Severe Thunderstorm Warning Issued for Sydney: Heavy Rainfall and Flash Flooding Expected
This alert is no longer in effect.
BOM issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this BoM weather warning directly from BOM's official public data feed. See our methodology for full source attribution and refresh cadence.
The Bureau of Meteorology has issued a high-priority severe thunderstorm warning for southern Sydney, with heavy rain and flash flooding threats moving southeast through the region.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Sydney, New South Wales
- Issued
- April 6, 2026
- Issuing authority
- BOM
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Sydney, New South Wales.
Alert Details
The Australian Government Bureau of Meteorology (BOM) has issued a severe thunderstorm warning (IDN21035) for heavy rainfall. This is a top-priority alert for immediate broadcast, targeting residents in parts of the Sydney area.
Affected Areas
The warning specifically covers southern Sydney. At 5:35 pm, a severe thunderstorm was detected near Liverpool and Bankstown. The storm is moving toward the southeast and is forecast to affect the following locations:
- Sutherland, Sydney Airport, and Engadine: by 6:05 pm
- Bundeena, Maroubra, and Randwick: by 6:35 pm
What You Should Do
The State Emergency Service (SES) advises residents to take the following precautions:
- Keep clear of creeks and storm drains.
- Do not walk, ride your bike, or drive through flood water.
- If you are trapped by flash flooding, seek refuge in the highest available place and call 000 if you require rescue.
- Stay indoors and away from windows; ensure children and pets remain inside.
- For emergency help in floods and storms, contact the SES at 132 500.
Expected Conditions
Severe thunderstorms are likely to produce heavy rainfall that may lead to flash flooding. The storm system is currently active and moving through the metropolitan region.
Timeline
The alert was issued at 5:33 pm on Sunday, 22 February 2026. The storm was tracked near Liverpool at 5:35 pm, with impacts expected to continue through at least 6:35 pm. The next formal warning update is scheduled to be issued by 6:35 pm.
Original source: BOM Official Notice ↗
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