Wednesday 09 JUN 2004

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2004

Dec

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Oct

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Sept

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August

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July

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June

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May

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April

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March

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February

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January

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Frontal system brings storms, rain to SA, VIC and possible tornado in Melbourne

Radar and lightning tracker images hourly from 6 to 10pm. The 15-level radar from Weatherzone Silver shows the detailed structure of the squall line and heavy showers as they intensified approaching Port Phillip Bay then began weakening around the time the suspected tornado hit suburbs to the east of the Bay.

Frontal system brings storms, rain to SA, VIC and possible tornado in Melbourne

A cold front and its preceding trough pushed damaging winds, thunderstorms and widespread light to moderate rain through southern SA and NSW and much of VIC today. A strong downdraft or possibly a tornado caused extensive minor damage in the Melbourne suburb of Noble Park North, 25km SE of the CBD.

A narrow line of thunderstorms oriented NW to SE developed along the full length of the SA coastline around 9pm yesterday and moved eastwards, moving through Adelaide and entering far SW VIC soon after midnight today. These storms, which developed along the troughline ahead of the cold front, caused blackouts across much of the southern Eyre Peninsula in SA with Edilillie, Coulta and Louth Bay completely losing power. In the Adelaide coastal suburb of Seaton, a house that was struck by lightning was later found by firemen to have 15 metres of timber roof trussing smouldering beneath the corrugated iron. The narrow rainband brought between 5 and 20mm to SE SA and the Eyre Peninsula.

The storms died out before dawn but the rainband maintained intensity as it moved across western VIC, arriving in Melbourne around 7am. Most of the SW of the state reported falls of 5 to 15mm in the 24 hours to 9am today. By mid morning, the movement of the rainband had changed to southeasterly, running along its own axis, with the result that Melbourne and central VIC experienced a long period of light rain lasting well into the afternoon.

A broad area of moderate rain with some scattered thunderstorms developed around the front following the trough as it crossed the SA SE coast around midday and moved into western VIC during the early afternoon. This rain area gave more significant rain totals, with western and northeastern VIC and southern NSW recording 10 to 40mm for the 24 hours to 9am Thursday. A narrow line of heavy showers developed along the cold front embedded in this rain area soon after 5pm as the front approached Melbourne. The showers intensified and a squall line developed as the front moved east over the next few hours, though the rapid movement of the line kept rainfall totals at any point below about 10mm. The squall line crossed Melbourne Airport at 8.30pm giving a top gust of 78km/h and through Viewbank (13km NE of the CBD) and Moorabbin Airport (15km SE) at 8.50 giving gusts of 68 and 59km/h respectively. Soon after, a strong downdraft or weak tornado carved what The Age described as a 2.5km long, 200 to 300m wide track through Noble Park North, North Dandenong and Mulgrave. Witnesses described the strong winds as lasting 20 to 30 seconds. ABC Radio reported 70 houses extensively damaged, while the SES reported 43 damage callouts. Damage was restricted to roof tiles, garden furniture and debris scattered about, though one pergola roof was blown a block and a half by the wind.

National weather extremes for today

Data provided by the Bureau of Meteorology

Records set this day: (none known)

Quality control note: Data is final. It includes late-received rainfall data and has been subject to BoM quality control checks.
Data is as received at 22:17EST, 27/10/2004.

Weather observations for today
Noteworthy  Weather         Capital  Cities         Regional  Cities       Alpine  Stations
Bureau of Meteorology Rainfall Bulletins and Weather Notes

Hottest
Highest maximum temperature>Greatest variation above normal maximum Highest minimum temperatureGreatest variation above normal minimum

34.7 WYNDHAM AERO N Kimberley WA
34.3 KIMBERLEY RES.STATION E Kimberley WA
34.2 BIDYADANGA W Kimberley WA
34.0 WYNDHAM N Kimberley WA
34.0 KALUMBURU MISSION N Kimberley WA
34.0 MANDORA E Pilbara WA

+8.6   28.4 ALICE SPRINGS AIRPORT N Plateau NT
+8.6   30.2 BIRDSVILLE POLICE STATION Channel Country QLD
+8.3   28.0 THARGOMINDAH POST OFFICE Far SW QLD
+8.1   19.5 BOMBALA (THERRY STREET) Goulburn/Monaro NSW
+8.1   23.7 HILLSTON AIRPORT Riverina W NSW

