Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Severe Thunderstorm Warning
for Heavy Rainfall
for parts of Metropolitan, Central Tablelands, Southern Tablelands, Hunter and Illawarra Forecast Districts.
Issued at 1:33 pm Saturday, 17 January 2026.
Showers and isolated thunderstorms bring heavy rainfall to North Sydney, Blue Mountains and Southern Tablelands.
Weather Situation
A trough along central parts of the coast generates areas of showers and isolated thunderstorms, with some of these delivering heavy rainfall. Thunderstorms are also expected to develop this afternoon across northeast parts of the state, and may also become severe.
HEAVY RAINFALL for the following areas:
Hunter, Metropolitan, Illawarra, Central Tablelands and Southern Tablelands
Severe thunderstorms are likely to produce heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Locations which may be affected include Gosford, Katoomba, Lithgow, Woy Woy, Jenolan Caves and Springwood.
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 4:35 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
Roslyn (34.5029°S, 149.6075°E, 960m AMSL) set as my default location ›
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7 day forecast
Today: Cloudy. High chance of rain in the E, medium chance elsewhere. The chance of a thunderstorm. Winds SE 30 to 45 km/h decreasing to 25 to 35 km/h in the late evening. Daytime maximum temperatures between 14 and 22.
Forecast for Roslyn (34.5029°S, 149.6075°E, 960m AMSL) Sat Sun Mon Tue Wed Thu Fri Summary
Minimum 13° 12° 12° 13° 12° 12° 12° Maximum 15° 16° 19° 18° 22° 25° 24° Chance of rain 90% 90% 80% 90% 40% 50% 30% Likely amount 10-20mm 5-10mm 5-10mm 1-5mm 1-5mm 1-5mm < 1mm UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme Fire Danger Rating Moderate 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)25
(km/h)24
(km/h)24
(km/h)20
(km/h)20
(km/h)17
(km/h)18
(km/h)11
(km/h)13
(km/h)8
(km/h)12
(km/h)8
(km/h)10
(km/h)Wind direction SE SE SE ESE ESE ESE ESE ESE SE SSE S SSW ENE E Relative humidity 96% 91% 94% 82% 88% 67% 83% 58% 79% 43% 69% 33% 68% 39% Dew point 13°C 13°C 12°C 13°C 12°C 13°C 12°C 10°C 11°C 9°C 11°C 8°C 12°C 10°C -
Sunrise and sunset times
Sunrise / Sunset for Roslyn (34.5029°S, 149.6075°E, 960m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase New moon First quarter Full moon Last quarter 5:37am EDT 6:06am EDT 8:16pm EDT 8:44pm EDT 4:03am EDT 7:23pm EDT
Waning crescent
New moon Jan 19 First quarter Jan 26 Full moon Feb 02 Last quarter Feb 09 -
Warnings
- Severe Thunderstorm Warning (Heavy Rainfall) for parts of Metropolitan, Central Tablelands, Southern Tablelands, Hunter and Illawarra
- Severe Thunderstorm Warning (Heavy Rainfall) for parts of Metropolitan, Central Tablelands, Southern Tablelands, Hunter and Illawarra
- Severe Weather Warning (Damaging Winds) for parts of Southern Tablelands, South West Slopes and Snowy Mountains
- Severe Weather Warning (Damaging Winds) for parts of Southern Tablelands, South West Slopes and Snowy Mountains
- Sheep Graziers Warning for Illawarra, Southern Tablelands, Snowy Mountains & South Coast
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Temperature for next 7 days
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Rain for next 7 days