SHEEP graziers are warned that cold temperatures, showers and westerly winds are expected during Monday and Tuesday.
The Bureau of Meteorology has warned areas likely to be affected include the Central Tablelands, Southern Tablelands, South West Slopes, Riverina, Snowy Mountains and Australian Capital Territory forecast districts and parts of the Central West Slopes and Plains forecast district.
There is a risk of losses of lambs and sheep exposed to these conditions, the BoM said.
Meanwhile significant areas of NSW will also experience gusty and potentially damaging wind conditions.
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These winds have the potential to bring down trees and powerlines, and the NSW State Emergency Service is urging people to clean-up loose items around their properties, take care if involved in outdoor activities.
Bureau of Meteorology's Jackson Browne said the cool change will bring a significant drop in temperatures of up to 10 degrees Celsius in many places.
"Snow is likely to fall along the ranges through to the Queensland border, with snow fall on the southern ranges above 900 metres by tonight, and above 600 metres by Tuesday morning," he said.
Snow is also likely on the Central Tablelands above 1000 metres tonight, above 700 metres on Tuesday, and may also reach the Northern Tablelands and higher parts of the North west Slopes and Plains above 1000 metres on Tuesday.
Snowfall should clear across the state early on Wednesday morning, he said.
Snow and ice may lead to dangerous conditions on the roads, and people are being urged to drive to conditions.
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