29.0 NORTHERN ENDEAVOUR Islands ISL
25.7 TROUGHTON ISLAND N Kimberley WA
25.3 COCONUT ISLAND N Peninsula QLD
25.1 COCOS ISLAND AIRPORT Islands ISL
25.0 MCCLUER ISLAND N Rivers NT

+9.0   14.8 MARLA POLICE STATION NW Pastoral SA
+8.8   15.3 OODNADATTA AIRPORT NE Pastoral SA
+8.3   14.6 SCORESBY RESEARCH INSTITUTE E Central VIC
+8.0   13.0 CURTIN SPRINGS N Plateau NT
+8.0   12.0 GRIFFITH AIRPORT AWS Riverina W NSW
+8.0   10.6 RUTHERGLEN RESEARCH Lower NE VIC

Coldest
Lowest maximum temperatureGreatest variation below normal maximum Lowest minimum temperatureGreatest variation below normal minimum

4.2 THREDBO AWS Snowy Mtns NSW
4.3 MT HOTHAM Upper NE VIC
5.3 FALLS CREEK Upper NE VIC
5.7 CHARLOTTE PASS (KOSCIUSKO CHALET) Snowy Mtns NSW
6.0 PERISHER VALLEY SKI CENTRE Snowy Mtns NSW
6.0 MOUNT BULLER Upper NE VIC

-1.9   17.2 PAYNES FIND E Gascoyne WA
-1.7   17.0 BADGINGARRA RESEARCH STN Lower West WA
-1.3   16.1 BENCUBBIN Cent Wheatbelt WA
-1.3   18.0 NORFOLK ISLAND AERO Islands ISL
-1.2   21.3 KALBARRI Central West WA
-1.2   16.0 MERREDIN Cent Wheatbelt WA

-3.2 GOULBURN AIRPORT AWS Goulburn/Monaro NSW
-2.3 WOOLBROOK (DANGLEMAH ROAD) NW Slopes S NSW
-2.3 COOMA VISITORS CENTRE Goulburn/Monaro NSW
-2.0 ARMIDALE (UNI NEW ENGLAND) N Tablelands W NSW
-1.6 INGLEWOOD FOREST Darling Downs E QLD

-4.1   1.2 CESSNOCK AIRPORT AWS Hunter Valley NSW
-3.7   3.6 TAREE (RADIO STATION 2RE) MidNorth Coast S NSW
-2.9   5.0 WILLIAMTOWN RAAF Hunter Valley NSW
-2.9   11.8 NORFOLK ISLAND AERO Islands ISL
-2.8   3.1 CESSNOCK (NULKABA) Hunter Valley NSW
-2.8   -0.4 GOULBURN (PROGRESS ST) Goulburn/Monaro NSW
-2.8   1.7 MORWELL (LATROBE VALLEY AIRPORT) W Gippsland VIC

Wettest Major City Extremes
Todays highest rainfall totals for the 24 hours to 9am. It includes the top 5 totals nationally followed by all reported falls of 50mm or more.

32.0 WALLA WALLA POST OFFICE Riverina E NSW
29.4 ALBURY (TABLE TOP (NYRIMBLA)) SW Slopes S NSW
29.0 RUSHY LAGOON (CAPE PORTLAND ROAD) E Coast TAS
28.0 MOUTAJUP Western Plains VIC
25.0 KENTBRUCK (MOUNT RICHMOND) W Coast VIC

