Northern Sydney NSW SES

The NSW SES is advising people in the following area(s) to STAY INDOORS due to intense rainfall with flash flooding likely, damaging winds, large hailstones:
- Orange
- Dubbo
- Mudgee
- Katoomba
- Cooma
- Yass

WATCH AND ACT
Next update: Sunday 22 Mar 9:15 pm

Find out more: https://hazardwatch.gov.au/a/dwgGX6

Central NSW severe weather
Stay indoors
Watch and Act

The NSW SES is advising people in the following area(s) to STAY INDOORS due to intense rainfall with flash flooding likely:

- Gosford
- Sydney
- Wyong
- Penrith
- Parramatta
- The Entrance

93 MM WAS RECORDED AT MOSMAN IN 60 MIN TO 3:03 am
64 mm was recorded at Pearl Beach Reservoir in 60 min to 2:27 am
51 mm was recorded at Allambie in 30 min to 3:04 am
42 mm was recorded at Wahroonga in 30 min to 3:13 am

You should monitor the situation as it is constantly changing.

What are we expecting?

The Bureau of Meteorology advises a southerly change has been moving up the coast and combining with a mid level trough to trigger heavy and locally intense rainfall in a moist, unstable atmosphere. The heaviest rainfall has been recorded in coastal northern Sydney.

VERY DANGEROUS THUNDERSTORMS are likely to produce heavy, locally intense rainfall that may lead to dangerous and life-threatening flash flooding in the warning area over the next several hours.

At 3:10 am, a VERY DANGEROUS THUNDERSTORM likely to produce heavy, locally intense rainfall that may lead to dangerous and life-threatening flash flooding was detected near Dee Why and Collaroy.

This thunderstorm is moving towards the north. It is forecast to affect Mona Vale, Terrey Hills and Avalon Beach by 3:40 am and Palm Beach by 4:10 am.

This event may change quickly. NSW SES will monitor the situation and update warnings if the situation changes.

View the full warning: https://hazardwatch.gov.au/a/MQNKZ2

Download the Hazards Near Me App and set up ‘Watch Zones’ to receive warnings in real time. https://www.nsw.gov.au/emergency/hazards-near-me-app

For emergency assistance during a flood, storm or tsunami, call the NSW SES on 132 500. In a life-threatening emergency, call Triple Zero (000).

Post current at 3:54am on Wednesday 18th March 2026.

The NSW SES is advising people in the following area(s) to STAY INDOORS due to intense rainfall with flash flooding likely:
- Northern Sydney
- Dee Why
- Collaroy
- Mona Vale
- Avalon Beach
- Terry Hills
- Palm Beach

WATCH AND ACT
Next update: Wednesday 18 Mar 4:30 am

Find out more: https://hazardwatch.gov.au/a/6sPPYE

🌧️FLASH FLOODING RESPONSE IN SYDNEY

The NSW SES is advising people in the following area(s) to STAY INDOORS due to heavy rainfall, intense rainfall, flash flooding:
- Parramatta
- Sydney Olympic Park
- Sydney Harbour Bridge
- Fairfield
- Manly
- Ryde
- Horsley Park
- Blacktown
- Frenchs Forest
- Gordon
- Baulkham Hills
- Dee Why
- Erskine Park
- Collaroy
- Kellyville
- Rooty Hill
- Thornleigh
- Dee Why

WATCH AND ACT
Next update: Thursday 26 Feb 9:45 pm

Find out more: https://hazardwatch.gov.au/a/gCHf3u

The NSW SES is advising people in the following area(s) to STAY INDOORS due to heavy rainfall, intense rainfall, flash flooding:
- Parramatta
- Sydney City
- Sydney Olympic Park
- Sydney Harbour Bridge
- Fairfield
- Horsley Park
- Blacktown
- Frenchs Forest
- Gordon
- Baulkham Hills
- Dee Why
- Pennant Hills
- Erskine Park
- Collaroy
- Kellyville
- Rooty Hill
- St Ives
- Thornleigh

