Forecast

Australian Government Bureau of Meteorology
Northern Territory

Marine Wind Warning Summary for the Northern Territory

Issued at 05:08 PM CST on Sunday 22 March 2026
for the period until midnight CST Monday 23 March 2026

Wind Warnings for Sunday 22 March
Strong Wind Warning for the following areas:
Van Diemen Gulf, Arafura Coast and Roper Groote Coast
Cancellation for the following areas:
Gove Peninsula Coast

Wind Warnings for Monday 23 March
Gale Warning for the following areas:
Beagle Bonaparte Coast
Strong Wind Warning for the following areas:
Van Diemen Gulf and Darwin Harbour

The next marine wind warning summary will be issued by 8:30 pm CST Sunday.
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Check the latest Coastal Waters Forecast or Local
Waters Forecast at http://www.bom.gov.au/nt/forecasts/map.shtml for information on wind,
wave and weather conditions for these coastal zones.
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Australian Government Bureau of Meteorology
Northern Territory

TOP PRIORITY FOR IMMEDIATE BROADCAST

Severe Weather Warning
for Heavy, Locally Intense Rainfall And Damaging Winds

for Daly and parts of Arnhem, Carpentaria and Gregory districts.

Issued at 5:01 pm Sunday, 22 March 2026.

LOCALLY INTENSE RAINFALL AND DAMAGING WIND GUSTS OVER THE CENTRAL AND WESTERN TOP END CONTINUING TONIGHT AND INTO MONDAY.

Weather Situation
Ex-Tropical Cyclone Narelle is currently located over the western Arnhem district after crossing the eastern Top End coast earlier this morning. The system is expected to continue moving steadily west-southwestwards tonight and Monday, while remaining as a deep tropical low.
HEAVY, LOCALLY INTENSE RAINFALL and DAMAGING WINDS for the following areas:
Daly, Arnhem, Carpentaria and Gregory
HEAVY RAINFALL which may lead to FLASH FLOODING is forecast for the central Top End, including Katherine, this afternoon, before shifting more into the Daly district this evening. These conditions may also develop about the DARWIN area from late this evening into Monday morning. Six-hourly rainfall totals between 80 and 120 mm are likely. 24-hourly rainfall totals between 180 to 230 mm are likely.
Locally INTENSE RAINFALL which may lead to DANGEROUS AND LIFE-THREATENING FLASH FLOODING is also possible north of Katherine this afternoon with six-hourly rainfall totals up to 180 mm. Isolated 24-hourly rainfall totals of 250 to 300 mm are possible.
Localised DAMAGING WIND GUSTS with peak gusts of around 100 km/h are possible in the warning area, more likely this afternoon and evening to the south of the system, and may develop through the DARWIN area from late this evening into Monday morning.
Further showers and thunderstorms are possible over the remainder of the Top End as the system contracts west.
Flood Watches and Warnings are current for the area. Please refer to https://www.bom.gov.au/weather-and-climate/warnings-and-alerts/ for more information.
Locations which may be affected include Darwin, Katherine, Palmerston, Jabiru, Wadeye and Nauiyu.
121 mm was recorded at Central Arnhem Plateau in the 6 hours to 3:30 pm.

The Northern Territory Emergency Service advises that people should:
* secure loose outside objects and seek shelter when conditions deteriorate
* pull over if it is raining heavily and you cannot see, park with your hazard lights on until the rain clears
* avoid driving into water of unknown depth and current
* create your own sandbags if there is flooding, by using pillow cases or shopping bags filled with sand and place them around doorways to protect your home
* stay away from flooded drains, rivers, streams and waterways
* ensure pets and animals are safe
* be prepared in case of power outages, have an emergency kit with a radio, torch, spare batteries and first aid kit
* for emergency help in floods, storms and cyclones, contact the NTES on 132 500. For more safety tips visit www.securent.nt.gov.au

The next Severe Weather Warning will be issued by 11:00 pm ACST Sunday.
Check https://www.bom.gov.au/weather-and-climate/warnings-and-alerts. Warnings are also available through TV and Radio broadcasts or call 1300 659 210. The Bureau and Northern Territory Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology
Northern Territory

TOP PRIORITY FOR IMMEDIATE BROADCAST

Severe Weather Warning
for Heavy, Locally Intense Rainfall And Damaging Winds

for Daly and parts of Arnhem, Carpentaria and Gregory districts.

