Severe Thunderstorm Warning Issued for Sydney, Illawarra, and Multiple NSW Districts
This alert is no longer in effect.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 parts of New South Wales, warning of heavy rainfall, large hail, and damaging winds.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- 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 New South Wales.
Alert Details
The Australian Government Bureau of Meteorology (BOM) has issued a severe thunderstorm warning (IDN21033) for parts of New South Wales. The alert is classified as a major warning for heavy rainfall, large hailstones, and damaging winds.
Affected Areas
The warning covers several forecast districts, including:
- Sydney Metropolitan
- Illawarra
- Central Tablelands
- Hunter
- Mid North Coast
- Northern Tablelands
Specific locations that may be impacted include Campbelltown, Nowendoc, Bulahdelah, Barrington Tops, Dungog, and Yarrowitch.
What You Should Do
The State Emergency Service (SES) advises residents to take the following precautions:
- Park vehicles under secure cover and away from trees, powerlines, and drains.
- Secure or store loose items around houses, yards, and balconies.
- Maintain a distance of at least 8 meters from fallen power lines or potentially energized objects.
- Stay clear of creeks and storm drains.
- Do not walk, ride, or drive through flood water.
- If trapped by flash flooding, seek refuge in the highest available place and call 000 for rescue.
- Stay indoors and away from windows; keep pets and children inside.
- For emergency assistance in floods and storms, contact the SES at 132 500.
Expected Conditions
Slow-moving thunderstorms are developing along the eastern slopes of the Great Dividing Range due to a moist, unstable atmosphere. These storms are likely to produce heavy rainfall, which may lead to flash flooding. In the Metropolitan, Illawarra, and Central Tablelands districts, the storms may also bring large hailstones and damaging winds.
Timeline
The warning was issued at 2:38 pm on Saturday, 21 February 2026. The situation is expected to persist over the next several hours. A subsequent update is scheduled to be issued by 5:40 pm. If severe thunderstorms develop in Sydney, Newcastle, or Wollongong, a more detailed warning will be issued.
Original source: BOM Official Notice ↗
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