The past 24 hours have seen significant lightning activity, rain, and showers, with more unsettled weather forecasted to continue.

From September 11 onward, large waves and hazardous surf conditions are expected along the east coast, adding to the active weather pattern.

Hazardous surf warnings are in effect from the mid-north coast to Bateman’s Bay, with authorities advising against water activities and suggesting boaters alter plans.

NSW SES warns residents to avoid floodwaters, creeks, and storm drains, especially in fire-affected areas where runoff can be faster, debris-laden, and prone to landslides.

By mid-morning September 11, the low-pressure system responsible for the heavy rainfall will move offshore, leading to easing conditions but with continued gusty winds and rain along the coast.

The recent weather shift is attributed to a cold front following warm northerly winds, bringing wet, windy conditions and a temperature drop of about 10°C.

Sydney could receive up to 45 mm of rain, with temperatures dropping from 29°C to 19°C, and a potential severe thunderstorm bringing damaging winds, hail, and heavy rain in the late morning.

A severe weather system is impacting New South Wales, with forecasts indicating the potential for damaging winds, heavy rainfall, flash flooding, and large hail across central and eastern regions, including densely populated areas like Sydney.

Severe weather warnings are in effect for the south coast and northern parts of the state, with expected rainfall of 50-80 mm, and isolated totals exceeding 100 mm, mainly during the afternoon and evening.

Strong winds are forecast across northern NSW ranges, along with damaging winds along the southern coast, affecting areas such as Illawarra and the Southern Tablelands.

Wind speeds could reach up to 30 km/h, shifting directions throughout the day, contributing to hazardous conditions.

Residents are urged to stay updated through the Bureau of Meteorology's warnings, website, app, and social media channels to remain informed of ongoing severe weather.

It is essential for the public to monitor official sources for the latest warnings and forecasts amid the unsettled weather.

Although no official warnings are currently issued for Sydney, residents should remain alert for the possibility of localized flash flooding, especially during Wednesday afternoon and evening.