So i had looked throught the forecasts and i assume that BOM and WZ forecasts are not predicting this rain event at all. Anyway i thinked that NE NSW and SE QLD would get worst affecting area of this low pressure system forming off our coast and there is forecastinf sites that really agreed each others!
http://www.weather.com.au/nsw/ballina
http://myforecast.com/bin/expanded_fore ... tric=false
Note: That site is still unpredictable in accurrency of thier forecasts symbols.
By LAPS MSLPS forecast charts, it shows a strong trough line off the coast which it would bring heavy rain and gales along the coastline.
By GFS forecast charts a little agreed that the low pressure will form NE NSW and SE QLD coasts by Wednesday and Thursday, as it seen to be more severe which it could bring high winds and widespread flooding in these days. I have a 50% chance to say the winds would be high and flash floodings too.
http://www.weatherzone.com.au/charts/tw ... lp&hour=-1
Looking very interesting for us anyway i hope it comes off!

And QLD BOM said:
IDQ1070002
EXTENDED OUTLOOK
The combination of the large high near New Zealand and a large high moving
slowly eastwards across the Great Australian Bight will continue to drive fresh
SE winds and a few showers onto most of the Queensland east coast until early
next week, and even further ahead along the north tropical coast.
A complex and high amplitude upper pattern will evolve over eastern Australia
over the first few days of next week, ensuring a lot of uncertainty in the
forecasts and resulting weather. Most of the uncertainty revolves around the
interaction between a strong upper trough over southeastern Australia, and a
second upper trough currently located over central eastern WA. This central
Australian trough will be the main feature to affect the weather over central
and southeastern Queensland in the coming few days, but its speed of eastward
progression and amplitude are both highly uncertain at present. However broadly
speaking, it is likely that this trough will spread cloudy conditions and some
patchy rain across most central areas and the southeast corner of the state,
with this weather most likely clearing the east coast sometime on Wednesday. The
possibility of some moderate falls with the progression of this cloudband
remains in place, although it appears less likely in the southeast corner.
These upper troughs will eventually affect the development of strong surface
pressure systems, and the most likely scenario is as follows. A surface low will
develop over the southwest Tasman Sea on Monday then move slowly eastwards with
a deep trough and possibly a secondary surface low developing off the southern
Queensland coast on Wednesday. The secondary low is likely to strengthen SE
winds and maintain showery conditions along the southern coast until at least
Friday.