Northern Territory flooding from ex-Tropical Cyclone Narelle and ongoing riverine threats in March 2026
Consensus Summary
The Northern Territory is grappling with severe flooding triggered by ex-Tropical Cyclone Narelle, which has caused widespread damage across multiple river systems in March 2026. The Katherine River, which experienced its worst flooding in nearly three decades with a peak of 19.2 metres on March 7, is again at risk of reaching major flood levels, though forecasts suggest it will not surpass the previous peak. Remote communities like Daly River/Nauiyu remain submerged under prolonged major flooding, while Adelaide River and Beswick/Wugularr have also faced significant inundation. Over 200mm of rain fell on Adelaide River, leading to boil water alerts and evacuations, while the Stuart Highway has been repeatedly cut off by floodwaters. Authorities have distributed tens of thousands of sandbags, evacuated residents from affected areas, and set up field hospitals as Katherine Hospital was closed. The NT government has activated Personal Hardship Payments and requested additional support from the Australian Defence Force, highlighting the scale of the disaster. Despite some easing of conditions, residents remain on edge due to unpredictable weather and the risk of further flooding, with recovery efforts delayed by ongoing rain and rising river levels.
✓ Verified by 2+ sources
Key details reported by multiple sources:
- Ex-Tropical Cyclone Narelle dumped over 200mm of rain on Adelaide River overnight, peaking at 12.70m (Articles 3, 4, 5).
- The Katherine River peaked at 19.2 metres on March 7, marking Katherine’s worst flooding in 28 years (Articles 1, 2, 4, 6).
- The Katherine River was forecast to reach the major flood level of 17.5 metres multiple times in March 2026 (Articles 1, 2, 4, 5, 6).
- Daly River/Nauiyu remains under prolonged major flooding, with river levels expected to stay above the major flood level until at least the remainder of March (Articles 1, 3, 5, 6).
- Boil water alerts were active for Adelaide River, Numbulwar, Jilkminggan, and other remote communities due to floodwater contamination (Articles 1, 3, 4).
- More than 10,000–15,000 sandbags were distributed in Katherine to protect homes and businesses (Articles 4, 5, 6).
- Katherine Hospital was evacuated and a field hospital opened in Katherine East (Articles 1, 4, 6).
- The Stuart Highway was cut by floodwater near Adelaide River and Katherine (Articles 3, 4, 6).
- Numbulwar residents (around 200) began returning home by air in early March (Article 1).
- The Bureau of Meteorology (BOM) issued multiple flood warnings for the Katherine, Daly, Adelaide, Waterhouse, and Roper rivers (Articles 1, 2, 3, 5, 6).
- Ex-Tropical Cyclone Narelle was the seventh high-risk weather event this wet season (Articles 3, 4).
- Personal Hardship Payments were activated for flood-affected residents in Adelaide River, Numbulwar, and other areas (Articles 4, 5).
- Beswick/Wugularr experienced minor to moderate flooding but did not require evacuation (Articles 1, 3, 6).
- The BOM predicted the Katherine River would recede after Thursday morning (Articles 1, 5, 6).
- Evacuated residents from Palumpa and Numbulwar were relocated to Batchelor (Articles 1, 3, 5).
- The NT government requested additional support from the Australian Defence Force (ADF) (Articles 4, 6).
Points of Difference
Details reported by only one source:
- The Katherine River peaked just above the 17.5m major flood level on Thursday morning (March 7), 1.6m below the 19.2m peak (Article 1).
- The NT government stated some residents of Murray Downs and almost 200 Numbulwar flood evacuees began returning home by air this week (Article 1).
- Ali Curung residents received their first instalment of Immediate Relief Payments, with the remaining to be provided upon return (Article 1).
- Beswick/Wugularr residents did not evacuate but sheltered on higher ground due to flooding (Article 1).
- The Adelaide River was no longer threatening major flooding by Wednesday afternoon (Article 1).
- Royal Darwin Hospital and Palmerston Regional Hospital escaped damage and a weather-related code yellow was lifted (Article 1).
- The Katherine River was sitting at 15.81m on Tuesday afternoon, expected to reach the minor flood level of 16m later in the day (Article 2).
- Around 270 people were moved to the Katherine High School evacuation centre on Sunday, which was stood down on Monday afternoon (Article 2).
- George Pikos (pizza restaurant owner) lost over $20,000 in stock and equipment and called for government financial support for small businesses (Article 2).
