Source: Bureau of Meteorology

For people in Northern Rivers, Mid North Coast, Metropolitan, Illawarra, South Coast and parts of Hunter, Central Tablelands, Southern Tablelands and Snowy Mountains Forecast Districts.

Issued at 10:15 pm Saturday, 8 February 2020.

DANGEROUS CONDITIONS: VERY HEAVY RAIN, HIGH WINDS, LARGE WAVES AND TIDES

A trough lying along central and northern parts of the New South Wales coast is bringing persistent rain and windy conditions to many areas. This trough is expected to gradually extend into the southern coast during Sunday and Monday before weakening.

HEAVY RAIN, which will likely cause FLASH FLOODING and RIVERINE FLOODING, is forecast for parts of the Northern Rivers, Mid North Coast, Hunter (including the Central Coast), Sydney Metropolitan, Illawarra and eastern parts of the Central Tablelands (including the Blue Mountains) districts tonight and Sunday. The threat is expected to ease in the far north later Sunday, while extending into the South Coast district.

There is potential for periods of very heavy (torrential) rainfall and life-threatening flash-flooding in the Hunter (including the Central Coast), Sydney Metropolitan, Illawarra and eastern parts of the Central Tablelands (including the Blue Mountains) districts, particularly during Sunday.

The location of the heaviest rain will be determined by the movement and strength of the coastal trough, and the development of any transient low pressure circulations embedded within it.

DAMAGING WINDS averaging up to 65 km/h, with gusts to 90 km/h, are possible along the coastal fringe between Ulladulla and Forster during Sunday and early Monday.

ABNORMALLY HIGH TIDES are forecast for Sunday morning, around which time the sea water level may exceed the highest tide of the year.

DAMAGING SURF CONDITIONS, with waves exceeding 5 metres in the surf zone, are forecast to develop during Sunday, and may produce significant beach erosion in areas exposed to the east, mainly between Forster and Jervis Bay.

A Flood Watch and a number of Flood Warnings have also been issued for this event.

Locations which may be affected include Byron Bay, Coffs Harbour, Port Macquarie, Taree, Newcastle, Gosford, Sydney, Katoomba, Lithgow, Wollongong, Nowra, Ulladulla, Eden and Moruya Heads.

Severe weather is no longer occurring in the Northern Tablelands district and the warning for this district is CANCELLED.

Rain totals from 9am to 10pm Saturday:

Cudgera Creek 214mm

Comboyne Public School 146mm

Tweed Heads 136mm

Wentworth Falls 105mm.

Rain totals for 48hrs up to 9am Saturday:

Over 300mm near Byron Bay

150 to 250mm on the Central Coast (Hunter district).

Around 100mm in the Sydney Metropolitan district

The State Emergency Service advises that people should:
* Move vehicles under cover or away from trees.
* Secure or put away loose items around your house, yard and balcony.
* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.
* Trees that have been damaged by fire are likely to be more unstable and more likely to fall.
* Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
* Don't drive, ride or walk through flood water.
* Keep clear of creeks and storm drains.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Be aware that run-off from rainfall in fire affected areas may behave differently and be more rapid. It may also contain debris such as ash, soil, trees and rocks.
* After bushfires, heavy rain and the loss of foliage can make the ground soft and heavy, leading to a greater chance of landslides.
* Stay vigilant and monitor conditions. Note that the landscape may have changed following bushfires.
* For emergency help in floods and storms, ring your local SES Unit on 132 500.