The Bureau of Meteorology says heavy rainfall and thunderstorms forecast from Sunday across parts of NSW’s Hawkesbury-Nepean Valley have the “potential to cause renewed river level rises to areas already impacted by flooding”.
This extends into the Hunter, Paterson, Williams, Gloucester and Manning rivers, with moderate to major flooding possible.
Flooding in Cumberland Reach along the Hawkesbury River on Friday.Credit:Nick Moir
The bureau said “thundery rain” had spread across Sydney overnight, with the heaviest falls in the western suburbs. Between 9am on Saturday and 7.30am on Sunday, Richmond received 116.4 millimetres, while Penrith and Horsley Park received close to 80mm.
“The focus of the heaviest rainfall, and rivers at greatest risk, are those extending from greater Sydney to the Hunter and Manning Rivers, where moderate to major flooding is possible,” the bureau’s flood watch advised on Sunday morning.
“The weather system may also cause minor to moderate flooding along coastal rivers from the Bellinger to Myall Rivers along the NSW Mid North Coast. Minor to moderate flooding is possible along the NSW South Coast from the Illawarra to Bega.”
A severe weather warning for heavy rainfall was issued on Sunday morning for people in the Illawarra and parts of the Hunter, Sydney metropolitan, South Coast, Central Tablelands and Southern Tablelands forecast districts.
Six-hourly rainfall totals between 70 and 140 millimetres are possible on Sunday morning around the eastern tablelands, eastern escarpment and Illawarra.
Conditions are expected to ease in the northern parts of the warning area on Sunday afternoon before increasing over the South Coast from Sunday evening.
“Heavy rainfall will then likely extend throughout the warning area by early Monday morning,” the bureau said.
Notable rainfall totals yesterday included 49.8mm at Picton in the two hours to 9.45pm, 45mm at Menangle Bridge in the one hour to 9.45pm, 46mm at Majors Creek, south of Braidwood in the Southern Tablelands, in the three hours to 8pm, including 32mm in half an hour, and 40.4mm at Lake Bathurst in the one hour to 5.15pm.
A severe thunderstorm warning for heavy rainfall has also been issued for parts of the state’s north. Locations which may be affected include Armidale, Glen Innes, Dorrigo, Guyra and Emmaville.
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2022-03-05 20:27:33Z
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