The status of a thunderstorm which caused golf-ball sized hail and 62 millimetres of rain to fall over Sydney's south west on Saturday afternoon, has been downgraded.
The Bureau of Meteorology cancelled a severe thunderstorm warning for the storm just about 8pm on Saturday night.
Rob Taggart, a meteorologist with the bureau, said the warning was downgraded after the storm "fizzled out".
"Earlier today we had storms developing over the Illawarra area and then those storms tracked over the southern suburbs of Sydney," Mr Taggart said.
"They stalled in the Avon Dam catchment area [near Wollondilly in Sydney's south west] which then received 62 millimetres of rain in 50 minutes from 5.25pm, with 60 milimetres of that rain falling in 15 minutes."
He said that about 6pm there was golf ball sized hail at Menai, 10 cent piece size hail at Engadine.
Mr Taggart said there were also 89 kilometre per hour winds at Lucas Heights.
"The worst of the storm fell over Holsworthy military base, which is uninhabited and the storm then moved to Bankstown."