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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Oz Monitorly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
A weather bomb cyclone over NSW is defined by a central pressure drop of at least 24 hectopascals in 24 hours. The current system has plunged to 985 hPa, with sustained winds of 90 km/h and gusts to 120 km/h off the coast, according to the live ranking above.
What is the current intensity of the NSW bomb cyclone?
Pressure has fallen 28 hPa in the past 18 hours, meeting the bomb-cyclone threshold. Wind gusts have exceeded 130 km/h along the Hunter coast, with a 24-hour rainfall total of 120 mm at Seal Rocks. The system is now the most intense low-pressure cell in the Tasman Sea this season, according to the live ranking above.
Which areas are most affected?
The strongest winds and heaviest rain are concentrated between Newcastle and Port Macquarie. Coastal erosion and flooding are likely near the shoreline, while inland areas from the Mid North Coast to the Northern Rivers face 24-hour totals of 80–150 mm. The Severe Weather Warning remains active for the entire central coast.
How long will this bomb cyclone last?
The low will weaken gradually as it moves southeast over the Tasman Sea. Severe winds and heavy rain are expected to ease by late Thursday, though showers and lingering swells may persist into Friday.
Is every low-pressure system in NSW a bomb cyclone?
No. A bomb cyclone requires a rapid pressure drop of at least 24 hPa in 24 hours. Most East Coast Lows strengthen more slowly. This system met the bomb threshold within its first 18 hours of intensification.
What should I do if I live in the warning zone?
Secure loose outdoor items, avoid driving through floodwater, and stay indoors during peak gusts. Check the Weather Warning page for updates from the Bureau of Meteorology.
For broader conditions, visit the Australia weather hub. Live radar loops are available on the Weather Radar page.