A severe weather warning for damaging winds and blizzards has been issued for parts of NSW.
The Bureau of Meteorology says vigorous westerly winds, associated with a low pressure system over the southern Tasman Sea, are moving over south eastern and central eastern parts of NSW today.
Damaging winds, averaging 60 to 70 km/h with peak gusts in excess of 90 km/h are likely over south eastern and central eastern parts of NSW today, including the Sydney Metropolitan Area, Blue Mountains, Illawarra, South Coast and southern ranges.
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The bureau says blizzards are likely over the Alps above 1400 metres, with the National Parks Service of NSW recommending that people consider postponing back country travel until conditions improve.
Locations which may be affected include Sydney, Wollongong, Nowra, Batemans Bay, Goulburn, Katoomba and Cooma.
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.
* Report fallen power lines to either Ausgrid on 131 388, or Endeavour Energy on 131 003 or Essential Energy on 132 080, as shown on your power bill.
* For emergency help in floods and storms, ring your local SES Unit on 132 500.