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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Reef Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
If you are on the east coast, expect heavy rain, damaging winds and dangerous surf from this weather bomb starting today. Check the live forecast above and avoid non-essential travel until conditions ease. This is a rapid intensification of a low-pressure system, often called an east coast low.
What is a weather bomb and how does it affect the east coast?
A weather bomb, or bomb cyclone, forms when a low-pressure system drops at least 24 hectopascals in 24 hours. Over the east coast, this pulls in moisture from the Coral Sea and Tasman Sea, causing torrential rain, gale-force winds and huge swells. The greatest risk is from Sydney north to Brisbane, though the whole seaboard feels the impact.
Flooding is the primary concern, especially along the coast and ranges. The live forecast above shows totals that can exceed 200 millimetres in 24 hours. Winds above 90 kilometres per hour are possible, bringing down trees and power lines. Surf heights of 5 metres or more make beaches extremely dangerous.
How should you prepare during the event?
Secure loose outdoor items like trampolines and bins. Move vehicles to higher ground if you are in a flood-prone area. Do not drive through floodwater—it takes only 15 centimetres to sweep a car away. Stay 50 metres clear of surf zones and report any powerline damage to your local energy provider.
Monitor the live forecast above and warnings from the Bureau of Meteorology. Many local councils offer flood alerts; sign up for those if you haven’t already. Plan for possible power outages by charging devices now.
How long does an east coast weather bomb last?
Most weather bombs weaken within 24 to 48 hours as the low moves out to sea. However, a slow-moving system can stall near the coast, extending heavy rain and wind for a third day.
Is this the same as a tropical cyclone?
No. A weather bomb is a mid-latitude low that deepens explosively. It is not a tropical cyclone, though it can produce similar storm-force winds and rain. The Bureau treats them as a separate, severe-weather event.
Should I cancel my travel plans?
If you were planning to drive along the coast or fly out of a major east coast airport today, check with your airline and allow extra time. Road closures are likely; it is safer to postpone non-essential travel until the system clears.
For broader conditions, see our Australia weather hub. For specific city impacts, check Sydney Weather or Brisbane Weather. Always follow current Severe Weather Warning advice.