Friday 18 JUN 2004

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2004

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Rain, gales, snow and storms in SE AUS
Cold snap continues in QLD

Rain, gales, snow and storms in SE AUS

Fronts and troughs running ahead of a major invasion of cold southern air brought storms to Adelaide, low level snow in NE VIC, useful rain to western VIC and widespread gales across the southeast today. A deep long wave trough running vertically through the atmosphere is stationed over eastern Australia and governing the broad scale movements of weather systems. At the surface, strong lows are south of TAS while a large area of cold air is moving northwards up the western side of the trough from about 50°S toward southeastern states, setting up strong thermal and pressure gradients.

A pair of cold fronts whisked eastwards across VIC and TAS this morning ushering in the first of the colder air. In NE VIC, snow fell down to 800m or lower south and east of Wodonga, with Wandiligong, Shelley, Coral Bank, Koetong, Jamieson, Tawonga and Stanley all experiencing snow according to press reports. At Stanley, 10km SE of Beechworth, 10cm of snow was reported on the ground. The Murray Valley Highway was blocked until about 10am by snow between Koetong and Shelley. In the VIC Alps, Falls Creek reported 14cm, Mt Hotham 6cm and Mt Buller 12cm of fresh snow to 9am. In NSW, Kosciuszko Chalet reported 45cm of snow on the ground at its 9am and 3pm observations, up 5cm on yesterday and all accumulating since Monday. The fronts also dropped 10 to 25mm of rain to 9am across central, central western and northeastern parts of VIC, particularly benefiting grain farmers concerned by low soil moisture levels. Further rain fell during the day.

A trough embedded in the westerly stream behind the fronts crossed Adelaide during the evening accompanied by hail, strong winds and flooding. Two bands of heavy rain crossed the metropolitan area and the Adelaide Hills, one just before 9pm and another around 11pm. A home had to be sandbagged to prevent flooding at Mt Barker, a tree collapsed onto a house at Crafers, lightning knocked out traffic lights at Wingfield and trees were brought down onto a number of metropolitan roads.

As Gales and Gusts below shows, there were high average wind speeds and gusts across VIC and TAS and the southern parts of SA and NSW. The highest wind runs for the 24 hours to 9 this morning were 960km at King Island (an average for the whole 24 hours of 40km/h) and 938km at Thredbo (39.1km/h). Most of the city of Goulburn and surrounding areas were plunged into darkness around 9pm when the main electricity transmission line supplying the city failed, believed due to the strong winds. Only parts of West Goulburn, Bradfordville and Mary's Mount escaped the blackout which extended as far as Crookwell and Collector and lasted over an hour.

Much of QLD, the NT and the Kimberley region of WA experienced minimum temperatures more than 4 degrees below normal this morning. The map above shows departures from normal while the map below shows actual temperatures, with the area likely to have experienced frosts (below about 3°) shaded gray and the subzero area shaded pink. BoM

Cold snap continues in QLD

The cool, dry, southern airmass that moved into QLD on Wednesday has been carried on the Trade Winds across most of tropical Australia resulting in an exceptionally broad area of low minimum temperatures this morning. The anomaly map above right shows that most of the northern half of the country experienced minima between 4 and 11 below the June average. Proserpine Airport, close to the coast and 350km north of the Tropic of Capricorn, recorded an overnight low of 1.8, nearly 11 below average. Other unusually low readings were Hughenden Airport in the Gulf Country 0.2, Normanton, right on the Gulf, 8.6 and Borroloola, on the Gulf in the NT, 4.9.

Frost level temperatures covered much of central and SE QLD as well as the southern NT. Frosts are generally accepted to have occurred when the temperature measured in a standard Stevenson Screen, 1.5m above ground level, is 2°C or less. In QLD, Oakey recorded a screen minimum of -5.1 (-8.3 on the grass) and Stanthorpe -5.0. In the NT, Arltunga (90km ENE of Alice Springs) recorded the only screen sub-zero minimum with -1.5, but low grass minima were reported from Ali Curung -4.5, Alice Springs Airport -2.6, Arltunga -2.2, Watarrka -1.6 and Wave Hill -1.2. Wave Hill Station is 690km north of the Tropic and 350km SSW of Katherine.