Issued at 5:01 pm Sunday, 22 March 2026.

LOCALLY INTENSE RAINFALL AND DAMAGING WIND GUSTS OVER THE CENTRAL AND WESTERN TOP END CONTINUING TONIGHT AND INTO MONDAY.

Weather Situation
Ex-Tropical Cyclone Narelle is currently located over the western Arnhem district after crossing the eastern Top End coast earlier this morning. The system is expected to continue moving steadily west-southwestwards tonight and Monday, while remaining as a deep tropical low.
HEAVY, LOCALLY INTENSE RAINFALL and DAMAGING WINDS for the following areas:
Daly, Arnhem, Carpentaria and Gregory
HEAVY RAINFALL which may lead to FLASH FLOODING is forecast for the central Top End, including Katherine, this afternoon, before shifting more into the Daly district this evening. These conditions may also develop about the DARWIN area from late this evening into Monday morning. Six-hourly rainfall totals between 80 and 120 mm are likely. 24-hourly rainfall totals between 180 to 230 mm are likely.
Locally INTENSE RAINFALL which may lead to DANGEROUS AND LIFE-THREATENING FLASH FLOODING is also possible north of Katherine this afternoon with six-hourly rainfall totals up to 180 mm. Isolated 24-hourly rainfall totals of 250 to 300 mm are possible.
Localised DAMAGING WIND GUSTS with peak gusts of around 100 km/h are possible in the warning area, more likely this afternoon and evening to the south of the system, and may develop through the DARWIN area from late this evening into Monday morning.
Further showers and thunderstorms are possible over the remainder of the Top End as the system contracts west.
Flood Watches and Warnings are current for the area. Please refer to https://www.bom.gov.au/weather-and-climate/warnings-and-alerts/ for more information.
Locations which may be affected include Darwin, Katherine, Palmerston, Jabiru, Wadeye and Nauiyu.
121 mm was recorded at Central Arnhem Plateau in the 6 hours to 3:30 pm.

The Northern Territory Emergency Service advises that people should:
* secure loose outside objects and seek shelter when conditions deteriorate
* pull over if it is raining heavily and you cannot see, park with your hazard lights on until the rain clears
* avoid driving into water of unknown depth and current
* create your own sandbags if there is flooding, by using pillow cases or shopping bags filled with sand and place them around doorways to protect your home
* stay away from flooded drains, rivers, streams and waterways
* ensure pets and animals are safe
* be prepared in case of power outages, have an emergency kit with a radio, torch, spare batteries and first aid kit
* for emergency help in floods, storms and cyclones, contact the NTES on 132 500. For more safety tips visit www.securent.nt.gov.au

The next Severe Weather Warning will be issued by 11:00 pm ACST Sunday.
Check https://www.bom.gov.au/weather-and-climate/warnings-and-alerts. Warnings are also available through TV and Radio broadcasts or call 1300 659 210. The Bureau and Northern Territory Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology, National Water Operations

Major Flood Warning For The Daly River
Issued at 04:12 PM ACST on Sunday 22 March 2026
Flood Warning Number: 31

PROLONGED MAJOR FLOODING CONTINUING AT DALY RIVER POLICE STATION, WITH RENEWED RISES LIKELY
Ex-Tropical Cyclone Narelle is forecast to bring widespread heavy to locally intense rainfall to the parts of the Top End during Sunday into Monday. There is currently major flooding along the Daly River, and forecast rainfall is expected to prolong major flooding and likely cause renewed river level rises.
River levels at Daly River Police Station are expected to remain above major flood level for the remainder of Sunday into next week, with renewed level rises likely. The situation will be closely monitored and this warning will be updated as required.
A Flood Watch is current for parts of the Top End including the Daly River catchment. A Tropical Cyclone Advice and Severe Weather Warning are also current for parts of the Northern Territory.

Daly River above Douglas River:
Flooding likely along the Daly River above Douglas River.
Fergusson River:
Flooding likely along the Fergusson River.
Lower Daly River:
Prolonged major flooding is continuing along the Daly River with renewed rises likely.
The Daly River at Daly River Police Station is currently at 14.27 m and steady, with major flooding.
The Daly River at Daly River Police Station is expected to remain above the major flood level (14.00 m) during Sunday. Further rises are likely with forecast rain.

