By Friday the low will have moved towards the West Coast of the South Island, where it intensifies again, generating strong surf for East Coast Tasmania.

A massive cloud-band is enveloping most of the Eastern Seaboard, tied to a complex low pressure system in the Tasman, and strong high pressure system with both systems slow moving. Multiple trough lines also complicate the situation, leading to uncertain movements of the main low, and development of secondary low pressure centres, of which one is forming off the Mid North Coast today (between Coffs and Port Macquarie).

Fun today ahead of an onshore change tomorrow down South, cleaning up again on Sunday. Some better W/SW swell is due next week but with onshore winds.

Much better quality swell arrives Sun, generated by gales near the South Island aimed back towards East Coast targets.