November 2020
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Monthly Weather Review Australia November 2020 The Monthly Weather Review - Australia is produced by the Bureau of Meteorology to provide a concise but informative overview of the temperatures, rainfall and significant weather events in Australia for the month. To keep the Monthly Weather Review as timely as possible, much of the information is based on electronic reports. Although every effort is made to ensure the accuracy of these reports, the results can be considered only preliminary until complete quality control procedures have been carried out. Any major discrepancies will be noted in later issues. We are keen to ensure that the Monthly Weather Review is appropriate to its readers' needs. If you have any comments or suggestions, please contact us: Bureau of Meteorology GPO Box 1289 Melbourne VIC 3001 Australia [email protected] www.bom.gov.au Units of measurement Except where noted, temperature is given in degrees Celsius (°C), rainfall in millimetres (mm), and wind speed in kilometres per hour (km/h). Observation times and periods Each station in Australia makes its main observation for the day at 9 am local time. At this time, the precipitation over the past 24 hours is determined, and maximum and minimum thermometers are also read and reset. In this publication, the following conventions are used for assigning dates to the observations made: Maximum temperatures are for the 24 hours from 9 am on the date mentioned. They normally occur in the afternoon of that day. Minimum temperatures are for the 24 hours to 9 am on the date mentioned. They normally occur in the early morning of that day. Mean temperatures are the average of the daily maximum and daily minimum temperatures. Daily rainfall is for the 24 hours to 9 am on the date mentioned. This means a significant fraction of the rain may have occurred on the previous calendar day. Monthly rainfall is for the period from 9 am on the last day of the previous month to 9 am on the last day of this month. Maximum daily wind gusts are in the 24 hours from midnight to midnight. Climatological values The climatological averages shown in the text and tables are generally long-term means based on observations from the years 1961–1990. They are not shown for sites with less than 25 years of record in that time, as they cannot then be calculated reliably. Climatological extremes are generally taken from all available years of record; the number of years can vary markedly from site to site. Records The tables of records are not exhaustive, as they only show sites with at least 30 years of record. This may exclude locations where a new site has been established; this means even some major cities and towns may not be listed. Maps The temperature and rainfall maps are intended to give an overview of the country. There could be discrepancies between the values shown on these maps and those at individual locations, as a result of the way the maps are generated. A wide range of maps of rainfall, temperature and other variables, covering the whole country and smaller regions can be found at www.bom.gov.au/climate/maps. Accessing data Tables of daily values for selected sites are included toward the back of the Monthly Weather Review. Data from many more sites and for other times are available from www.bom.gov.au/climate/data/. Copyright © Commonwealth of Australia 2021 This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced without prior written permission from the Bureau of Meteorology. Requests and enquiries concerning reproduction and rights should be addressed to: Publishing Unit, Bureau of Meteorology, GPO Box 1289, Melbourne VIC 3001 Product code IDCKGC14R1. Prepared on 27 January 2021 Cover photograph Primary and secondary bows visible during a shower at Hallett Cove. Photograph by Mark Anolak, 16 October 2009. Used with permission. Overview • Australia's mean temperature was the warmest on • Rainfall was below average for Australia overall, record for November. despite above average rainfall in parts of north, and • Both the national mean maximum and mean west Western Australia. minimum temperature were the warmest on • Rainfall was well below average for south-eastern record for November for Australia as a whole. Queensland, north-eastern New South Wales, • Temperatures during November were warmer than south and central Tasmania; for Tasmania it was average for most of Australia, but