Fairfax Media Network

Weather News

Flood alert for NSW

Alex Zadnik, Monday February 27, 2012 - 14:00 EDT

Heavy rain and thunderstorm activity is going to track slowly across southern and central NSW this week, bringing an increased threat of both flash flooding and river flooding.

The Bureau of Meteorology issued a 'Flood Watch' just after 1pm on Monday, highlighting that there is a possibility of river flooding in a number of catchments through southern and central parts of the state.

The river valleys included in the warning include the Hawkesbury-Nepean, the Queanbeyan-Molonglo, Murrumbidgee, Lachlan and Macquarie. All rivers in the South Coast district of NSW are also included.

The 'Flood Watch' is a 'heads up' for future possible flooding and differs from a 'Flood Warning', which is issued by the Bureau when a river is actually in flood.

There is however a significant risk of flooding through southern and central parts of the state, as a slow-moving low pressure trough edges into NSW during Tuesday from its current position over South Australia and Victoria. High levels of atmospheric moisture ahead of the trough increases the potential for heavy rainfall and thunderstorms, which could initially bring flash flooding. The slow-moving nature of the trough will allow rain totals to build
over the river catchments through the middle part of the week, with widespread 100mm rain totals possible across much of southern and central NSW.

For Sydney and its surrounding river catchments, the heaviest rain is expected to arrive during Thursday, so it will be from this point that flooding becomes a more pressing concern for residents of this region.

- Weatherzone

© Weatherzone 2012

More breaking news

ABC News
Sydney Morning Herald
National Nine News
News Limited

Display Your Local Weather

Weather News

Storm warning for parts of southern WA extended to Perth metropolitan area

23:34 EST

An unusual weather pattern is bringing storms to parts of southern Western Australia, with residents in the Central West, Lower West, Great Southern and Central Wheatbelt districts told to brace for damaging winds and possible flash flooding.

Winter winds bring a chill to Melbourne

16:43 EST

While northern parts of the country have experienced unseasonably warm temperatures, winter is business as usual in the south.

Grantham flood inquiry: Former quarry owner says western embankment natural, not manmade

16:15 EST

The former owner of the Grantham quarry that allegedly contributed to the fatal 2011 flood has said the western embankment beside the quarry was a natural landmark and not manmade.