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Saturday 14 October 2000

Widespread rain brings cheer to NSW farmers 19Oct00, 23Oct00
Strong winds in the southeast, snow in Tasmania
Cold in the Centre
Rainfall for the 24 hours to 9am today BoM

Widespread rain fell across NSW yesterday and today, with some record October falls. The heaviest totals, between 25 and 100mm, mostly accumulated overnight across a large part of the Central and Northern Tablelands and Slopes as several rain and storm areas embedded in a huge cloudmass crossed the state. These lay ahead of a significant surface trough and cold front, supported by a sharp upper trough and tongue of cold air. A surface low developed on the front early this morning in the state's central west, then tracked ENE to cross the North Coast near Grafton late morning with a central pressure of 997hPa. The rain and storms intensified under and ahead of the developing low, producing the rainfall bullseye over the Northwest Slopes shown on the map (right), where at least 3 locations received record October falls. Tamworth, Quirindi and Barraba all broke October daily rainfall records that have stood for over 100 years (see records panel below). The higher 24-hour totals are given below and some of the heavier short-duration falls are given in the panels below and for yesterday. Although there were widespread thunderstorms, most of the rain fell steadily -- a fortunate outcome as this is the first significant rain in the area since early May, and topsoil was dry. The falls also extinguished bushfires that have been burning for the past 5 weeks in rugged country in the Oxley Wild Rivers National Park, east of Armidale.

A Strong southwesterly stream followed behind the front, supported by a strong southwesterly jet stream to the west of Tasmania. Snowfalls developed about the Tasmanian high country during the morning and temperatures plummeted as the colder air arrived, with a temperature of -1.4 recorded at 3pm atop Mt Read, just east of Rosebery on the West Coast, and -1.6 atop Mt Wellington behind Hobart at 3.35pm. Gusty winds picked up across eastern Victoria and NSW, with Mt Boyce in the NSW Blue Mountains recording a gust of 85km/h at 3pm

Clear skies behind the front also produced a record cold October night in northern South Australia. Woomera Aerodrome and Andamooka both broke records (see panel below), while Alice Springs shivered with a minimum of 4, 11 below normal.

Today's highest rainfall totals for the 24 hours to 9am

97.0 Quirindi NSW
88.0 Upper Horton NSW
83.0 Keeva Nundle NSW
80.2 Barraba PO NSW
80.2 Murrurundi NSW

Other heavy falls in NSW:
78.0 Willow Tree
72.0 Tamworth AP
68.8 Weabonga
68.8 Hunter Springs
68.2 Ogunbil
64.6 Gunnedah Pool
60.8 Guyra
60.2 Pallamallawa
59.0 Woolbrook
57.6 Gunnedah SCS
56.4 Coonabarabran
55.2 Inverell Res Centre
55.0 Hill End
55.0 Moonan Flat
54.2 Narrabri West PO
52.0 Uralla
51.4 Tooraweenah
50.6 Granite Heights Bundarra
50.0 Wee Waa

High falls for other periods:

Northern Territory:
Centre Is:
33mm in 6h to noon, 14.6mm falling in 16m to 8.56am
Weipa AP: 32mm in 1h to 11pm
Point Lookout, Stradbroke Is: 30mm in 6h to noon
New South Wales:
Glen Innes AP:
28mm in 6h to 9am
Glen Innes PO: 21mm in 3h to 9am

Today's highest & lowest temps

Wind (mean refers to the average windspeed over 10 minutes; gust is the highest speed recorded):
Mt Boyce NSW:
mean 57km/h gust to 85km/h at 3pm

Records set this day

Highest daily rainfall for October (previous record and years of computerised record shown in brackets):
Barraba PO NSW: 80.2 (74.4, 118)
Quirindi PO NSW: 97.0 (88.6, 114)
Tamworth AP NSW: 72.0 (67.6, 113)

Lowest minimum temperature for October (previous record and years of computerised record shown in brackets):
Woomera AP SA: 4.0 (4.4, 51)
Andamooka SA: 5.2 (6.0, 30)

Maximum Minimum
40.5 Derby AP WA 28.1 Channel Point NT
-1.0 Crackenback NSW
-1.0 Mt Baw Baw Vic
-4.2 Mt Hotham Vic

Greatest variations from normal

Maximum Minimum
35.0 Carnarvon AP WA
20.2 Baralaba Qld
22.0 Jervois NT
24.4 Urandangie Qld
23.6 Boulia PO Qld
4.0 Alice Springs AP NT
1.0 Eyre WA
5.6 Kulgera NT