Forecast

Australian Government Bureau of Meteorology
New South Wales

TOP PRIORITY FOR IMMEDIATE BROADCAST

Detailed Severe Thunderstorm Warning
for Damaging Winds, Large Hailstones And Heavy Rainfall

for Gosford/Wyong and parts of Blue Mountains/Hawkesbury, Maitland/Cessnock, Sydney, Greater Wollongong and Wollondilly/Wingecarribee areas.

Issued at 3:17 pm Sunday, 4 January 2026.

DAMAGING WINDS, LARGE HAILSTONES and HEAVY RAINFALL for the following areas:
Blue Mountains/Hawkesbury, Maitland/Cessnock, Gosford/Wyong, Sydney, Wollondilly/Wingecarribee and Greater Wollongong
The Bureau of Meteorology warns that, at 3:20 pm, severe thunderstorms likely to produce damaging winds, large hailstones and heavy rainfall that may lead to flash flooding were detected near Wollongong, Bankstown, the Yengo National Park northwest of St Albans, Wisemans Ferry and Fairfield. These thunderstorms are moving towards the east. They are forecast to affect Parramatta, Sydney City, Sydney Airport, Sydney Olympic Park and the Sydney Harbour Bridge by 3:50 pm and Gosford, waters off Bondi Beach and Bundeena by 4:20 pm.

The State Emergency Service advises that people should:
* Park your car under secure cover and away from trees, powerlines and drains.
* Secure or put away loose items around your house, yard and balcony.
* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.
* Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Stay indoors away from windows, and keep children and pets indoors as well.
For emergency help in flood and storms, ring the SES on 132 500.
Stay updated on the Hazards Near Me NSW app or the ACT ESA website (https://esa.act.gov.au).
A more general severe thunderstorm warning is also current for the Metropolitan and parts of the Hunter, Illawarra, South Coast, Central Tablelands, North West Slopes and Plains and Snowy Mountains districts.
Other warnings may be current.

The next warning is due to be issued by 4:20 pm.
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 State Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology
New South Wales

TOP PRIORITY FOR IMMEDIATE BROADCAST

Detailed Severe Thunderstorm Warning
for Damaging Winds, Large Hailstones And Heavy Rainfall

for Gosford/Wyong and parts of Blue Mountains/Hawkesbury, Maitland/Cessnock, Sydney, Greater Wollongong and Wollondilly/Wingecarribee areas.

Issued at 3:17 pm Sunday, 4 January 2026.

DAMAGING WINDS, LARGE HAILSTONES and HEAVY RAINFALL for the following areas:
Blue Mountains/Hawkesbury, Maitland/Cessnock, Gosford/Wyong, Sydney, Wollondilly/Wingecarribee and Greater Wollongong
The Bureau of Meteorology warns that, at 3:20 pm, severe thunderstorms likely to produce damaging winds, large hailstones and heavy rainfall that may lead to flash flooding were detected near Wollongong, Bankstown, the Yengo National Park northwest of St Albans, Wisemans Ferry and Fairfield. These thunderstorms are moving towards the east. They are forecast to affect Parramatta, Sydney City, Sydney Airport, Sydney Olympic Park and the Sydney Harbour Bridge by 3:50 pm and Gosford, waters off Bondi Beach and Bundeena by 4:20 pm.

The State Emergency Service advises that people should:
* Park your car under secure cover and away from trees, powerlines and drains.
* Secure or put away loose items around your house, yard and balcony.
* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.
* Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Stay indoors away from windows, and keep children and pets indoors as well.
For emergency help in flood and storms, ring the SES on 132 500.
Stay updated on the Hazards Near Me NSW app or the ACT ESA website (https://esa.act.gov.au).
A more general severe thunderstorm warning is also current for the Metropolitan and parts of the Hunter, Illawarra, South Coast, Central Tablelands, North West Slopes and Plains and Snowy Mountains districts.
Other warnings may be current.

The next warning is due to be issued by 4:20 pm.
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 State Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology
New South Wales

TOP PRIORITY FOR IMMEDIATE BROADCAST

Severe Thunderstorm Warning
for Damaging Winds, Large Hailstones And Heavy Rainfall

for Metropolitan and parts of Hunter, Illawarra, South Coast, Central Tablelands, North West Slopes and Plains and Snowy Mountains Forecast Districts.