cooler than the ninth-driest November on record. average in south-west Western Australia. Areal averages in November 2020 Rainfall anomaly Mean maximum Mean minimum Mean temperature temperature anomaly temperature anomaly anomaly Australia −42% +2.89 °C +2.09 °C +2.49 °C highest highest highest Western Australia +34% +1.79 °C +1.38 °C +1.59 °C 9th-highest 3rd-highest 4th-highest Northern Territory −55% +3.16 °C +2.92 °C +3.04 °C highest highest highest South Australia −71% +4.38 °C +2.33 °C +3.36 °C highest 4th-highest highest Queensland −65% +2.85 °C +2.17 °C +2.51 °C 2nd-highest 2nd-highest 2nd-highest New South Wales −54% +3.86 °C +2.43 °C +3.15 °C 5th-highest 6th-highest 5th-highest Victoria −33% +3.85 °C +2.51 °C +3.18 °C 2nd-highest 5th-highest 2nd-highest Tasmania −50% +2.52 °C +1.32 °C +1.92 °C 4th-highest 5th-highest 4th-highest 1 Monthly Weather Review - Australia - November 2020 Extremes in November 2020 Hottest day Coldest night Wettest day Warmest overall Coolest overall Wettest overall Strongest wind gust Australia 48.0 °C −3.7 °C 191.0 mm 34.3 °C 8.5 °C 365.0 mm 157 km/h at Andamooka (SA) at Mount Hotham at Moruya at Fitzroy Crossing at Mount Read at Bellenden Ker at Wilsons on the 28th (Vic.) on the 6th (Plumwood) (NSW) Aero (WA) (Tas.) Top Stn (Qld) Promontory on the 1st Lighthouse (Vic.) on the 29th Western 46.5 °C 2.4 °C 103.5 mm 34.3 °C 14.6 °C 210.5 mm 111 km/h Australia at Fitzroy Crossing at Eyre on the 16th at Theda on the at Fitzroy Crossing at Shannon at Theda at Yampi Sound Aero on the 13th 23rd Aero (Defence) on the 19th Northern 45.3 °C 11.0 °C 107.4 mm 33.8 °C 204.5 mm 115 km/h Territory at Jervois on the at Arltunga on the at Wandie Creek on at Lajamanu Airport 29.5 °C at Labelle Downs at Bradshaw on 28th and 8th the 15th at Pirlangimpi the 11th Walungurru Airport Airport on the 28th South 48.0 °C 0.1 °C 27.6 mm 29.7 °C 16.9 °C 50.4 mm 124 km/h Australia at Andamooka on at Keith (Munkora) at Millicent on the at Moomba Airport at Mount Lofty at Mount Gambier at Sellicks Hill the 28th on the 1st 30th Aero (Mount Terrible Radar) on the 22nd Queensland 47.1 °C 4.1 °C 160.0 mm 19.8 °C 365.0 mm 115 km/h at Birdsville Airport at Applethorpe on at Bramwell on the 32.8 °C at Applethorpe at Bellenden Ker at Longreach Aero on the 30th the 6th 26th at Camooweal Top Stn on the 12th Township New South 46.9 °C −3.6 °C 191.0 mm 28.6 °C 9.9 °C 256.0 mm 146 km/h Wales at Smithville AWS at Perisher Valley at Moruya at Wanaaring at Thredbo AWS at Moruya at Newcastle on the 28th AWS on the 8th (Plumwood) on the (Borrona Downs (Plumwood) Nobbys Signal 1st AWS) Station AWS on the 16th Victoria 45.8 °C −3.7 °C 63.2 mm 23.5 °C 10.9 °C 130.4 mm 157 km/h at Ouyen (Post at Mount Hotham at Moorabbin at Mildura Airport at Falls Creekand at Toolangi (Mount at Wilsons Office) on the 28th on the 6th Airport on the 23rd Mount Buller St Leonard DPI) Promontory Lighthouse on the 29th Tasmania 34.8 °C −3.4 °C 56.2 mm 17.0 °C 8.5 °C 184.8 mm 139 km/h at Scotts Peak Dam at Liawenee on the at Lake Margaret at Hobart (Ellerslie at Mount Read at Lake Margaret at Hogan Island on on the 11th 8th Dam on the 17th Road) Dam the 29th In this table Hottest day is the highest daily maximum temperature, Coldest night is the lowest daily minimum temperature, Wettest day is the highest daily rainfall total, Warmest overall is the highest mean monthly temperature, Coolest overall is the lowest mean monthly temperature and Wettest overall is the highest total monthly precipitation. 2 Monthly Weather Review - Australia - November 2020 Significant weather Heatwaves on the 15th; Greensborough, Eltham, Diamond Creek, Ringwood and Lilydale were the most affected A number of heatwaves affected eastern parts of suburbs. Thunderstorms, locally severe, affected Australia during November. A low- to severe-intensity parts of Greater Melbourne on the 22nd; the State heatwave affected much of north-west to south-east Emergency Services received more than 150 calls for Queensland around the middle of the month. A assistance, mostly for flash flooding. significant heatwave came at the end of the month as hot air was drawn from arid central Australia into Queensland south-eastern Australia ahead of the passage of a cold Bushfires front. A fire at Fraser Island (K'gari) Eurong had been Large areas experienced daily maximum burning since mid-October and was still burning at the temperatures more than 10 degrees above average start of November.