Sydney and eastern NSW are likely to be battered by damaging winds and potentially severe thunderstorms on Thursday as a cold front sweeps across the state.
Jordan Notara, a senior forecaster at the Bureau of Meteorology, said the front would likely be fast-moving and steer “a line of storms” over Sydney from early afternoon into the evening.
“There may be one or two isolated pockets of instability” that could produce large hail stones, although the main threat may be from the strong winds, Mr Notara said.
Picking just where thunderstorms will develop is tricky because of the dynamic nature of the system, he said. Forecasts and warnings will be revised early on Thursday.