Flood Safety Advice:
Don't drive, walk, swim or play in floodwater because it is dangerous.
Stay away from flooded drains, rivers, streams and waterways.
Obey road closure signs. Plan ahead so you don't drive on flooded roads.
Check the ABC and local media for updates. The situation can change quickly, so stay informed.
For local emergency management warnings and advice visit www.securent.nt.gov.au.}
For emergency assistance call SES on telephone number 132 500. In life-threatening emergencies, call 000 (triple zero) immediately.

Next issue:
The next warning will be issued by 11:30 AM ACST on Monday 23 March 2026.

Latest River Heights:
Daly River at Dorisvale Crossing,19.08,falling,3:15 pm Sun 22/03/26
Douglas River at Douglas Crossing,5.04,steady,4:00 pm Sun 22/03/26
Daly River at Mount Nancar,17.06,steady,3:45 pm Sun 22/03/26
Daly River at Daly River Police Station,14.27,steady,2:45 pm Sun 22/03/26

This advice is also available by dialling 1300 659 219. Warning, rainfall and river information are available at http://www.bom.gov.au/australia/flood.

Australian Government Bureau of Meteorology, National Water Operations

Major Flood Warning For The Roper And Waterhouse Rivers
Issued at 03:50 PM ACST on Sunday 22 March 2026
Flood Warning Number: 7

MAJOR FLOODING LIKELY AT BESWICK BRIDGE FROM MONDAY MORNING WITH FORECAST RAINFALL
Ex-Tropical Cyclone Narelle is forecast to bring widespread heavy to locally intense rainfall to parts of the Top End. Forecast heavy rainfall from late Sunday afternoon is likely to cause significant and rapid river level rises across the Waterhouse River catchment.
River levels at Beswick Bridge are likely to exceed the minor flood level overnight Sunday into Monday and are likely to exceed the moderate and major flood levels from Monday morning.
The situation will be closely monitored and this warning will be updated as required.
A Flood Watch is current for parts of Top End including Waterhouse and Roper River catchments. A Tropical Cyclone Advice and Severe Weather warning are also current for parts of NT.

Waterhouse River:
Rapid river rises and major flooding is likely to develop along the Waterhouse River at Beswick Bridge from Monday morning.
The Waterhouse River at Beswick Bridge is currently at 5.26 m and rising, below the minor flood level.
The Waterhouse River at Beswick Bridge is likely to exceed the minor flood level (7.70 m) overnight Sunday into Monday. The river is likely exceed the moderate flood level (8.10 m) early Monday morning and major flood levels (8.70 m) from Monday morning.

Flood Safety Advice:
Don't drive, walk, swim or play in floodwater because it is dangerous.
Stay away from flooded drains, rivers, streams and waterways.
Obey road closure signs. Plan ahead so you don't drive on flooded roads.
Check the ABC and local media for updates. The situation can change quickly, so stay informed.
For local emergency management warnings and advice visit www.securent.nt.gov.au.}
For emergency assistance call SES on telephone number 132 500. In life-threatening emergencies, call 000 (triple zero) immediately.

Next issue:
The next warning will be issued by 05:00 AM ACST on Monday 23 March 2026.

Latest River Heights:
Waterhouse River at Diljin Hill (Downstream),4.05,rising,2:45 pm Sun 22/03/26
Waterhouse River at Beswick Bridge,5.26,rising,3:45 pm Sun 22/03/26

This advice is also available by dialling 1300 659 219. Warning, rainfall and river information are available at http://www.bom.gov.au/australia/flood.

Australian Government Bureau of Meteorology, National Water Operations

Major Flood Warning For The Katherine River
Issued at 03:47 PM ACST on Sunday 22 March 2026
Flood Warning Number: 44

MAJOR FLOODING LIKELY AT NITMILUK CENTRE FROM MONDAY MORNING AND AT KATHERINE BRIDGE FROM MONDAY AFTERNOON
Ex-Tropical Cyclone Narelle is forecast to bring widespread heavy to locally intense rainfall to parts of the Top End. Forecast heavy rainfall from Sunday evening is likely to cause significant and rapid river level rises across the Katherine River catchment.
Major flooding is likely to develop at Nitmiluk Centre from Monday morning. Major flooding is likely to develop at Katherine Bridge from Monday afternoon.
This situation will be closely monitored and this warning will be updated as required.
A Flood Watch is current for parts of the Top End including the Katherine River catchment. A Tropical Cyclone Advice and Severe Weather Warning are also current for parts of the Northern Territory.

