Over 18,000 people have been forced from their homes after several days of heavy rains. [online] Available at: https://www.abc.net.au/news/2021-03-23/nsw-floods-live-blog-evacuation-warnings-hawkesbury-river/100022362BBC, 2021a. Severe flooding occurred near the newly-built bridge in Windsor as the Hawkesbury River peaked at 12.9m on Wednesday morning (24 March), and has exceeded the major flood classification of 12.2m. The estimated flow at this location is estimated to be 6,717cumec, and has a return period of 46 years based on the river discharge (Table 2). In addition to having prolonged period of rainfall, it is also the intensity that is likely to result in such devastating floods. However, things should start to improve from the middle of the week. ), Table 2: Peak water level and flood classification at selected sites in New South Wales, Australia between 19 and 24 March 2021. She added: “I don’t know any time in state history where we have had these extreme weather conditions in such quick succession in the middle of a pandemic.”. We will securely store the data that you share. NSW floods: BOM warns dangerous conditions to continue, flooding forecast for inland areas – as it happened. This was followed by a high-pressure system stationed between Tasmania and New Zealand which pushed strong winds towards the coast of NSW for over a week (The Guardian, 2021b). River flood height peaked at Camden Haven River on Saturday morning (20 March), at two locations. At Laurieton, water level peaked at 2.47m and has exceeded the major flood threshold of 1.7m. All rights reserved. Find local businesses, view maps and get driving directions in Google Maps. Know your lows: East Coast Lows (and lookalike). The extreme weather affected not only the east coast of NSW, but also parts of Queensland including Brisbane and the Gold Coast which received high rainfall over the weekend (20–21 March). Floods levels observed at Windsor (2021) might be similar to 1990 records (The Sydney Morning Herald, 2021b). The maximum daily rainfall recorded at this site was 272mm, that is equivalent to an estimated return period of 50-years. NSW floods: weather eases but major flooding still occurring across state. Severe thunderstorms are likely to produce heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Rivers and dams have overflowed near Sydney after days of heavy rainfall, and the entire New South Wales coastline is now under a severe weather warning. To ensure you are kept up to date with all future event response and company updates, subscribe to our mailing list using the form below. [online] Available at: https://www.smh.com.au/national/nsw/before-and-after-satellite-imagery-show-early-impact-of-nsw-floods-20210323-p57d9b.htmlThe Sydney Morning Herald, 2021b. Table 1: Total rainfall accumulated at selected sites in New South Wales, Australia between 17 and 23 March 2021, and the maximum daily recorded during this period. [online] Available at: https://www.theguardian.com/australia-news/2021/mar/23/catastrophe-declared-for-nsw-as-5000-insurance-claims-submitted-for-flood-damageThe Guardian, 2021f. At least 18,000 people were evacuated from New South Wales (BBC, 2021a). 14 Deering St, Ulladulla NSW 2539 ATC Message Shoalhaven City Council acknowledges the traditional custodians of the land in which we live and work and their continuing cultural connections to … In addition to high rainfall levels, the Warragamba Dam may have contributed to severe floods in the Hawkesbury-Nepean River basin, affecting towns like Penrith, and surrounding areas such as Windsor and Richmond. More rain is on the way. Many news outlets have described the floods in Port Macquarie, Taree and nearby towns as a 1-in-100-year event (The Guardian, 2021a). Due to the heavy rainfall that fell over the region, the Warragamba Dam is the only Sydney dam that spilled as it was near full capacity, at 99.2% full by the afternoon of Saturday 19 March. In addition, flood is the most expensive natural catastrophe for insurers (The Guardian, 2021e). All rights reserved. Return period based on 7-day rainfall total at the selected sites illustrated in the figure. [online] Available at: https://www.theguardian.com/australia-news/2021/mar/22/nsw-flooding-state-pounded-by-rain-as-residents-along-hawkesbury-brace-for-worst-event-in-50-yearsThe Guardian, 2021b. Shoalhaven City Council is committed to sound floodplain management as outlined in the NSW Government’s 2005 Floodplain Development Manual. Having earlier peaked on Saturday at 6.5m. ‘Glad we’re out of