  Max+/- norm Min+/- normRain to 9am
BROOME AIRPORT 32.5 +3.3 19.4 +4.1 0.0
PERTH AIRPORT 18.7 -0.1 10.0 +1.0 2.2
ALBANY AIRPORT 17.5 +0.9 7.4 -0.8 6.8
KALGOORLIE-BOULDER AIRPORT 18.2 +0.7 8.3 +2.2 0.2
DARWIN AIRPORT 32.5 +1.9 22.2 +2.2 0.0
ALICE SPRINGS AIRPORT 28.4 +8.6 11.2 +6.1 0.0
ADELAIDE (KENT TOWN) 17.7 +1.7 14.2 +6.0 10.0
MOUNT GAMBIER AERO 16.4 +2.6 12.7 +7.0 13.4
CAIRNS AERO 27.8 +1.9 20.8 +3.1 0.0
TOWNSVILLE AERO 28.1 +2.6 14.9 +0.4 0.0
ROCKHAMPTON AERO 26.7 +3.3 14.3 +3.5 0.0
AMBERLEY AMO 24.2 +2.7 6.8 -0.2 0.0
BRISBANE AERO 22.7 12.6 0.0
ARMIDALE AIRPORT AWS 15.3 1.1 0.2
COFFS HARBOUR MO 20.9 +1.6 8.8 -0.3 0.2
NEWCASTLE NOBBYS SIGNAL STATION AWS 22.8 +5.4 10.0 +0.4 0.0
SYDNEY (OBSERVATORY HILL) 21.1 +4.2 10.5 +1.3 0.0
PROSPECT DAM 22.4 +5.1 6.6 -0.8 0.0
WOLLONGONG UNIVERSITY 22.4 +4.8 8.7 -0.8 0.0
CANBERRA AIRPORT 17.8 +5.6 2.0 +1.1 0.0
WAGGA WAGGA AMO 20.8 +7.1 9.9 +6.2 1.2
MILDURA AIRPORT 16.3 +0.4 10.6 +5.4 0.0
EAST SALE AIRPORT 15.9 +1.7 2.1 -2.1 0.0
MELBOURNE REGIONAL OFFICE 16.3 +2.3 13.4 +6.6 0.2
LAVERTON RAAF 15.0 +0.9 13.4 +7.6 0.4
BALLARAT AERODROME 11.5 +0.8 9.0 +5.0 5.8
LAUNCESTON AIRPORT 13.0 +1.6 10.1 +7.3 0.4
HOBART (ELLERSLIE ROAD) 16.5 +4.6 5.7 +0.5 0.0

Downpours Gales & Gusts
High rainfall for periods of 6 hours or less. Highest wind gusts above 89km/h (storm force) or mean wind above 62km/h (gale force). Wind direction and mean windspeed shown in brackets.
SOUTH AUSTRALIA
    Lower SE
ROBE AIRFIELD
8.4mm in 47 min to 01:30 10.7mm/h
11.4mm in 1 hr to 01:30 11.4mm/h
17.0mm in 3 hr to 03:00 5.7mm/h
VICTORIA
    Wimmera S
LONGERENONG
6.4mm in 14 min to 17:14 27.4mm/h
10.2mm in 1 hr to 17:30 10.2mm/h
10.6mm in 1 hr to 18:00 10.6mm/h
    Lower NE
HUNTERS HILL
10.8mm in 1 hr to 22:30 10.8mm/h
12.4mm in 1 hr to 23:00 12.4mm/h
    Western Plains
LOOKOUT HILL
5.2mm in 7 min to 18:07 44.6mm/h
11.2mm in 1 hr to 18:30 11.2mm/h
13.0mm in 1 hr to 19:00 13.0mm/h
15.0mm in 3 hr to 21:00 5.0mm/h
    W Coast
CAPE OTWAY LIGHTHOUSE
10.4mm in 1 hr to 18:00 10.4mm/h
MORTLAKE RACECOURSE
18.0mm in 3 hr to 18:00 6.0mm/h
WARRNAMBOOL AIRPORT NDB
15.0mm in 3 hr to 18:00 5.0mm/h

WESTERN AUSTRALIA
    Lower West
CAPE LEEUWIN : 80(300/ 63 ) at 06:00
BUSSELTON JETTY : 72(270/ 63 ) at 07:01
QUEENSLAND
    Darling Downs E
INGLEWOOD FOREST : 128( 60/ 13 ) at 02:44
NEW SOUTH WALES
    Snowy Mtns
THREDBO AWS : 89(320/ 70 ) at 06:00
VICTORIA
    Upper NE
MT HOTHAM : 98(350/ 70 ) at 21:30
    E Central
MELBOURNE AIRPORT : 78( 10/ 63 ) at 04:00
TASMANIA
    Southeast
MOUNT WELLINGTON : 95(320/ 70 ) at 07:30
TASMAN ISLAND : 95(360/ 56 ) at 07:00