Weak high pressure sits in the Tasman now, directing freshening NE winds across the Central/Southern NSW Coast as a trough and front approach from the W and SW. The trough will bring a robust S’ly change to the NSW Coast through Thurs, extending up into the sub-tropics during Fri. S’ly winds and swell quickly build in the wake of the trough.

We’ve got a weak, blocking pattern with high pressure (1025 hPa) right smack bang in the middle of the Tasman directing an onshore flow along the Eastern Seaboard. NE across Temperate NSW and SE-E in the sub-tropics. Warm SST (sea surface temperatures) are helping morning land breeze development so conditions should be relatively clean through the early sessions.

We currently have a weak, troughy pattern in the Tasman Sea, with continuing instability across the tropics in the wake of an active, monsoon pattern. High pressure is expected to drift south of Tasmania this week, with a typical Summer NE wind pattern becoming established. Remnants of low pressure near New Zealand are offering up minor fetches out of Cook Strait (currently) and near the South Island which will supply a few small pulses of swell this week. 

After a very slow moving synoptic pattern in the Xmas-New Years week we are finally seeing some movement as the tropical low which hived off the monsoon trough now journeys into the Southern Tasman generating strong E swells, where it will merge with a surface trough currently working it’s way north along the NSW Coast.