Katherine River Gorge Road:
Major flooding is likely along the Katherine River at Nitmiluk Centre.
The Katherine River at Nitmiluk Centre is currently at 2.46 m and rising, below the minor flood level.
The Katherine River at Nitmiluk Centre is likely to exceed the minor flood level (3.00 m) Sunday evening. The river is likely to exceed the moderate flood level (5.50 m) early Monday morning and major (6.50 m) flood level during Monday morning.

Katherine Town:
Major flooding is likely along the Katherine River at Katherine Town.
The Katherine River at Katherine Bridge is currently at 9.83 m and rising, below the minor flood level.
The Katherine River at Katherine Bridge is likely to exceed the minor flood level (16.00 m) overnight Sunday into Monday. The river is likely to exceed the moderate (16.5 m) flood level from Monday morning and major (17.5 m) flood level from Monday afternoon.

Flood Safety Advice:
Don't drive, walk, swim or play in floodwater because it is dangerous.
Stay away from flooded drains, rivers, streams and waterways.
Obey road closure signs. Plan ahead so you don't drive on flooded roads.
Check the ABC and local media for updates. The situation can change quickly, so stay informed.
For local emergency management warnings and advice visit www.securent.nt.gov.au.}
For emergency assistance call SES on telephone number 132 500. In life-threatening emergencies, call 000 (triple zero) immediately.

Next issue:
The next warning will be issued by 04:00 AM ACST on Monday 23 March 2026.

Latest River Heights:
Katherine River near Birdie Creek,4.57,rising,2:50 pm Sun 22/03/26
Seventeen Mile Creek at Waterfall View,2.58,rising,3:15 pm Sun 22/03/26
Katherine River at Nitmiluk Centre,2.46,rising,3:41 pm Sun 22/03/26
Katherine River at Katherine Bridge,9.83,rising,3:41 pm Sun 22/03/26

This advice is also available by dialling 1300 659 219. Warning, rainfall and river information are available at http://www.bom.gov.au/australia/flood.

Australian Government Bureau of Meteorology
Northern Territory

Cancellation of Coastal Hazard Warning

for Arnhem and Carpentaria districts.

Issued at 2:17 pm Sunday, 22 March 2026.


Sea levels returning to normal for the western Gulf of Carpentaria

Weather Situation
Elevated sea levels reducing as Ex-Tropical Cyclone Narelle heads further east.
cancellation of coastal hazard warning for the following areas:
Arnhem and Carpentaria
This warning is now cancelled.


The Northern Territory Emergency Service advises that people should:
* avoid driving into water of unknown depth and current
* stay away from flooded drains, rivers, streams and waterways
* for emergency help in floods, storms and cyclones, contact the NTES on 132 500. For more safety tips visit www.securent.nt.gov.au

No further warnings will be issued for this event.
Check https://www.bom.gov.au/weather-and-climate/warnings-and-alerts. Warnings are also available through TV and Radio broadcasts or call 1300 659 210. The Bureau and Northern Territory Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology
Northern Territory

Cancellation of Coastal Hazard Warning

for Arnhem and Carpentaria districts.

Issued at 2:17 pm Sunday, 22 March 2026.


Sea levels returning to normal for the western Gulf of Carpentaria

Weather Situation
Elevated sea levels reducing as Ex-Tropical Cyclone Narelle heads further east.
cancellation of coastal hazard warning for the following areas:
Arnhem and Carpentaria
This warning is now cancelled.


The Northern Territory Emergency Service advises that people should:
* avoid driving into water of unknown depth and current
* stay away from flooded drains, rivers, streams and waterways
* for emergency help in floods, storms and cyclones, contact the NTES on 132 500. For more safety tips visit www.securent.nt.gov.au

No further warnings will be issued for this event.
Check https://www.bom.gov.au/weather-and-climate/warnings-and-alerts. Warnings are also available through TV and Radio broadcasts or call 1300 659 210. The Bureau and Northern Territory Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology
Tropical Cyclone Advice
Tropical Cyclone Warning Centre

Media: The Standard Emergency Warning Signal should NOT be used with this warning.

TOP PRIORITY FOR IMMEDIATE BROADCAST

TROPICAL CYCLONE ADVICE NUMBER 36
Issued at 10:47 AM CST on Sunday 22 March 2026

Headline:
Ex-Tropical Cyclone Narelle has crossed the eastern Top End coast and weakened below tropical cyclone strength.

