I don't know what it meant unfortunately but I knew it would be smart.
Yes and yes @Rays74
Warm fronts have sometimes passed through SEQ but they're not very common. The thing to remember here is that the MSLP charts you see on the Bureau's website have been traditionally been done by the Bureau's National Meteorological and Oceanographic Centre located at head office in Melbourne. And they've always been notorious in weather circles for their reluctance to draw in fronts, especially warm fronts, even when there's clear evidence of their presence (horizontal and vertical temp gradients, obs, characteristic cloud patterns, etc). It's been a pet hate of mine and some others I know. In fact, you could pretty much safely ignore them as far as identifying whether there's a warm front somewhere or not.
You'll often see warm fronts and occluded fronts marked on charts from many other national weather agencies which cover this area such as the NZ Met Service (although they do tend to overdo it a bit), NOAA's central Pacific branch, etc.
In general, large warm fronts tend to be more common during northern hemisphere winters, especially in the US where it's common to get a warm moist airmass coming up from the Gulf and overrunning a mass of very cold air that's been sitting over the interior. In the southern hemisphere, they're a bit less common but they tend to affect the Southern Ocean more than Australia... although on occasion, they can also affect TAS and VIC.
When warm fronts occur here in SEQ (which are hardly ever marked on the standard MSLP charts), they tend to be on a smaller scale and typically occur when a front/coastal change that's just passed through lags back onto the coast and starts curling around as a localised area of low pressure starts to form on its tip. This can also be in conjunction with an east coast low or a subtropical low that manages to wander just inland of the coast. You'll then sometimes see a frontal structure start to develop from it with a small warm front structure extending out to its east. This front then usually pushes south along the coast as the warm moist air being drawn down the eastern flank of the low runs into the cooler air to the south. When this happens, it's usually only the coastal fringe that gets affected by the front. It looks quite obvious on satpics, obs, and model maps, and as the warm front pushes south, you'll see winds suddenly shift from cool E or SE'lies around to warmer N or NE'ies and a sudden temp rise, sometimes even against the diurnal trend.
The first bunch of images above are some examples of warm fronts that have occurred in the Tasman Sea and the Southern Ocean using EC winds, temps and precip.
The last animation above is a less common example of one a few years ago that occurred in SEQ. This one involved a more localised disturbance near the coast which then extended a warm front out to its east - this subsequently pushed down the coast with an accompanying temp rise and wind shift in the obs at the locations it passed over.