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

30.0 WEIPA AERO N Peninsula QLD
30.0 NORTHERN ENDEAVOUR Islands ISL
29.6 COCONUT ISLAND N Peninsula QLD
29.5 KOWANYAMA AIRPORT Gulf Country QLD
29.3 COCOS ISLAND AIRPORT Islands ISL

+5.6   22.8 MENINDEE POST OFFICE Lower Darling NSW
+5.3   24.9 MARLA POLICE STATION NW Pastoral SA
+4.4   28.0 GASCOYNE JUNCTION W Gascoyne WA
+4.4   24.3 OODNADATTA AIRPORT NE Pastoral SA
+4.3   25.2 CARNEGIE Interior WA
+4.3   25.6 THREE RIVERS E Gascoyne WA

26.0 NORTHERN ENDEAVOUR Islands ISL
25.2 COCOS ISLAND AIRPORT Islands ISL
24.2 HORN ISLAND N Peninsula QLD
23.9 CHRISTMAS ISLAND AERO Islands ISL
23.4 COCONUT ISLAND N Peninsula QLD

+6.2   12.3 BALGAIR Eucla WA
+5.5   12.0 PAYNES FIND E Gascoyne WA
+5.5   12.9 MORAWA Central West WA
+5.0   11.1 KALGOORLIE-BOULDER AIRPORT Goldfields WA
+4.9   13.1 EUCLA Eucla WA

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

-1.8 THREDBO AWS Snowy Mtns NSW
-1.5 MT HOTHAM Upper NE VIC
-0.7 FALLS CREEK Upper NE VIC
-0.3 CHARLOTTE PASS (KOSCIUSKO CHALET) Snowy Mtns NSW
0.0 PERISHER VALLEY SKI CENTRE Snowy Mtns NSW
0.0 MOUNT BULLER Upper NE VIC
0.0 MT BAW BAW W Gippsland VIC
0.0 MOUNT WELLINGTON Southeast TAS

-6.2   10.0 PEAK HILL POST OFFICE CW Plains S NSW
-5.9   9.2 QUANDIALLA POST OFFICE SW Slopes N NSW
-5.8   8.9 COWRA AIRPORT CW Slopes S NSW
-5.4   8.4 COWRA RESEARCH CENTRE C Tablelands S NSW
-5.4   9.5 PARKES (MACARTHUR STREET) CW Slopes S NSW

-9.1 CHARLOTTE PASS (KOSCIUSKO CHALET) Snowy Mtns NSW
-7.3 GLEN INNES AIRPORT AWS N Tablelands W NSW
-7.1 THREDBO AWS Snowy Mtns NSW
-7.0 TENTERFIELD (FEDERATION PARK) N Tablelands W NSW
-5.7 MT HOTHAM Upper NE VIC

-10.9   1.8 PROSERPINE AIRPORT Central Coast E QLD
-9.8   6.0 TIMBER CREEK N Rivers NT
-9.5   -7.0 TENTERFIELD (FEDERATION PARK) N Tablelands W NSW
-9.3   2.3 WAVE HILL N Rivers NT
-9.2   5.0 MANDORA E Pilbara WA
-9.2   3.7 GEORGETOWN POST OFFICE Upper Carpentaria QLD

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.

91.2 BLACK SPUR E Central VIC
60.6 GLADYSDALE E Central VIC
59.0 WARBURTON (O'SHANNASSY RESERVOIR) E Central VIC
41.2 HAINES JUNCTION (MOUNT SABINE) W Coast VIC
37.8 LONGWOOD Adelaide/Lofty SA

SOUTH AUSTRALIA
    Adelaide/Lofty
37.8 LONGWOOD

VICTORIA
    E Central
91.2 BLACK SPUR
60.6 GLADYSDALE
59.0 WARBURTON (O'SHANNASSY RESERVOIR)
    W Coast
41.2 HAINES JUNCTION (MOUNT SABINE)

