Cyclone tracks within 200 km of the confluence, 1906 to 2006 (Bureau of Meteorology web site)
The population of the degree square is probably less than 20.
Edited by: Hayley Freemantle