Source: Bureau of Meteorology

For people in Central Tablelands, South West Slopes and parts of Hunter, Illawarra, Southern Tablelands, North West Slopes and Plains, Central West Slopes and Plains, Upper Western, Snowy Mountains and Australian Capital Territory Forecast Districts.

Issued at 7:21 pm Friday, 11 January 2019.

Severe thunderstorms are likely to produce large hailstones, heavy rainfall that may lead to flash flooding and damaging winds over the next several hours in the Central Tablelands, South West Slopes and parts of the Hunter, Illawarra, Southern Tablelands, Central West Slopes and Plains, Snowy Mountains and Australian Capital Territory districts. Locations which may be affected include Scone, Bowral, Orange, Mudgee, Bathurst, Katoomba, Goulburn, Yass and Tumbarumba.

Severe thunderstorms are likely to produce damaging winds over the next several hours in parts of the Central West Slopes and Plains and Upper Western districts. Locations which may be affected include Walgett, Coonamble, Nyngan, Bourke, Lightning Ridge, Brewarrina.

Severe thunderstorms are no longer occurring in the South Coast and Riverina districts and the warning for these districts is CANCELLED.

Goulburn Airport recorded 26mm in 30 minutes from 1:15 to 1:45pm.

Mt Gray (near Goulburn) recorded 38mm in 30 minutes from 1:25pm to 1:15pm.

Hail up to 4.5cm diameter was reported at Mt Victoria (Blue Mountains) about 1:50pm.

A gust of 107 km/h was recorded at Cobar Airport at 1:57pm.

A gust of 108 km/h was recorded at Cowra Airport at 4:14pm.

Hail of 4 cm diameter was reported at Yass in the early afternoon.

Hail up to golf ball size was reported at Holder and Duffy (in Canberra) around 3pm.

25mm of rain fell in 20 minutes at Weston Creek (Canberra) around 3pm.

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 on 131 388, or Endeavour Energy on 131 003 or Essential Energy on 132 080, 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.