Monthly weather review, Northern Territory : September 2009
Bureau of Meteorology
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Meteorology -- Northern Territory -- Observations -- Periodicals; Northern Territory -- Climate -- Periodicals
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Overview Days and nights were hotter than normal in September. Rainfall was mixed but in general it was average to below average across most of the Northern Territory. Extremes in September 2009 Hottest day (Highest daily maximum temperature) 41.5 C at Bradshaw AWS on the 23rd Warmest days on average (Highest mean daily maximum temperature) 38.3 C at Bradshaw AWS Coolest days on average (Lowest mean daily maximum temperature) 27.7 C at Kulgera Coldest day (Lowest daily maximum temperature) 18.8 C at Kulgera on the 26th Coldest night (Lowest daily minimum temperature) 3.0 C at Curtin Springs on the 11th Coolest nights on average (Lowest mean daily minimum temperature) 11.8 C at Yulara Aero AWS Warmest nights on average (Highest mean daily minimum temperature) 25.0 C at Warruwi AWS Warmest night (Highest daily minimum temperature) 28.5 C at Kidman Springs on the 22nd Wettest overall (Highest total rainfall) 86.6 mm at Noonamah AWS Wettest day (Highest daily rainfall) 62.2 mm at Elizabeth Valley on the 8th Highest wind gust 117 km/h at Yulara Aero AWS on the 16th Significant weather Fire Weather Several large fires in the Darwin-Daly District threatened properties and caused significant damage to vegetation, crops and pasture during the last two weeks of September. On the 27th, a bushfire burnt 3 sq km around the Berry Springs Wildlife Park and nearby properties. Ground and aerial suppression using three helicopters and a water-bombing aircraft saved assets estimated at $90 m. On the 28th and 29th, fires burnt a total of 30 sq km near Leaning Tree Lagoon, Eva Valley, Mt Keppler and Cameron Downs, destroying crops, pasture and fencing. Severe Thunderstorms On the 16th, severe thunderstorms formed ahead of a trough moving into the Alice Springs District. Wind gusts to 117 km/h were recorded at Yulara (Ayers Rock) Aero AWS in a thunderstorm downburst. A thunderstorm at Curtin Springs uprooted large trees and generated a very thick dust storm with visibility down to several meters. Several other severe thunderstorms were observed on radar, in the northeast of the Alice Springs District on the 17th, and in southern parts of the Alice Springs district on the 18th and 19th. Dust Storms Dust storms were reported at Kulgera on the 21st, ahead of a strong cold front moving in from the west. Raised dust was also reported on the 22nd and the front continued to carry the dust to the east. By the 23rd the dust was reducing visibility across NSW and southern QLD. Monthly Weather Review Northern Territory September 2009 page 1