Severe Weather Warning: Heavy Rainfall and Flash Flooding Forecast for Simpson District, NT

Alert Details

The Australian Government Bureau of Meteorology (BOM) has issued a Severe Weather Warning (IDD21037) for heavy rainfall. The alert was issued at 10:31 am ACST on Tuesday, 24 February 2026, for residents in the Simpson district of the Northern Territory.

Affected Areas

The primary area of concern is the Simpson district, specifically locations east of Finke. The Bureau noted that severe weather is no longer occurring in the Barkly and Tanami districts, and the previous warnings for those areas have been cancelled.

What You Should Do

The Northern Territory Emergency Service (NTES) advises residents to take the following precautions:

• Secure loose outside objects and seek shelter as conditions deteriorate.
• If driving in heavy rain, pull over and park with hazard lights on until visibility improves.
• Do not drive into water of unknown depth or current.
• Use pillowcases or shopping bags filled with sand to create sandbags for protecting doorways.
• Stay away from flooded drains, rivers, and waterways.
• Ensure the safety of pets and livestock.
• Prepare for potential power outages with an emergency kit containing a radio, torch, and first aid supplies.
• For emergency assistance, contact the NTES at 132 500.

Expected Conditions

A slow-moving tropical low situated over the southeast is bringing rich tropical moisture to the region. Heavy rainfall is forecast, which may lead to flash flooding. Expected rainfall totals include:

• Six-hour totals: 25 mm to 75 mm.
• 24-hour totals: 50 mm to 100 mm.

These conditions pose a specific threat to cattle and other livestock in the region. Separate flood watches or warnings may also be in effect for the area.

Timeline

The heavy rainfall is expected to continue through Tuesday before gradually easing throughout Wednesday. The next update from the Bureau of Meteorology is scheduled to be issued by 5:00 pm ACST Tuesday.