WATCH AND ACT
Next update: Thursday 26 Feb 9:15 pm

Find out more: https://hazardwatch.gov.au/a/rwJW_J

The NSW SES is advising people in the following area(s) to STAY INDOORS due to heavy rainfall, intense rainfall, flash flooding:
- Sydney City
- Sydney Airport
- Sydney Olympic Park
- Bankstown
- Fairfield
- Horsley Park
- Parramatta
- Sydney Harbour Bridge
- Ryde
- Blacktown
- Bondi Beach
- Cecil Park
- Erskine Park
- Baulkham Hills
- St Marys
- Chatswood
- Epping
- St Leonards

WATCH AND ACT
Next update: Thursday 26 Feb 9:00 pm

Find out more: https://hazardwatch.gov.au/a/YlbmEh

The NSW SES is advising people in the following area(s) to STAY INDOORS due to heavy rainfall, intense rainfall, flash flooding:
- Liverpool
- Sydney Olympic Park
- Parramatta
- Ryde
- Drummoyne
- Blacktown
- Erskine Park
- Baulkham Hills

WATCH AND ACT
Next update: Thursday 26 Feb 8:30 pm

Find out more: https://hazardwatch.gov.au/a/QympNr

NSW SES volunteers across Greater Sydney were kept busy over the weekend as intense rain caused flash flooding. ⛈️

Supported by our partner agencies, crews responded to more than 1,511 incidents throughout Sydney, including 17 flood rescues. The busiest areas were Avalon Beach, St Ives, Wahroonga, Newport, Pymble and Turramurra.

The majority of incidents have been for fallen trees, water coming into properties via ceilings, overflowing drains and gutters, or by flash flood water entering homes. There was also damage to properties from fallen trees, broken skylights and roofs.

While the rain has subsided, scattered showers are expected to persist today and more storms are expected later this week.

📲 Stay safe and stay prepared. Download the Hazards Near Me app to stay across the latest warnings and information from the NSW SES.

☎️ If you require assistance during a storm or flood, call the NSW SES on 132 500. If it’s a life-threatening emergency, always call Triple Zero (000).

Narrabeen Lagoon and surrounds flooding
Monitor conditions
Advice

The NSW SES advises people in the following area(s) to MONITOR CONDITIONS of the flooding on the Narrabeen Lagoon:

- Narrabeen Lagoon and surrounds, including the BIG4 Sydney Lakeside Holiday Park.

You should monitor conditions by checking warnings issued by NSW SES on their website and page, listening to your local ABC radio station, and following the latest weather information from the Bureau of Meteorology online.

What are we expecting?

Flooding is receding and no further significant rise in flood levels is expected. Water levels may still take some time to return to normal.

View the full warning: https://hazardwatch.gov.au/a/5oK2lc

Download the Hazards Near Me App and set up ‘Watch Zones’ to receive warnings in real time. https://www.nsw.gov.au/emergency/hazards-near-me-app

For emergency assistance during a flood, storm or tsunami, call the NSW SES on 132 500. In a life-threatening emergency, call Triple Zero (000).

Post current at 3:10pm on Sunday 18th January 2026.

Manly Lagoon and surrounds flooding
Monitor conditions
Advice

The NSW SES advises people in the following area(s) to MONITOR CONDITIONS of the flooding on the Manly Lagoon:

- along the northern bank of Manly Creek bounded by Nolan Reserve, Pittwater Road, Manly Creek and Mill Park - including Riverview Parade, Palm Avenue and Lakeside Crescent.

You should monitor conditions by checking warnings issued by NSW SES on their website and page, listening to your local ABC radio station, and following the latest weather information from the Bureau of Meteorology online.

What are we expecting?

Flooding is receding and no further significant rise in flood levels is expected. Water levels may still take some time to return to normal.

View the full warning: https://hazardwatch.gov.au/a/fEst89

Download the Hazards Near Me App and set up ‘Watch Zones’ to receive warnings in real time. https://www.nsw.gov.au/emergency/hazards-near-me-app

For emergency assistance during a flood, storm or tsunami, call the NSW SES on 132 500. In a life-threatening emergency, call Triple Zero (000).

Post current at 3:08pm on Sunday 18th January 2026.