Issued at 3:15 pm Sunday, 4 January 2026.

Severe thunderstorms continuing over eastern parts of the state.

Weather Situation
A warm and humid airmass combines with an upper-level trough to generate severe thunderstorms across large parts of the state today.
DAMAGING WINDS, LARGE HAILSTONES and HEAVY RAINFALL for the following areas:
Hunter, Metropolitan, Illawarra, South Coast, Central Tablelands, North West Slopes and Plains and Snowy Mountains
Severe thunderstorms are likely to produce damaging winds, large hailstones and heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Locations which may be affected include Gosford, Sydney, Wollongong, Penrith, Parramatta, Bowral, Campbelltown, Bombala, Wyong, The Entrance, Woy Woy and Kulnura.
Severe thunderstorms are no longer occurring in the Southern Tablelands and Central West Slopes and Plains districts and the warning for these districts is CANCELLED.
40 mm of rainfall was recorded at Yalwal in the 30 minutes to 2:00 pm.
28 mm of rainfall was recorded at Oberon (Jenolan Caves Road) in the 30 minutes to 1:20 pm.
Cancellation for the following areas:
Central West Slopes and Plains,South West Slopes,Southern Tablelands

The State Emergency Service advises that people should:
* Park your car under secure cover and away from trees, powerlines and drains.
* Secure or put away loose items around your house, yard and balcony.
* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.
* Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Stay indoors away from windows, and keep children and pets indoors as well.
For emergency help in flood and storms, ring the SES on 132 500.
Stay updated on the Hazards Near Me NSW app or the ACT ESA website (https://esa.act.gov.au).

The next warning is due to be issued by 6:15 pm.
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 State Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology
New South Wales

TOP PRIORITY FOR IMMEDIATE BROADCAST

Severe Thunderstorm Warning
for Damaging Winds, Large Hailstones And Heavy Rainfall

for Metropolitan and parts of Hunter, Illawarra, South Coast, Central Tablelands, North West Slopes and Plains and Snowy Mountains Forecast Districts.

Issued at 3:15 pm Sunday, 4 January 2026.

Severe thunderstorms continuing over eastern parts of the state.

Weather Situation
A warm and humid airmass combines with an upper-level trough to generate severe thunderstorms across large parts of the state today.
DAMAGING WINDS, LARGE HAILSTONES and HEAVY RAINFALL for the following areas:
Hunter, Metropolitan, Illawarra, South Coast, Central Tablelands, North West Slopes and Plains and Snowy Mountains
Severe thunderstorms are likely to produce damaging winds, large hailstones and heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Locations which may be affected include Gosford, Sydney, Wollongong, Penrith, Parramatta, Bowral, Campbelltown, Bombala, Wyong, The Entrance, Woy Woy and Kulnura.
Severe thunderstorms are no longer occurring in the Southern Tablelands and Central West Slopes and Plains districts and the warning for these districts is CANCELLED.
40 mm of rainfall was recorded at Yalwal in the 30 minutes to 2:00 pm.
28 mm of rainfall was recorded at Oberon (Jenolan Caves Road) in the 30 minutes to 1:20 pm.
Cancellation for the following areas:
Central West Slopes and Plains,South West Slopes,Southern Tablelands

The State Emergency Service advises that people should:
* Park your car under secure cover and away from trees, powerlines and drains.
* Secure or put away loose items around your house, yard and balcony.
* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.
* Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Stay indoors away from windows, and keep children and pets indoors as well.
For emergency help in flood and storms, ring the SES on 132 500.
Stay updated on the Hazards Near Me NSW app or the ACT ESA website (https://esa.act.gov.au).

The next warning is due to be issued by 6:15 pm.
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 State Emergency Service would appreciate warnings being broadcast regularly.

Australian Government Bureau of Meteorology
New South Wales

Marine Wind Warning Summary for New South Wales

Issued at 01:34 PM EDT on Sunday 04 January 2026
for the period until midnight EDT Sunday 04 January 2026

Wind Warnings for Sunday 04 January
Strong Wind Warning for the following areas:
Macquarie Coast and Hunter Coast

The next marine wind warning summary will be issued by 4:05 pm EDT Sunday.
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Check the latest Coastal Waters Forecast or Local
Waters Forecast at http://www.bom.gov.au/nsw/forecasts/map.shtml for information on wind,
wave and weather conditions for these coastal zones.
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