Heavy rain is expected to wash out the weekend in eastern Australia, dumping as much as 200 millimetres in some areas.
Weatherzone issued a forecast for widespread rain and thunderstorms over the weekend and into early next week.
Some regions of eastern NSW could receive more than 100 millimetres of rain by Monday, and possibly more than 200 millimetres.
“Severe weather warnings, flood watches and flood warnings may be issued for parts of eastern NSW this weekend as we start to get a clearer picture of where and how much rain will fall,” said Weatherzone’s bulletin released Thursday night.
“Be sure to keep an eye on the latest warnings for the most up-to-date information on this evolving weather system.”
The autumn wet is being caused by a series of cold fronts and low pressure troughs.
Weatherzone said showers and storms would spread further north into NSW from Friday and southern Queensland from Saturday.
“Forecast models suggest that rain will become more widespread and heavier over NSW and parts of southern Queensland on the weekend as the upper-level trough transitions into a cut-off low above eastern Australia,” the website stated.
“At this stage, the heaviest rain is likely to occur in NSW between Saturday and Monday.
“One area of particular risk for heavy rain and flooding will be the southern half of the NSW coast and adjacent ranges, where a focused stream of onshore winds could produce more than 100 millimetres of rain and possibly more than 200 millimetres in some places.”
