The Bureau of Meteorology have issued a severe weather warning for parts of the Central West Slopes and Plains, including the Weddin area.
The warning released just before 11am on Monday warned of damaging winds, large hailstones and heavy rainfall.
"A low pressure system over inland New South Wales is drawing humid air across eastern parts of the state causing widespread thunderstorm activity," a Bureau of Meteorology spokesperson said.
"This system is expected to gradually move to the Tasman Sea later tonight."
According to the Bureau the severe thunderstorms are likely to produce damaging winds, large hailstones and heavy rainfall that may lead to flash flooding in the warning area over the next several hours.
Locations which may be affected include Batemans Bay, Canberra, Yass, Parkes, Wagga Wagga and Albury.
Severe thunderstorms are no longer occurring in the Lower Western district and the warning for this district is CANCELLED.
Yanco AWS recorded 25mm of rainfall in the 30 minutes to 8:30am.
The State Emergency Service advises that people should:
* Move your car 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 (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Unplug computers and appliances.
* Avoid using the phone during the storm.
* Stay indoors away from windows, and keep children and pets indoors as well.
* For emergency help in floods and storms, ring the SES (NSW and ACT) on 132 500.