there’: Residents scramble to safety as floodwaters rise. A series of eerie images from flood mapping experts show the shocking scale of the disastrous NSW floods, which destroyed thousands of homes … NSW rainfall for the week ending March 24, 2021(ABC News: Bureau of Meteorology) The entire NSW coast has been drowned by at least 200 millimetres, and in some places, more than 400mm of rain. © 2021 Associated Newspapers Limited. By Wednesday, Kempsey town was declared safe as the flood water levels on the Macleay River receded (The Guardian, 2021f). However, there was greater fluctuation year-on-year for insured claims, and a much more significant increase in the average claim size for homes and the buildings line of business (Figure 3) (Insurance Council Australia, 2020). We will not share your data with any third party. Insurance penetration rate in Australia for non-life insurance is 3.5% of GDP in 2019 (Swiss Re Institute, 2019). A return period has been estimated at the following river gauge sites, based on the intensity-frequency-curve provided by the Australia Bureau of Meteorology. According to the World Meteorological Organization (WMO), sea levels have been rising about 3 mm per year since 1993 – totaling a 200 mm increase (7.87 inches) in global averaged sea level since 1870. [online] Available at: https://www.smh.com.au/national/nsw/higher-warragamba-dam-wall-would-not-have-halted-floods-experts-say-20210322-p57cwa.htmlWauchope Gazette, 2021. 17.8mm was observed at Trunkey Creek within 15mins to 9:30am this morning. [online] Available at: https://www.theguardian.com/australia-news/2021/mar/22/nsw-flooding-rain-forces-evacuation-of-18000-people-on-mid-north-coast-and-sydneys-westThe Guardian, 2021d. Sorry, there was a problem with your subscription. 10m Australians under weather warning as two systems collide – as it happened. ABC News, 2021. When you have eliminated the JavaScript , whatever remains must be an empty page. Figure 2: Flooded areas as identified in aerial video footages near Gordon Street in Port Macquarie; JBA 30m Australia 1-in-50-year river flood map illustrates the extent of the event. Based on the maximum 1-day rainfall of 174.6mm, the return period is 1-in-5-year (Table 1)(Bureau of Meteorology, Australia). The Bureau of Meteorology said “increased rainfall, strong winds, damaging surf and abnormally high tides” are set to hit New South Wales on Tuesday. At Mount Seaview, the total amount that fell during this period of 907mm is four times the mean rainfall for March (243.5mm) since 1949 (Bureau of Meteorology).Major cities along the east coast such as Sydney, Wollongong, Grafton and Newcastle were placed under warning as heavy rainfall continued on Monday and Tuesday. Life-threatening floods have washed away homes and businesses with a deluge of rain inundating hundreds of kilometres of the New South Wales coast. News Release Insurance catastrophe extended to SE Queensland. Product IDN36503 is not available. The Government is offering emergency funds to people who have been forced to evacuate their homes. [online] Available at: https://www.smh.com.au/national/nsw/nsw-floods-live-updates-south-coast-told-to-prepare-for-heavy-rainfall-as-extreme-weather-event-continues-across-state-20210322-p57d0n.htmlThe Sydney Morning Herald, 2021c. There is a range of return period estimates across various flooded locations based on daily rainfall maximum and the total accumulated rainfall over a 7-day period. Supplies delivered to towns cut off by floodwater as Northern NSW braces for more rain. Total Fire Ban and Current Fire Danger Map; Tropical Cyclone Warnings and Information To access the footprint, email the team at [email protected] you like to find out more information about this event, our upcoming 5m flood mapping for Australia, and our existing climate change data for Australia, please get in touch. Many houses along the river channels and bays were built on elevated ground, and were not inundated.The estimated return period of the flood event in Port Macquarie and Laurieton based on 168-hour rainfall period is approximately 1 in 30-years (Table 1). The estimated return period based on 168-hours rainfall, is in agreement with observations made at specific sites and JBA’s 30m Australia Flood Maps. Due to the heavy rainfall that fell over the region, the Warragamba Dam is the only Sydney dam that spilled as it was near full capacity, at 99.2% full by the afternoon of Saturday 19 March. New South Wales Floods 2021. At North Haven, water levels peaked at 1.69m, just slightly below the major threshold of 1.7m (Bureau of Meteorology)(Table 2). 