South Australian Monthly Climate Summary: November 2006
Dry November in South Australia
Friday 1 December, 2006
Rainfall in South Australia during November was significantly below
average. November daytime temperatures were above normal and over-night
temperatures near normal.
Rainfall was mostly near average over much of the Pastoral districts. There were, however, some areas of below to very much below average rainfall in the North West district and in the North East district with an isolated pocket of below to very much below average rainfall in the Far North, north of Moomba.
Rainfall totals in the range 10 to 20 mm were reported from several centres in the North West and a few centres in remaining pastoral districts. Totals varied widely over the remainder, from 1 mm at Oodnadatta to 18 mm at Mulgathing Station.
Rainfall totals over the Agricultural Districts were average over northern agricultural districts. Elsewhere rainfall was below average with below to very much below average totals reported over most of the Southeast districts and Kangaroo Island, southern parts of the Mount Lofty Ranges, Yorke and Eyre Peninsulas.
Rainfall totals were below 50 mm throughout the Agricultural districts.
Rainfall totals between 30 mm and 50 mm were generally confined to the County Light, Lower North and on the higher parts of the Mount Lofty Ranges.
Rainfall totals between 20 mm and 30 mm were generally confined to the Upper Southeast District.
Rainfall totals mostly below 15 mm were mainly confined to the Lower Southeast, the Riverland, southern Mount Lofty Ranges, Yorke Peninsula, Kangaroo Island and the Western Agricultural Districts.
Several stations in the Lower South East and on Kangaroo Island districts reported monthly totals less than 8 mm.
The highest rainfall total in South Australia during November was 42 mm reported at Freeling in the County Light region of the Central district.
Mean maximum temperatures over the pastoral districts of the state were generally 2 to 4°C above average. Mean maximum temperatures ranged from 30.5°C at Yunta in the North East district to 37°C at Oodnadatta in the Far North district. The highest recorded maximum temperature for November was 47.3°C at Oodnadatta on the 29th.
Mean maximum temperatures over the agricultural districts of the state were generally 2 to 3°C above average. Mean maximum temperatures ranged from 19.3°C at Robe in the Lower South East district to 30.8°C at Kyancutta in the Western Agricultural.
Mean minimum temperatures over the Pastoral Districts were typically 1 to 3°C above average.
Mean minimum temperatures ranged from 11.5°C at Gluepot in the North East District to 20.9°C at Oodnadatta in the Far North District. The lowest recorded minimum temperature for November was 3°C recorded at Gluepot on the 16th .
Mean minimum temperatures were also above average and were up to 2°C above average over inland Eyre Peninsula. Mean minimum temperatures ranged from 8.4°C at Naracoorte Airport in the Lower Southeast district, to 15.7°C at Port Augusta Airport. The lowest recorded minimum temperature for November was –0.5°C recorded at Keith on the 9th.
Significant Weather October 2006
On the 1st a line of thunderstorms over the Northwest Pastoral district produced a gust to 91 km/h at Coober Pedy and hail the size of a 5 cent coin (~2cm) was reported from Tarcoola.
Northwesterly winds reached mean speeds of 67 km/h at Port Lincoln on the 11th ahead of an approaching trough.
A deep low pressure system passed south of South Australia on the 15th and resulted in a gust to 100km/h at Cape Willoughby, 93 km/h at Cape Jaffa, while Hindmarsh Island reported mean winds of 63 km/h. It should be noted that these stations are well exposed to maritime conditions and may not be truly reflective of conditions further from the coast.
Significant Fire Weather Days
Extreme fire danger was observed in 7 districts on the 19th in response to a hot to very hot and fresh northeasterly airstream over South Australia.
On the 20th, extreme fire danger was observed in 11 districts in a hot to very hot and fresh north to northwesterly airstream.
The passage of a front over South Australia on the 21st, helped to produce extreme fire danger in 12 districts with fresh to strong and very hot north to northwesterly winds ahead a milder but strong west to southwest wind change.
Hot to very hot and fresh north to northwest winds ahead of a trough on the 30th and resulted in extreme fire danger in 7 districts.
Lightning started many fires.
Adelaide's rainfall for November 2006 is 16.6 mm, recorded on 7 days. This is 15.9 mm below the average of 32.5 mm on 8 days. This was the driest November since 2003 when 11.4 mm was recorded. Last November 79.6 mm was recorded on 7 days. The driest November on record were in 1982 and 1996 when the monthly totals of only 1.2 mm were recorded.
The mean maximum temperature for November 2006 is 27.1°C, which is 2.3°C above the normal of 24.8°C and is the warmest since November 2000 when 27.6°C was the average. The mean November maximum last year was 25.2°C.
The mean minimum temperature for November 2006 is 14.1°C, which is 0.3°C above the normal of 13.8°C. Last November, the mean minimum was 13.9°C.
South Australian Weather Summary issued 1 December 2006: For further information please contact Bruce Brooks on (08) 8366 2698.