- Jo Hersey (Member for Katherine) noted low-lying pockets of Katherine experienced water over roads due to rising creeks (Article 2).
- The field hospital in Katherine was expected to remain functional until the risk of further flooding passed (Article 2).
- Birdie Creek river levels exceeded the early March 2026 peak (Article 3).
- Moderate riverine flooding was occurring at Nitmiluk Centre, with potential for major flooding (Article 3).
- The Stuart Highway had multiple sections damaged by flooding this month (Article 3).
- Fleur Parry (Djilpin Arts) spent the weekend sandbagging her Katherine office and expressed frustration over delayed repatriation (Article 3).
- Dheran Young (Labor MP for Daly) criticized the NT government for changing the timeline for evacuating residents from Batchelor (Article 3).
- Children and Families Minister Robyn Cahill called Dheran Young’s comments disrespectful to staff (Article 3).
- The Katherine River was predicted to exceed the minor flood level of 16m on Tuesday morning (Article 4).
- Tara and Sarah Whitchelo (Katherine residents) stayed in a hotel with their baby and pets due to flood concerns (Article 4).
- Marleen Lee and Christello Birdum stocked up on supplies in Katherine after earlier flood-related road closures (Article 4).
- Dawn Keighran (Borroloola resident) described the wet season as unlike anything he had experienced before (Article 4).
- The National Critical Care and Trauma Response Centre set up a field hospital in Katherine East (Article 4).
- Four Adelaide River residents self-evacuated due to floodwater and power outages (Article 5).
- The BOM predicted the Katherine River would peak above the minor flood level but below the major flood level overnight (Article 5).
- NT Police Commissioner Martin Dole urged motorists to exercise extreme caution and avoid floodwater (Article 5).
- The emergency declaration remains in effect for the Big Rivers region (Article 5).
- Andrew Warton (NT Fire and Emergency Services Commissioner) warned of crocodile hazards in floodwaters (Article 5).
- Emergency service volunteers from South Australia and the ACT arrived to support Katherine’s flood response (Article 6).
- The BOM warned that further showers and thunderstorms could trigger renewed river level rises (Article 6).
- Secure NT warned residents may become isolated if the Katherine River reaches major flood levels (Article 6).
- Emergency shelters in Katherine were closed but the field hospital remained operational (Article 6).
- The BOM’s Todd Smith stated river levels at Katherine Bridge would stay elevated until Thursday (Article 6).
Contradictions
Conflicting information between sources:
- Article 1 states the Katherine River peaked just above 17.5m on Thursday morning (March 7), while Article 2 states it peaked at 19.2m on March 7 (consensus fact confirms 19.2m).
- Article 2 reports the Katherine River was sitting at 15.81m on Tuesday afternoon (March 11), but Article 6 states it was continuing to rise at Katherine Bridge that morning (no specific level given).
- Article 1 says the Adelaide River was no longer threatening major flooding by Wednesday afternoon (March 12), while Article 3 states Adelaide River reached the major flood level on Monday morning (March 10).
- Article 3 claims Birdie Creek river levels exceeded the early March 2026 peak, but no other source confirms this specific detail.
- Article 2 mentions the Katherine River was expected to reach the major flood level of 17.5m by Wednesday afternoon (March 12), while Article 5 states it would peak above the minor flood level but below the major flood level overnight (March 11-12).
Source Articles
Ex-TC Narelle leaves NT with minimal damage but emergency 'not over yet'
Ex-Tropical Cyclone Narelle has left the Northern Territory after dumping more than 200mm of rain on the Top End overnight, but authorities have warned the emergency is "not over"....
BOM says more rain causing 'significant river level rises' in soaked NT
BOM is warning major riverine flooding could follow the "moderate to heavy rainfall" dumped across the NT by ex-Tropical Cyclone Narelle....
Narelle leaves Katherine anxiously awaiting second flood this month
As ex-Cyclone Narelle moves to Western Australia, the Northern Territory town of Katherine prepares for its second flood event this month....
Katherine braces for possibility of second major flood this month
Residents in Katherine are bracing for the possibility of major riverine flooding today, which would mark the second significant weather event to rock the town in a month....
Katherine escapes more flood damage as remote evacuees start heading home
Major flooding has eased along the Katherine River and the town has been spared further damage, while surrounding remote communities are starting to recover....
Weary Katherine residents on edge ahead of another possible major flood
Exhausted residents in the Northern Territory town of Katherine are once again on alert as they prepare for further possible major flooding on Wednesday....