Prosper in a dynamic world
Search

222 mm in three hours triggers flash flooding in NSW, QLD

Parts of northeast NSW and southeast QLD were inundated by torrential rain on Thursday night, with some places collecting more than 300 mm during a barrage of thunderstorms.

A deepening low pressure system interacting with copious moisture and an unstable atmosphere produced a sustained period of heavy rain and thunderstorms over northeast NSW and southeast QLD on Thursday night into Friday morning.

The heaviest rain occurred in the hinterland region near the QLD/NSW border, where near-stationary thunderstorms delivered several hours of torrential rain that caused flash flooding.

Rain gauges at Upper Springbrook in QLD and Couchy Creek in NSW collected a whopping 222 mm in just three hours late on Thursday night. By 9am on Friday, Couchy Creek had amassed 291 mm during the past 24 hours and Upper Springbrook had collected 317 mm.

Another rain gauge near Clagiraba in QLD received 104 mm in just one hour on Thursday night.

This intense rainfall caused minor to moderate flooding in some areas and triggered numerous warnings for flooding, heavy rain and severe thunderstorms.

Heavy rain and storms will remain a threat in northeast NSW and southeast QLD on Friday morning, before rain eases into the afternoon as the low pressure system moves offshore.

This weather system has also caused flooding over other areas of NSW and southern QLD during the last two to three days. Check the latest warnings for the most up-to-date information on current and future flooding.

For more information on our products or how we can help you with your business needs, please contact us at apac.sales@dtn.com

Latest news

Satisfy your weather obsession with these news headlines from around the nation, and the world.

DTN Dangerous Thunderstorm Alerts in action with severe thunderstorms disrupting Perth industries

Severe thunderstorms impacted southwest WA and the Perth region on Sunday, December 14, 2025, triggering Dangerous Thunderstorm Alerts (DTA) by DTN for industries and businesses in the region. DTN operates Dangerous Thunderstorm Alerts (DTA) which alert businesses and industries to thunderstorms based on intensity and movement. These alerts provide advanced notice of thunderstorms moving into […]

How Australian East Coast port and maritime operations could be disrupted by tropical cyclones over the next two weeks

Port and maritime operations across Australia’s East Coast could be disrupted by increased tropical cyclone activity in the Coral Sea and southwest Pacific Ocean over the next two weeks. Meteorologists reference a large selection of Numerical Weather Prediction (NWP) models to forecast weather. A number of these NWP models are forecasting the development of tropical […]

Extreme fire danger and severe heatwave conditions spreading across SA, Victoria and NSW

Hot, dry and windy weather causing elevated fire danger and severe heatwave conditions are sweeping across southeastern Australia over the next three days, driving high energy demand and disruption to operations. Clear skies associated a large and slow-moving high pressure system have allowed hot air to build up over parts of northern, western and central […]

Heightened bushfire risk during the 2025-26 summer for WA, Victoria and NSW in latest AFAC Outlook

The Australian and New Zealand Council for fire and emergency services (AFAC) identified western and southern WA, Victoria and inland NSW as key regions that are at risk of heightened bushfire risk this summer. Parts of Australia have experienced severe soil moisture and rainfall deficiencies over the past months and years, while high fuel loads […]