Severe Thunderstorm Warning for Heavy Rainfall in Blue Mountains and Wollondilly Regions
This alert is no longer in effect.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 severe thunderstorm warning for parts of the Blue Mountains and Wollondilly areas, warning of heavy rainfall and potential flash flooding.
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 "Detailed Severe Thunderstorm Warning for HEAVY RAINFALL" for parts of the Blue Mountains/Hawkesbury and Wollondilly/Wingecarribee areas. The warning (IDN21035) was issued at 12:52 pm on Saturday, March 7, 2026, as severe thunderstorms move into the region.
Affected Areas
The warning specifically covers parts of the Blue Mountains/Hawkesbury and Wollondilly/Wingecarribee districts. Severe thunderstorms were detected near the Oberon and Burraga districts (southwest of Oberon) and are moving east to southeast. Forecasted impact areas include:
- West of Lake Burragorang (by 1:20 pm)
- Lake Burragorang and the Burragorang State Recreation Area (by 1:50 pm)
- Blue Mountains southwest of Katoomba (by 1:50 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, or drive through flood water.
- If trapped by flash flooding, seek refuge in the highest available place and call 000 for rescue.
- Stay indoors away from windows; keep children and pets inside.
- For emergency help in floods and storms, contact the SES at 132 500.
Expected Conditions
The primary hazard is heavy rainfall that may lead to flash flooding. Recent observations include 33.0 mm of rainfall recorded at the Orange Enviromon Base Station within one hour (ending at 12:35 pm).
Timeline
The warning was issued at 12:52 pm on March 7, 2026. The thunderstorms are currently moving through the region, with specific impacts expected at Lake Burragorang and Katoomba by 1:50 pm. The next update from the Bureau of Meteorology is scheduled for 1:55 pm.
Original source: BOM Official Notice ↗
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