Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Severe Thunderstorm Warning
for Heavy, Locally Intense Rainfall
for parts of Hunter, Metropolitan and Illawarra Forecast Districts.
Issued at 5:56 pm Saturday, 17 January 2026.
HEAVY TO LOCALLY INTENSE RAINFALL ABOUT SYDNEY AND CENTRAL COAST
Weather Situation
A trough along central parts of the coast is generating areas of showers and isolated thunderstorms, with some of these delivering heavy to intense rainfall. Thunderstorms are developing across northeast parts of the state, and may also become severe.
HEAVY, LOCALLY INTENSE RAINFALL for the following areas:
Hunter, Metropolitan and Illawarra
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. Locations which may be affected include Gosford, Sydney, Wollongong, Woy Woy, Bulli and Port Kembla.
82.5MM OF RAINFALL WAS RECORDED AT PEARL BEACH IN THE 1 HOUR TO 2:34 PM.
91.5MM OF RAINFALL WAS RECORDED AT ETTALONG IN THE 1 HOUR TO 2:19 PM.
67 mm was recorded at Cronulla South in the 2 hour to 5:35 pm.
57 mm of rainfall was recorded at Kilcare Heights in the 1 hour to 2:34 pm.
65 mm of rainfall was recorded at Bensville in the 1 hour to 2:34 pm.
65 mm of rainfall was recorded at Woy Woy in the 1 hour to 2:33 pm.
71 mm of rainfall was recorded at Koolewong in the 1 hour to 2:26 pm.
62.5mm of rainfall was recorded at Avalon in the 1 hour to 2:13 pm.
49mm of rainfall was recorded at Medlow Bath in the 2 hours to 11:30 am.
48mm of rainfall was recorded at Blackheath in the 60 min to 11 am.
35mm of rainfall was recorded at North Parramatta in the 30 min to 8:27 am.
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).
The next warning is due to be issued by 9:00 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.
Forecast
Roseville (33.7846°S, 151.1771°E, 115m AMSL) set as my default location ›
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7 day forecast
Today: Cloudy. Very high chance of rain. The chance of a thunderstorm, possibly severe with heavy rain which may lead to flash flooding. Winds S 25 to 40 km/h decreasing to 20 to 30 km/h in the late evening.
Forecast for Roseville (33.7846°S, 151.1771°E, 115m AMSL) Sat Sun Mon Tue Wed Thu Fri Summary
Minimum 20° 19° 18° 18° 17° 16° 17° Maximum 21° 21° 22° 23° 23° 23° 24° Chance of rain 90% 90% 70% 50% 40% 60% 10% Likely amount 40-80mm 10-20mm 1-5mm 1-5mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating Moderate 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 23
(km/h)26
(km/h)22
(km/h)22
(km/h)14
(km/h)19
(km/h)14
(km/h)20
(km/h)14
(km/h)20
(km/h)10
(km/h)17
(km/h)6
(km/h)14
(km/h)Wind direction SSE SSE SE SE SSE SSE SSE SSE SSW S SW SSE S ESE Relative humidity 84% 84% 85% 77% 73% 67% 74% 59% 72% 57% 71% 58% 70% 60% Dew point 18°C 18°C 17°C 17°C 16°C 16°C 16°C 14°C 14°C 14°C 15°C 15°C 16°C 16°C -
Sunrise and sunset times
Sunrise / Sunset for Roseville (33.7846°S, 151.1771°E, 115m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter Full moon Last quarter 5:33am EDT 6:02am EDT 8:09pm EDT 8:37pm EDT 4:00am EDT 7:16pm EDT
Waning crescent
New moon Jan 19 First quarter Jan 26 Full moon Feb 02 Last quarter Feb 09 -
Warnings
- Severe Thunderstorm Warning (Heavy, Locally Intense Rainfall) for parts of Hunter, Metropolitan and Illawarra
- Severe Thunderstorm Warning (Heavy, Locally Intense Rainfall) for parts of Hunter, Metropolitan and Illawarra
- Detailed Severe Thunderstorm Warning (Intense Rainfall) for parts of Gosford/Wyong and Sydney areas
- Detailed Severe Thunderstorm Warning (Intense Rainfall) for parts of Gosford/Wyong and Sydney areas
- Strong Wind Warning for Sydney Enclosed Waters & Hunter, Sydney, Illawarra and Batemans coasts
- cancellation of coastal hazard Warning for Sydney Metropolitan, Hunter, Illawarra & Mid North and South coasts
- cancellation of coastal hazard Warning for Sydney Metropolitan, Hunter, Illawarra & Mid North and South coasts
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Temperature for next 7 days
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Rain for next 7 days