Bureau of Meteorology

organization

Last mentioned: Mar 21, 2026

Timeline

  1. Peak Inland Flooding

    Projected peak for inland river systems, likely extending logistics disruptions for another 72 hours.

  2. Peak Impact Forecast

    System expected to bring maximum rainfall and wind gusts to inland NSW.

  3. Damage Assessment

    Anticipated window for retailers to begin assessing physical store and warehouse damage.

  4. Stay Inside Order

    Authorities issue 'do not venture outside' warnings, halting all retail logistics.

  5. Widespread Warnings

    Emergency services issue 'do not venture outside' alerts across multiple states.

  6. Cyclone Landfall

    Cyclone Narelle hits; regional news outlets issue emergency alerts.

  7. Initial Landfall

    Cyclone Narelle impacts the coast with high-intensity winds.

  8. The Double-Hit

    Second wave of intense rainfall strikes, causing immediate flooding in already saturated communities.

  9. Downgrade

    The system is downgraded to a tropical low as it moves inland toward the Barkly region.

  10. Pre-Storm Stockpiling

    Consumers surge to physical and digital stores for emergency supplies.

  11. Cyclone Landfall

    Slow-moving cyclone enters the region, significantly decelerating over the Great Dividing Range.

  12. Landfall and Stalling

    Megan makes landfall and slows to <10km/h, dumping extreme rainfall on saturated ground.

  13. Intensification

    The system reaches Category 3 status as it approaches the southwestern Gulf coast.

  14. Whiplash Events

    Widespread reports of rapid transitions to flooding in Ulladulla, Tenterfield, and Maitland.

  15. Storm Formation

    Tropical Cyclone Megan forms in the Gulf of Carpentaria during a heavy monsoon.

  16. Initial Saturation

    First major rainfall event leaves regional NSW ground sodden and river levels elevated.

  17. Atmospheric Loading

    Significant buildup of atmospheric moisture observed following prolonged high-evaporation period.

  18. Record Heatwaves

    Extreme temperatures recorded across regional New South Wales, leading to severe soil moisture depletion.

Stories mentioning Bureau of Meteorology 5

logistics Bearish

Cyclone Narelle Disrupts Australian Retail as Landfall Triggers Store Closures

Severe Cyclone Narelle has triggered emergency 'do not venture outside' warnings across multiple Australian regions, forcing a widespread shutdown of physical retail operations. The storm is expected to cause significant disruptions to national supply chains and last-mile delivery networks, shifting consumer behavior toward digital stockpiling and essential services.

10 sources
extreme-weather Bearish

Slow-Moving Cyclone Megan Delivers Double Blow to Saturated NT Communities

A slow-moving Category 3 tropical cyclone has stalled over the Northern Territory’s Gulf country, dumping record rainfall on communities already reeling from a record-breaking monsoon season. The disaster has isolated remote towns like Borroloola and forced the suspension of major mining operations, highlighting the growing risk of 'stalling' storms.

6 sources
disruptions Bearish

Cyclone-Induced Flooding Cripples NSW Logistics as 'Double-Hit' Storm Lingers

A slow-moving cyclone has delivered a devastating 'double-hit' to regional New South Wales, overwhelming already saturated ground and severing critical transport links. The persistent weather system is causing significant delays in freight movement, particularly affecting agricultural exports and regional distribution networks.

6 sources