Prosper in a dynamic world
Search

Heavy rain looms for eastern NSW

Widespread rain and thunderstorms will affect eastern Australia this weekend and early next week, with parts of eastern NSW expected to see more than 100 mm of rain by Monday.

A series of cold fronts and low pressure troughs will cause showers over a broad area of southern and eastern Australia during the remainder of this week.

This wet weather will initially be confined to parts of southern WA, SA, Vic and Tas on Thursday, with most areas only seeing light falls.

Showers and storms will spread further north into NSW from Friday and southern Qld from Saturday, as an upper-level trough pushes north and interacts with a feed of tropical moisture.

Forecast models suggest that rain will become more widespread and heavier over NSW and parts of southern Qld on the weekend as the upper-level trough transitions into a cut-off low above eastern Australia.

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 mm of rain and possibly more than 200 mm in some places.

Image: Comparison of accumulated rain between Thursday, April 27 and Monday, May 1 from three different forecast models.

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. Be sure to keep an eye on the latest warnings for the most up-to-date information on this evolving weather system.

DTN APAC provides a suite of services tailored towards the insurance industry. From severe weather ‘heads-up’ from our meteorologist team, to detailed warnings and extreme observation alerts, to post-event reporting, we can cover any major weather event. To find out more, please explore our website or email us at apac.sales@dtn.com.

Latest news

Satisfy your weather obsession with these news headlines from around the nation, and the world.

Signs of a positive Indian Ocean Dipole, but it may not follow the textbook

Waters off Indonesia have cooled in recent weeks, an indication that a positive Indian Ocean Dipole (IOD) event could be developing. It’s an important climate driver for Australia, and it could shape rainfall and temperatures heading into summer, with flow-on effects for farmers, energy and other industries.  What is the Indian Ocean Dipole?  The IOD […]

1.3 million lightning strikes and a record September downpour: the storms testing WA’s Goldfields

Leonora, WA, had its wettest September day on record earlier this month. Three weeks later, more than 1.3 million lightning pulses were detected within 800 km of the town in 48 hours. Why is a stalled trough delivering storms to mining country, and what it could mean for operations?  The DTN Total Lightning Network detected […]

A very low wind power week, likely to continue

A stubborn blocking high over southern Australia will make for a very quiet week for wind generation and the pattern behind it isn’t a one-off.   It’s the seasonal signature of a super (very strong) El Niño combined with a positive Southern Annular Mode (SAM), and both the historical record and the current seasonal forecast suggest it’s likely to keep recurring through spring before a potential switch from November.  The setup right […]

Fastest strengthening El Niño on record: Impacts on Australian monsoon timing and wet season planning

Australia’s Mining and Resources sectors are bracing for a wet season shaped by one of the most rapidly developing El Niño events on record.    Looking back at how the strongest El Niño events in Australian history have played out, it becomes apparent that mining operations in Australia should be planning for a later monsoon […]