24 Hour Rainfalls. Prime Minister Scott Morrison called the situation “extremely dangerous”. The estimated return period for Mount Seaview over 168 hours is 200-years (Table 1)(Design Rainfall Data System, 2016).In addition to having prolonged period of rainfall, it is also the intensity that is likely to result in such devastating floods. At Camden Haven river flows were estimated to be approximately 1 in 50-years. Figure 1: Spatial distribution of total rainfall received across New South Wales, Australia between 17 and 23 March 2021 (9am GMT +10). [online] Available at: https://jsimpsonhttps.pps.eosdis.nasa.gov/imerg/gis/NYTimes, 2021. NSW NSW floods 2021: BOM warns that Taree River could reach levels of 1978 floodings. Tottenham is still a top job - so why don't the best managers seem interested? Thousands evacuated in Australia as 'life-threatening' floods inundate New South Wales By Helen Regan and Jessie Yeung , CNN Updated 4:26 PM ET, Mon March 22, 2021 Even though the weather systems that caused an excessive amount of rain to fall on NSW have passed, the rivers can still continue to swell and pose a flood threat to residents. NASA's Precipitation Processing Center, accessed. At North Haven, water levels peaked at 1.69m, just slightly below the major threshold of 1.7m (Bureau of Meteorology)(Table 2). The last three are located in the Hawkesbury-Nepean basin located to the north-west of Sydney (The Guardian, 2021e). Non-life insurance penetration, 2019. At least 18,000 people were evacuated from New South Wales (BBC, 2021a). A return period has been estimated at the following sites, based on the Design Rainfall Data System (2016) provided by the Australia Bureau of Meteorology. You can also obtain additional flood information for a specific property from Council for a fee. We help the insurance and property industries, governments, and financial institutions understand and manage global flood risk across a wide range of flood sources, including river, surface water and coastal. The estimated return period based on 168-hours rainfall, is in agreement with observations made at specific sites and JBA’s 30m Australia Flood Maps.In Laurieton, houses at Camden Haven were inundated, with flood depths estimated to be between 0.5m and 1.2m based on videos and images captured (Wauchope Gazette, 2021). (Data processed by JBA Risk Management. The Hawkesbury River at North Richmond peaked at 14.05m on Sunday afternoon (21 March); that is almost 4m above the major river height of 10.5m. When holidays to France could be allowed, and whether it will be on the green list. Locations which may be affected include Bowral, Jenolan Caves, Trunkey Creek and Taralga. Between November 2019 and February 2020, the insurance industry lost more than AUD$ 5 billion due to natural catastrophes and extreme weather events (The Guardian, 2021e).Based on the average insured losses from similar historical events, total claims for NSW and SE Queensland would amount to AUS$ 254.2 million (Insurance Council Australia, 2021). Flood Information - Hawkesbury 2021 No one has died in the flooding, which New South Wales Premier Gladys Berejiklian called “a miracle given what we have been through”. All updates will also give you the option to unsubscribe. March 23, 2021 7:40 am (Updated 8:24 am) Around 18,000 people have been evacuated from their homes due to serious flooding in New South Wales, Australia. Home and motor vehicle premiums and claims trends. Issued at 9:50 am Thursday, 25 February 2021. We will not share your data with any third party. [online] Available at: https://www.insurancecouncil.com.au/home-and-motor-vehicle-premiums-and-claims-trendsInsurance Council Australia, 2021. [online] Available at: https://www.smh.com.au/national/nsw/glad-we-re-out-of-there-residents-scramble-to-safety-as-floodwaters-rise-20210323-p57dau.htmlThe Sydney Morning Herald, 2021d. Figure 3: (Top) JBA 30m 1-in-50-year Australia river flood map on the west of Laurieton. Satellite images of Hawkesbury River flooding show true extent of NSW devastation By Paige Cockburn Posted 6 m minutes ago Fri Friday 26 Mar March 2021 at 8:19pm Port Macquarie received approximately 497mm of rainfall between 17 and 23 March, with the maximum daily rainfall being 174.6mm, with a return period estimate of 5-years (Bureau of Meteorology). NSW flooding: state pounded by rain as residents along Hawkesbury brace for worst event in 50 years. 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