QLD AND NSW - FLOOD RISK REMAINS HIGH ALONG THE COAST THIS WEEKEND.

Some of the data coming in tracking this system over the weekend suggests some areas could get 200-300mm along the QLD coast by the time we get to Tuesday next week and over 500mm is possible along some parts of the NSW Coast between Gosford and Sussex Inlet with that extending over the water catchments of Sydney.


With all things in a complex weather environment, placement is everything so remain WEATHER AWARE and prepare with the information in hand if you are in a danger zone over the coming 4-5 days.


The rainfall will not ease until about Tuesday morning along the coast, so we have a long duration rainfall event to deal with yet again.


FLASH FLOOD RISK - QLD

Pockets of heavy rainfall is expected to feature along a sharp surface trough combining with deep moisture and this is leading to widespread rain but embedded in that will be some heavier convection leading to those locally intense rainfall rates. A moderate to high risk of this unfolding throughout the interior during Friday through Saturday and along the coast from Saturday through Tuesday. Clearance of the severe weather risk dependent on the movement of the trough to the east with a secondary upper low likely to form over the inland early next week which could keep the rain in place until mid week.

FLASH FLOOD RISK - NSW

Flash flooding is a high risk at this stage, could easily lift it to very high chance over parts of the coast from Wollongong to Narooma with a trough on Friday night into Saturday and over the Northern Rivers and then extending up and down the coast this weekend into early next week. Intense rainfall leading to dangerous flash flooding is possible about the coast between Gosford and Sussex Inlet. A low risk at the moment under an upper low over the inland, particularly Central West during Saturday and Sunday with slow moving areas of rainfall, this may extend towards the Southern Tablelands and Southwest Slopes and ACT, placement of the upper low key. While it has been drier the past 2 weeks or so, be aware that it won't take much to get the runoff going again.

More can be found in the weather video this morning but this is probably the most concerning aspect of the event.