Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Detailed Severe Thunderstorm Warning
for Heavy Rainfall
for parts of Sydney, Wollondilly/Wingecarribee and Blue Mountains/Hawkesbury areas.
Issued at 8:26 am Friday, 12 December 2025.
Heavy rainfall occurring with showers and thunderstorms.
HEAVY RAINFALL for the following areas:
Blue Mountains/Hawkesbury, Sydney and Wollondilly/Wingecarribee
The Bureau of Meteorology warns that, at 8:25 am, severe thunderstorms likely to produce heavy rainfall that may lead to flash flooding were detected near Oakdale and Warragamba. They are forecast to affect the area west of Picton by 8:40 am and Camden, Picton and the Nattai Tablelands by 8:55 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.
* Unplug computers and appliances.
* Avoid using the phone during the storm.
* Stay indoors away from windows, and keep children and pets indoors as well.
* For emergency help in floods and storms, ring the SES (NSW and ACT) on 132 500.
A more general severe thunderstorm warning is also current for parts of the Metropolitan, Illawarra, Central Tablelands and Hunter districts.
The next warning is due to be issued by 9:00 am.
Warnings are also available through TV and Radio broadcasts, the Bureau's website at www.bom.gov.au or call 1300 659 210. The Bureau and State Emergency Service would appreciate warnings being broadcast regularly.
Forecast
Hunters Hill (33.8351°S, 151.1562°E, 25m AMSL) set as my default location ›
-
7 day forecast
Today: Cloudy. High chance of showers, becoming less likely this evening. A thunderstorm likely during the morning and afternoon, possibly severe with heavy rain which may lead to flash flooding. Winds S/SE 15 to 20 km/h turning E 15 to 25 km/h during the morning then becoming light in the late evening.
Forecast for Hunters Hill (33.8351°S, 151.1562°E, 25m AMSL) Fri Sat Sun Mon Tue Wed Thu Summary
Minimum 18° 17° 19° 18° 17° 16° 15° Maximum 22° 26° 30° 19° 20° 23° 25° Chance of rain 90% 80% 40% 40% 40% 30% 5% Likely amount 5-10mm 5-10mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating Moderate Moderate High 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 10
(km/h)14
(km/h)7
(km/h)16
(km/h)7
(km/h)10
(km/h)13
(km/h)19
(km/h)14
(km/h)16
(km/h)7
(km/h)15
(km/h)6
(km/h)16
(km/h)Wind direction SE E N ENE NW NNE S SSE SSE SE SE E N ENE Relative humidity 83% 75% 75% 61% 70% 44% 70% 63% 62% 57% 62% 51% 60% 49% Dew point 17°C 17°C 17°C 18°C 18°C 17°C 13°C 12°C 11°C 11°C 12°C 12°C 14°C 14°C -
Sunrise and sunset times
Sunrise / Sunset for Hunters Hill (33.8351°S, 151.1562°E, 25m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase Last quarter New moon First quarter 5:09am EDT 5:38am EDT 8:00pm EDT 8:29pm EDT 12:57am EDT 12:57pm EDT
3rd quarter
Last quarter Dec 12 New moon Dec 20 First quarter Dec 28 -
Warnings
- Detailed Severe Thunderstorm Warning (Heavy Rainfall) for parts of Sydney, Wollondilly/Wingecarribee and Blue Mountains/Hawkesbury areas
- Detailed Severe Thunderstorm Warning (Heavy Rainfall) for parts of Sydney, Wollondilly/Wingecarribee and Blue Mountains/Hawkesbury areas
- Severe Thunderstorm Warning (Heavy Rainfall) for parts of Metropolitan, Illawarra, Central Tablelands and Hunter
- Severe Thunderstorm Warning (Heavy Rainfall) for parts of Metropolitan, Illawarra, Central Tablelands and Hunter
-
Temperature for next 7 days
-
Rain for next 7 days