Severe Thunderstorm Warning for Heavy Rainfall Issued for Sydney and Wollondilly/Wingecarribee
This alert is no longer in effect.
BOM issued it on April 4, 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 warning for slow-moving severe thunderstorms likely to cause heavy rainfall and flash flooding in parts of Sydney and surrounding areas.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Sydney and Wollondilly/Wingecarribee, NSW
- Issued
- April 4, 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 and Wollondilly/Wingecarribee, NSW.
Alert Details
The Australian Government Bureau of Meteorology (BOM) has issued a Detailed Severe Thunderstorm Warning (IDN21035) for heavy rainfall. The alert is classified as a top priority for immediate broadcast and was issued at 1:31 pm Thursday, 19 March 2026.
Affected Areas
The warning applies to people in parts of the Sydney and Wollondilly/Wingecarribee areas. At 1:30 pm, severe thunderstorms were detected near Wedderburn and Regents Park. These storms are forecast to affect Auburn, Menangle, and Guildford by 2:00 pm.
Expected Conditions
The Bureau warns that these thunderstorms are slow-moving and are likely to produce heavy rainfall that may lead to flash flooding. Significant rainfall has already been observed, with 46 mm recorded at Bankstown Airport in the one-hour period leading up to 1:15 pm.
Timeline
The warning was issued at 1:31 pm on March 19, 2026. The next update from the Bureau of Meteorology is scheduled to be issued by 2:35 pm. A more general severe thunderstorm warning is also currently active for parts of the Metropolitan and Illawarra districts.
What You Should Do
The State Emergency Service (SES) advises residents in the affected areas 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 indoors as well.
- For emergency assistance during floods and storms, contact the SES at 132 500.
Original source: BOM Official Notice ↗
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