I will try me best
Ok here we have the usual graph for perth with the wave forecast in the background.
On the left there is a scale - wave height in metres - that signifies the size of swell
The blue parts show how big the swell is going to be - so on tuesday the swell is dropping then slowly picking up again - peaking on thursday then dropping off again afterwards
In order to determine why this is we go to the graphs.....
The graphs show a front coming through plus (out of pic) a deep low tracking along - that is a storm -these things combined can create waves for us.
My take is that any low pressure system to the south or west of our coast line if deep enough will create swell. The bigger and deeper the low the better the swell. Dependant on where the low pressure is situated and moving to is dependant alon the coast as to which direction the swell is travelling - often standing on the beach there are lumps on the horizon heading north and swell on the beach is nil.
Now the swell immedietly can be found here (worth highlighting on this background)
This shows you the swell height as it is now and the past few days at various buoys around the coast so you can see the general trend - which is on the way down at the mo
Very handy
