07/03/2022
TOP PRIORITY: The Bureau and Emergency Services would appreciate this message being broadcast regularly.
Moderate to Major Flood Warning for the Hawkesbury Nepean Valley and Colo River
at Menangle, Camden, Wallacia, Penrith, North Richmond, Windsor, Sackville, Lower Portland, Wisemans Ferry and Putty Road
Issued at 11:57 pm EDT on Monday 7 March 2022
Flood Warning Number: 45
(*re-issued to update latest river heights in table*)
RENEWED RISES AND MAJOR FLOODING HIGHER OR SIMILAR TO LAST WEEK IS POSSIBLE ALONG THE NEPEAN AND COLO RIVERS
RENEWED RISES AND MAJOR FLOODING HIGHER OR SIMILAR TO THE MARCH 2021 EVENT IS POSSIBLE ALONG THE LOWER NEPEAN AND HAWKESBURY RIVER
MAJOR FLOODING IS OCCURRING AT MENANGLE, NORTH RICHMOND, WISEMANS FERRY, AND PUTTY ROAD
Heavy rainfall over the past week has caused major flooding in the Hawkesbury-Nepean Valley. Further heavy rainfall over the weekend and into Tuesday has the potential to cause renewed and higher flooding along the Upper Nepean, Nepean, Hawkesbury, and Colo Rivers.
Forecast rainfall for the remainder of Monday and Tuesday may cause river levels to rise to levels similar to last week's peaks along the Nepean River. Forecast river levels are similar to the March 2021 event along the Hawkesbury River. This will result in rapid river level rises and very deep and dangerous flooding. Higher river level rises are possible.
A Severe Weather Warning for heavy rainfall is current which includes the Hawkesbury-Nepean Valley.
Upper Nepean River:
Renewed moderate to major flooding is occurring along the Upper Nepean River. The river is currently at levels similar to those experienced last week.
The Nepean River at Menangle Bridge may reach around 15.50 metres midnight Monday into Tuesday, with major flooding just below the April 1988 event. Further rises possible.
The Nepean River at Camden Weir may reach near 11.00 metres around 05:00 am Tuesday, with moderate flooding. Further rises possible.
The Nepean River at Wallacia Weir is likely to exceed the moderate flood level (8.70 m) around 02:00 am Tuesday. The river level may exceed the major flood level (11.00 m) late Tuesday morning and may reach around 12.00 metres Tuesday afternoon. Further rises possible.
Hawkesbury and Lower Nepean River:
Major flooding is occurring along the Hawkesbury River at North Richmond. Major flooding is expected at Penrith and Windsor and downstream. Further rises to levels similar or higher than the March 2021 event are possible from Tuesday.
The Nepean River at Penrith is likely to exceed the moderate flood level (7.90 m) around 06:00 am Tuesday. The river level may reach around 9.00 metres Tuesday night, with moderate flooding. Further rises possible.
The Hawkesbury River at North Richmond (WPS) may reach around 13.50 metres Tuesday evening, with major flooding similar to the March 2021 event. Further rises possible.
The Hawkesbury River at Windsor (WPS) is likely to exceed the major flood level (12.20 m) around 08:00 am Tuesday. The river level may reach around 12.90 metres during Wednesday, with major flooding similar to the March 2021 event. Further rises possible.
The Hawkesbury River at Sackville may reach the major flood level (9.70 m) overnight Tuesday into Wednesday, similar to the March 2021 event. Further rises possible.
The Hawkesbury River at Lower Portland is likely to exceed the major flood level (7.60 m) around 05:00 am Tuesday. The river level may reach around 7.80 metres Tuesday afternoon, with major flooding similar to the March 2021 event. Further rises possible.
The Hawkesbury River at Wisemans Ferry may reach around 4.40 metres Tuesday morning, with major flooding similar to the March 2021 event. Further rises possible.
Colo River:
Major flooding is occurring along the Colo River at Putty Road.
The Colo River at Putty Road may reach around 12.80 metres Tuesday morning, with major flooding above the March 2021 event.
Flood Safety Advice:
In life threatening emergencies, call 000 (triple zero) immediately. If you require rescue, assistance to evacuate or other emergency help, ring NSW SES on 132 500.
* Avoid drowning. Stay out of rising water, seek refuge in the highest available place.
* Prevent damage to your vehicle. Move it under cover, away from areas likely to flood.
* Avoid being swept away. Stay out of fast-flowing creeks and storm drains.
* Never drive, ride or walk through flood water. Flood water can be deceptive and dangerous.
For more emergency information, advice, and access to the latest river heights and rainfall observations and forecasts:
* NSW SES: www.ses.nsw.gov.au
* RMS Live Traffic: www.livetraffic.com
* Latest River Heights and Rainfall Observations: www.bom.gov.au/nsw/flood/greatersydney.shtml
* Latest NSW Warnings: www.bom.gov.au/nsw/warnings/
* Rainfall Forecasts: www.bom.gov.au/australia/meteye/
* BOM NSW Twitter: www.twitter.com/BOM_NSW
Next Issue:
The next warning will be issued by 05:00 am EDT on Tuesday 08 March 2022.