Australian Weather News -- 29 JUL 2001

Australian Weather News

Sunday, 29 JUL 2001

Record July warmth presages heavy rain for Perth area

Temperature departures from average, both minimum (above) and maximum (below) were 8 to 11 above the norm today in southern WA. BoM
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High temperatures for July were widespread across southern Western Australia today. Unusually, both overnight minima and daytime maxima were commonly 8 to 11° above average. At five weather stations, ranging from the central north to the south coast and east to the Goldfields, it was the hottest July day since records began 40 to 50 years ago (see below). Strengthening northerlies ahead of a slow-moving trough were responsible. The record warmth also allowed unseasonably high humidity levels to develop, which combined with instability ahead of an advancing trough to produce several hours of torrential rain around Perth during the evening, and break some long-standing July rainfall records (details in story for 30 July 2001).

National weather extremes for today Data provided by the Bureau of Meteorology Last updated at 17:35 EDST on 03/08/01
Quality control note: Data is complete, and has been visually checked by AWN for gross errors. Less obvious errors may remain. See Explanation of Extremes Pages for more information
Records set this day (previous record and years of computerised record shown in brackets): Highest daily maximum temperature for July: Murchison WA: 29.5 (28.8, 48) Paynes Find WA: 27.5 (26.5, 48) Windy Harbour WA: 22.0 (21.8, 41) Cashmere Downs WA: 28.4 (26.6, 47) Yeelirrie WA: 27.9 (27.8, 47)
Todays highest rainfall totals for the 24 hours to 9am. It includes the top 5 totals received, and/or all reported falls of 50mm or more. 81.2 NELSON BAY (MONTEVIDEO PARADE) Hunter Valley NSW 51.2 HUNTER SPRINGS (WONDECLA) Hunter Valley NSW 29.6 KALBARRI Central West WA 27.6 YANDANOOKA Central West WA 27.4 NORAH HEAD LIGHTHOUSE Hunter Valley NSW *WESTERN AUSTRALIA* *Central West* 29.6 KALBARRI 27.6 YANDANOOKA *NEW SOUTH WALES* Hunter Valley 81.2 NELSON BAY (MONTEVIDEO PARADE) 51.2 HUNTER SPRINGS (WONDECLA) 27.4 NORAH HEAD LIGHTHOUSE	High rainfall for periods of 6 hours or less. *WESTERN AUSTRALIA* *Lower West* PERTH AIRPORT 8.4mm in 7 min to 17:30 72.0mm/h 17.4mm in 1 hr to 17:30 17.4mm/h 23.2mm in 1 hr to 18:00 23.2mm/h 30.0mm in 3 hr to 18:00 10.0mm/h 13.8mm in 1 hr to 18:30 13.8mm/h 5.0mm in 14 min to 19:00 21.4mm/h 15.4mm in 1 hr to 19:00 15.4mm/h 16.8mm in 1 hr to 19:30 16.8mm/h 10.6mm in 30 min to 20:00 21.2mm/h 18.2mm in 1 hr to 20:00 18.2mm/h 16.0mm in 1 hr to 20:30 16.0mm/h 40.0mm in 3 hr to 21:00 13.3mm/h 69.0mm in 6 hr to 21:00 11.5mm/h JANDAKOT AERO 11.6mm in 1 hr to 17:30 11.6mm/h 12.4mm in 1 hr to 18:00 12.4mm/h 7.8mm in 38 min to 21:00 12.3mm/h 15.0mm in 3 hr to 21:00 5.0mm/h GINGIN AERO 12.6mm in 1 hr to 22:00 12.6mm/h 12.4mm in 1 hr to 23:00 12.4mm/h SWANBOURNE 10.4mm in 1 hr to 17:30 10.4mm/h 15.0mm in 3 hr to 18:00 5.0mm/h 7.2mm in 31 min to 19:28 13.9mm/h 11.6mm in 30 min to 21:00 23.2mm/h 27.0mm in 3 hr to 21:00 9.0mm/h 15.0mm in 1 hr to 21:30 15.0mm/h