Residents in Penrith are being warned that minor flooding on the Nepean River is expected, with more heavy rain predicted to fall in the coming days.
Low-lying areas along the Nepean River may be impacted by floodwater.
The Bureau of Meteorology advises moderate to heavy rainfall since Wednesday morning has caused significant river level rises along the Nepean River and its tributaries which has the potential to case minor flooding along the Nepean River at Menangle and Penrith, and along the Hawkesbury River at North Richmond from Thursday.
Further rainfall is forecast for the reminder of Thursday into Sunday which may significant flooding along the Nepean River, Hawkesbury River and their tributaries.
The situation is being closely monitored by the SES.
A flood watch for minor to moderate flooding is current for Nepean, Hawkesbury, Cox and the Colo Rivers.
The Nepean River at Penrith may reach the minor flood level (3.90 m) Thursday afternoon. Further rises are possible.
Overnight the NSW SES has 120 requests for assistance in Sydney for mainly leaking roofs and tress down.
Local roads have already been impacted by the rain.
“Keep your eyes on Luddenham Road,” one Weekender reader said.
“I just drove through and the river is remarkably high if we continue to get rain through the day it may get close to going under even today.”