Weak coastal troughiness will contract to the North Coast on Thursday though lingering onshore SE winds are a risk north from Sydney.
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For now, frontal activity is being allowed to track in a more favourable manner for S swell production so we’ll seea week of small/moderate S swell pulses leading into the Easter weekend.
For now, frontal activity is being allowed to track in a more favourable manner for S swell production so we’ll see a week of small/moderate S swell pulses leading into the Easter weekend.
S swells from frontal activity now look a notch more active next week as the W-E progression of the next high cell (and subsequently fronts) slows and allows more intrusion into the lower Tasman.
The NZ high has generated a useful fetch of tradewinds in the eastern swell window, which has maintained E’ly swells in the sub-tropics, E/NE in temperate regions. That trade fetch breaks down in the short term before rebuilding again at more Northern latitudes. We’ll see some frontal activity over the weekend before another strong, blocking high sets up a ridge next week.
We’ll see this pattern disrupted mid-week by an aggressive trough which brings S winds and swell before the next high slowly resets the trade pattern, this time further north in the Coral Sea.
Today’s onshore pattern will contract to the North Coast on Saturday, and Sunday looks very interesting with a new long period S/SE groundswell.
We’ve still got a broad trade wind flow in the Coral Sea, extending out into the South Pacific and anchored head and tail by low pressure along the monsoon trough. That’s producing heavy swells in the sub-tropics (full blown Point surf equivalent to cyclone swells) with a fair amount filtering down to temperate NSW.
Lots of swell to look forward to this week, and winds should remain light under a weak local synoptic pattern.
There was a nice, lingering tail to the S swell event but we’re now entrenched in a classic late Summer pattern with strong high pressure moving into the Tasman, setting up a downstream blocking pattern and very healthy tradewind fetch through the Coral Sea, extending E into the South Pacific and south into the Northern Tasman.