PERTH METRO 12.4mm in 30 min to 17:30 24.8mm/h 14.6mm in 1 hr to 17:30 14.6mm/h 16.6mm in 1 hr to 18:00 16.6mm/h 24.0mm in 3 hr to 18:00 8.0mm/h 10.6mm in 1 hr to 19:30 10.6mm/h 22.0mm in 3 hr to 21:00 7.3mm/h 10.6mm in 1 hr to 22:00 10.6mm/h BICKLEY 19.4mm in 43 min to 17:43 27.1mm/h 24.4mm in 1 hr to 18:00 24.4mm/h 31.0mm in 3 hr to 18:00 10.3mm/h 13.4mm in 37 min to 19:00 21.7mm/h 20.2mm in 1 hr to 19:00 20.2mm/h 12.6mm in 37 min to 19:37 20.4mm/h 13.6mm in 23 min to 20:00 35.5mm/h 26.2mm in 1 hr to 20:00 26.2mm/h 53.0mm in 3 hr to 21:00 17.7mm/h 84.0mm in 6 hr to 21:00 14.0mm/h *SW & S Coast* DWELLINGUP FORESTRY 11.6mm in 1 hr to 19:00 11.6mm/h *ISLANDS* *Islands* NORFOLK ISLAND AERO 6.0mm in 31 min to 07:00 11.6mm/h 15.0mm in 1 hr to 08:00 15.0mm/h 10.8mm in 1 hr to 08:30 10.8mm/h 17.0mm in 3 hr to 10:00 5.7mm/h LORD HOWE ISLAND AERO 17.4mm in 1 hr to 22:00 17.4mm/h
Todays highest & lowest temperatures
Maximum	Minimum
31.3 OENPELLI Darwin-Daly NT 31.1 WEIPA AERO N Peninsula QLD 31.0 JABIRU AIRPORT Darwin-Daly NT 30.6 GASCOYNE JUNCTION W Gascoyne WA 30.2 BATCHELOR AERO Darwin-Daly NT	25.0 NORTHERN ENDEAVOUR Islands 24.0 COCONUT ISLAND N Peninsula QLD 23.0 CHRISTMAS ISLAND AERO Islands 22.8 HORN ISLAND N Peninsula QLD 21.3 TROUGHTON ISLAND N Kimberley WA
4.0 THREDBO (CRACKENBACK STATION) AWS Snowy Mtns NSW 5.3 MOUNT WELLINGTON Southeast TAS 6.5 PERISHER VALLEY SKI CENTRE Snowy Mtns NSW 6.5 MT HOTHAM Upper NE VIC 6.8 MOUNT READ W Coast TAS	-6.0 LIAWENEE AWS Central Plateau TAS -4.0 CHARLOTTE PASS (KOSCIUSKO CHALET) Snowy Mtns NSW -4.0 THREDBO (CRACKENBACK STATION) AWS Snowy Mtns NSW -3.6 MT HOTHAM Upper NE VIC -3.5 PERISHER VALLEY SKI CENTRE Snowy Mtns NSW
Todays greatest temperature variations from normal
Maximum	Minimum
+11.1 28.4 BALLADONIA Eucla WA +11.1 28.4 CASHMERE DOWNS Goldfields WA +9.7 26.2 KALGOORLIE-BOULDER AIRPORT Goldfields WA +9.5 28.3 MEEKATHARRA AIRPORT Murchison WA +9.4 27.7 LEONORA Goldfields WA	+11.3 16.6 PAYNES FIND Murchison WA +10.8 17.1 MURCHISON W Gascoyne WA +10.2 13.0 CAMDEN AIRPORT AWS Illawarra NSW +9.0 13.8 HYDEN Gt Southern WA +9.0 14.8 CASHMERE DOWNS Goldfields WA +9.0 14.4 YARRAS (MOUNT SEAVIEW) MidNorth Coast S NSW
-3.3 27.6 PIRLANGIMPI Darwin-Daly NT -2.4 12.5 KEITH Upper SE SA -2.3 28.3 KATHERINE AVIATION MUSEUM Darwin-Daly NT -2.2 29.0 KURI BAY N Kimberley WA -2.2 29.0 WYNDHAM POST OFFICE N Kimberley WA -2.2 27.0 VICTORIA RIVER DOWNS Victoria NT	-9.7 8.5 COOKTOWN MISSION STRIP N Coast--Barron QLD -9.3 2.0 KAIRI RESEARCH STATION N Coast--Barron QLD -9.2 7.9 CAIRNS AERO N Coast--Barron QLD -9.1 3.0 GEORGETOWN POST OFFICE Upper Carpentaria QLD -9.0 6.1 TIMBER CREEK Victoria NT
Highest wind gusts above 89km/h or mean wind above 62km/h (gale force). Wind direction and mean windspeed shown in brackets. CAPE LEEUWIN SW & S Coast WA : 85 (300/ 70 ) at 22:01 NORAH HEAD AWS Hunter Valley NSW: 78 (190/ 63 ) at 17:30 KURNELL AWS Sydney--east NSW: 102 (180/ 65 ) at 00:34 LITTLE BAY (THE COAST GOLF CLUB) Sydney--east NSW: 96 (200/ 63 ) at 00:33 MONTAGUE ISLAND LIGHTHOUSE South Coast NSW: 91 (200/ 67 ) at 00:12 MT HOTHAM Upper NE VIC: 78 (150/ 63 ) at 00:00	Other extremes ..