Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Detailed Severe Thunderstorm Warning
for Heavy Rainfall
for parts of Greater Newcastle and Gosford/Wyong areas.
Issued at 1:06 am Sunday, 18 January 2026.
Heavy rainfall continues about the Lake Macquarie and Newcastle area.
HEAVY RAINFALL for the following areas:
Greater Newcastle and Gosford/Wyong
The Bureau of Meteorology warns that, at 1:10 am, severe thunderstorms likely to produce heavy rainfall that may lead to flash flooding were detected near Swansea and Catherine Hill Bay. They are forecast to affect Belmont, Karuah and Lake Macquarie by 1:40 am and Warners Bay, Toronto and Wangi Wangi by 2:10 am.
Intense falls have eased about the Lake Macquarie area but may redevelop in the next few hours.
114 mm OF RAINFALL WAS RECORDED AT BLACKSMITHS IN THE 2.5 HOURS TO 01:00 AM SUNDAY.
108 mm OF RAINFALL WAS RECORDED AT SWANSEA IN THE 2.5 HOURS TO 12:50 AM SUNDAY.
114.2 mm of rainfall was recorded at Norah Head in the 3 hours to midnight.
97.8 mm of rainfall was recorded at Wangi Bowling Club in the 2.5 hours to 01:00 am Sunday.
84.0 mm of rainfall was recorded at Kangy Angy in the 3 hours to 11:30 pm Saturday.
Cancellation for the following areas:
Maitland/Cessnock
The State Emergency Service advises that people should:
* 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 parts of the Northern Rivers, Hunter, Metropolitan and Mid North Coast districts.
Other warnings may be current.
The next warning is due to be issued by 2:10 am.
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.
Forecast
Mangrove Mountain (33.3008°S, 151.1917°E, 283m AMSL) set as my default location ›
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7 day forecast
Today: Cloudy. High chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the morning and early afternoon, possibly severe with heavy rain which may lead to flash flooding near the coast. Winds SE 25 to 35 km/h. Overnight temperatures falling to between 15 and 18 with daytime temperatures reaching between 18 and 24.
Forecast for Mangrove Mountain (33.3008°S, 151.1917°E, 283m AMSL) Sun Mon Tue Wed Thu Fri Sat Summary
Minimum 18° 17° 15° 15° 14° 15° 17° Maximum 19° 22° 23° 23° 25° 25° 27° Chance of rain 90% 90% 90% 60% 30% 40% 40% Likely amount 20-40mm 1-5mm 1-5mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating No Rating Moderate Moderate Moderate - - - Frost risk Nil Nil Nil Nil Nil Nil Nil 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm Wind speed 15
(km/h)17
(km/h)10
(km/h)16
(km/h)10
(km/h)16
(km/h)10
(km/h)13
(km/h)5
(km/h)13
(km/h)4
(km/h)12
(km/h)5
(km/h)13
(km/h)Wind direction SSE SE S SE S SSE SW S SW SE SE ESE ENE E Relative humidity 96% 87% 85% 63% 83% 55% 74% 50% 70% 50% 74% 59% 75% 62% Dew point 18°C 17°C 17°C 14°C 16°C 14°C 15°C 13°C 14°C 14°C 16°C 17°C 18°C 19°C -
Sunrise and sunset times
Sunrise / Sunset for Mangrove Mountain (33.3008°S, 151.1917°E, 283m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter Full moon Last quarter 5:36am EDT 6:04am EDT 8:07pm EDT 8:35pm EDT 4:59am EDT 7:58pm EDT
Waning crescent
New moon Jan 19 First quarter Jan 26 Full moon Feb 02 Last quarter Feb 09 -
Warnings
- Detailed Severe Thunderstorm Warning (Heavy Rainfall) for parts of Greater Newcastle and Gosford/Wyong areas
- Detailed Severe Thunderstorm Warning (Heavy Rainfall) for parts of Greater Newcastle and Gosford/Wyong areas
- Severe Thunderstorm Warning (Heavy, Locally Intense Rainfall) for parts of Northern Rivers, Hunter, Metropolitan and Mid North Coast
- Severe Thunderstorm Warning (Heavy, Locally Intense Rainfall) for parts of Northern Rivers, Hunter, Metropolitan and Mid North Coast
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Temperature for next 7 days
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Rain for next 7 days