  Max+/- norm Min+/- normRain to 9am
BROOME AIRPORT 25.2 -4.0 8.4 -6.9 0.0
ALBANY AIRPORT 15.0 -1.6 9.3 +1.1 2.4
PERTH AIRPORT 17.5 -1.3 9.3 +0.3 0.8
KALGOORLIE-BOULDER AIRPORT 17.3 -0.2 11.1 +5.0 0.0
DARWIN AIRPORT 27.8 -2.8 15.8 -4.2 0.0
ALICE SPRINGS AIRPORT 21.1 +1.3 1.1 -4.0 0.0
ADELAIDE (KENT TOWN) 16.3 +0.3 9.0 +0.8 9.0
MOUNT GAMBIER AERO 14.4 +0.6 6.0 +0.3 14.4
CAIRNS AERO 23.3 -2.6 10.8 -6.9 0.0
TOWNSVILLE AERO 22.9 -2.6 9.6 -4.9 0.0
ROCKHAMPTON AERO 22.2 -1.2 7.8 -3.0 0.0
AMBERLEY AMO 21.1 -0.4 -1.8 -8.8 0.0
BRISBANE AERO 20.8 3.8 0.0
ARMIDALE AIRPORT AWS 10.3 -1.6 0.4
COFFS HARBOUR MO 18.6 -0.7 3.9 -5.2 0.0
NEWCASTLE NOBBYS SIGNAL STATION AWS 14.6 -2.8 8.1 -1.5 1.2
SYDNEY (OBSERVATORY HILL) 18.0 +1.1 8.4 -0.8 0.4
PROSPECT DAM 17.5 +0.2 5.5 -1.9 0.0
WOLLONGONG UNIVERSITY 17.7 +0.1 6.8 -2.7 0.0
CANBERRA AIRPORT 8.5 -3.7 3.8 +2.9 0.0
WAGGA WAGGA AMO 9.3 -4.4 1.9 -1.8 7.4
MILDURA AIRPORT 16.5 +0.6 2.6 -2.6 3.0
EAST SALE AIRPORT 14.7 +0.5 6.7 +2.5 2.6
MELBOURNE REGIONAL OFFICE 15.1 +1.1 7.8 +1.0 12.2
LAVERTON RAAF 15.0 +0.9 6.8 +1.0 7.8
BALLARAT AERODROME 12.1 +1.4 2.1 -1.9 12.8
LAUNCESTON AIRPORT 11.1 -0.3 1.5 -1.3 9.2
HOBART (ELLERSLIE ROAD) 12.1 +0.2 2.9 -2.3 6.8

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
    Adelaide/Lofty
KUITPO FOREST RESERVE
10.6mm in 1 hr to 23:30 10.6mm/h
VICTORIA
    E Central
MELBOURNE REGIONAL OFFICE
10.4mm in 30 min to 19:00 20.8mm/h
10.4mm in 1 hr to 19:00 10.4mm/h
    W Coast
PORTLAND (CASHMORE AIRPORT)
6.0mm in 16 min to 17:00 22.5mm/h
TASMANIA
    N Coast
LUNCHEON HILL FORESTRY
15.0mm in 3 hr to 00:00 5.0mm/h

SOUTH AUSTRALIA
    W Agricultural
NEPTUNE ISLAND : 96(240/ 80 ) at 19:13
    Adelaide/Lofty
MOUNT LOFTY : 98(300/ 61 ) at 18:03
MOUNT CRAWFORD (TOWER HILL) : 82(260/ 67 ) at 14:19
NEW SOUTH WALES
    Snowy Mtns
THREDBO AWS : 87(300/ 69 ) at 00:00
VICTORIA
    Upper NE
FALLS CREEK : 109(330/ 58 ) at 22:31
    W Gippsland
WILSONS PROMONTORY LIGHTHOUSE : 100(280/ 56 ) at 07:09
KINGFISH B SHIP LOG 272 : 80(300/ 69 ) at 06:20
    E Central
MELBOURNE AIRPORT : 78(360/ 63 ) at 00:30
RHYLL : 82(340/ 63 ) at 01:07
FAWKNER BEACON : 78(350/ 67 ) at 00:30
    W Coast
CAPE OTWAY LIGHTHOUSE : 87(260/ 63 ) at 22:51
COLAC (MT GELLIBRAND) : 98(330/ 80 ) at 00:12
PORT FAIRY AWS : 76(250/ 65 ) at 22:23
CAPE NELSON LIGHTHOUSE : 91(260/ 70 ) at 20:17
TASMANIA
    N Coast
CAPE GRIM BAPS : 108(280/ 69 ) at 20:00
    E Coast
SWAN ISLAND : 83(330/ 63 ) at 04:16
    Southeast
MAATSUYKER ISLAND LIGHTHOUSE : 100(300/ 89 ) at 06:00
MOUNT WELLINGTON : 93(260/ 67 ) at 10:30
TASMAN ISLAND : 98(360/ 61 ) at 03:00
HARTZ MOUNTAIN (KEOGHS PIMPLE) : 91(270/ 54 ) at 07:22
    W Coast
STRAHAN AERODROME : 85(280/ 67 ) at 03:06
    King Island
KING ISLAND AIRPORT : 78(330/ 63 ) at 00:00
ISLANDS
    Islands
HOGAN ISLAND : 117(280/ 69 ) at 18:39