Areas Affected:
Warning zone: King George River Mouth to WA/NT Border.

Watch zone: None.

Cancelled zone: Milingimbi to Nathan River, including Nhulunbuy, Galiwin'ku, Numbulwar, Alyangula, Gapuwiyak, Bulman, and Ngukurr.

Details of Ex-Tropical Cyclone Narelle 34U at 9:30 am ACST:
Intensity: Tropical Low, sustained winds near the centre of 75 kilometres per hour with wind gusts to 100 kilometres per hour.
Location: within 45 kilometres of 14.0 degrees South 134.3 degrees East, estimated to be 230 kilometres west of Alyangula and 225 kilometres east northeast of Katherine.
Movement: west southwest at 33 kilometres per hour.
Ex-Tropical Cyclone Narelle has weakened below tropical cyclone strength south of Bulman. The system will weaken further over the coming hours and track across the Top End on Sunday and early Monday as a tropical low. A Severe Weather Warning is current for heavy, locally intense rainfall and damaging winds.
During Monday, Narelle is expected to move over the Joseph Bonaparte Gulf and gales are forecast to redevelop to the north of the centre. There is a Low chance that Narelle redevelops into a tropical cyclone while in the Joseph Bonaparte Gulf near the NT/WA Border.

Hazards:
Northern Territory:
Ex-Tropical Cyclone Narelle has weakened below tropical cyclone strength and the latest Severe Weather Warning should be referred to as GALES with DAMAGING WIND GUSTS and HEAVY, LOCALLY INTENSE RAINFALL remains possible over parts of the Top End.
Western Australia:
GALES with DAMAGING WIND GUSTS to 90 km/h are possible between King George River Mouth and the WA/NT border during Monday.
HEAVY RAINFALL which may lead to FLASH FLOODING is possible for the north Kimberley during Monday.

Recommended Action:
NTES advises:
- For cyclone preparedness and safety advice, visit the Secure NT website at https://securent.nt.gov.au
- For emergency assistance call the Northern Territory Emergency Service (NTES) on 132 500 (for assistance with storm damage, rising flood water, fallen trees on buildings or roof damage).
DFES advises:
Ensure you know what to do in a cyclone. For the latest DFES community alerts and warnings visit www.emergency.wa.gov.au or download the Emergency WA app.

Cyclone advices and DFES Alerts are available by dialling 13 DFES (13 3337)

A map showing the track of the cyclone is available at:
http://www.bom.gov.au/cyclone

Australian Government Bureau of Meteorology, Australia

Flood Watch For Parts Of The Top End
Issued at 10:26 AM ACST on Sunday 22 March 2026
Flood Watch Number: 4
ADDITIONAL AREAS OF MAJOR FLOODING LIKELY ACROSS PARTS OF THE TOP END FROM SUNDAY

Catchments likely to be affected include:
East Kimberley Rivers
Victoria River below Kalkarindji
Fitzmaurice River
Moyle River
Katherine River
Daly River above Douglas River
Lower Daly River
Finniss River
Tiwi Islands
Upper Adelaide River
Adelaide River below Adelaide River Town
Mary River
Wildman River
South Alligator River
East Alligator River
Goomadeer River
Liverpool River
Blyth River
Goyder River
Buckingham River
Koolatong River
Walker River
Waterhouse River
Roper River
Groote Eylandt

Flood Warnings are current for the following catchment(s): Katherine, Daly above Douglas, Lower Daly, Upper Adelaide and Waterhouse

For the latest flood and weather warnings see www.bom.gov.au/weather-and-climate/warnings-and-alerts
For the latest rainfall and river level information see www.bom.gov.au/australia/flood

Flood Safety Advice:
Don't drive, walk, swim or play in floodwater because it is dangerous.
Stay away from flooded drains, rivers, streams and waterways.
Obey road closure signs. Plan ahead so you don't drive on flooded roads.
Check the ABC and local media for updates. The situation can change quickly, so stay informed.
For local emergency management warnings and advice visit www.securent.nt.gov.au.}
For emergency assistance call SES on telephone number 132 500. In life-threatening emergencies, call 000 (triple zero) immediately.

Next issue:
The next Flood Watch will be issued by 01:00 PM ACST on Monday 23 March 2026.