Australian Government Bureau of Meteorology
New South Wales
TOP PRIORITY FOR IMMEDIATE BROADCAST
Detailed Severe Thunderstorm Warning
for Heavy Rainfall
for parts of Blue Mountains/Hawkesbury area.
Issued at 6:02 pm Saturday, 21 March 2026.
Severe thunderstorms with heavy rainfall persist near Wollemi National Park.
HEAVY RAINFALL for the following areas:
Blue Mountains/Hawkesbury
The Bureau of Meteorology warns that, at 6:05 pm, a severe thunderstorm likely to produce heavy rainfall that may lead to flash flooding was detected near Colo Heights and the Wollemi National Park north of Kurrajong. This thunderstorm is moving towards the northwest.
5 CM HAIL WAS RECORDED AT PENRITH AT 4:00 PM.
91 km/h wind gust was recorded at Western Sydney Airport at 3:42 pm.
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 the Central Tablelands, South West Slopes and parts of the Hunter, Metropolitan, Illawarra, Southern Tablelands, Central West Slopes and Plains, Snowy Mountains and Riverina districts.
The next warning is due to be issued by 7:05 pm.
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
Bilgola (33.6456°S, 151.3239°E, 99m AMSL) set as my default location ›
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7 day forecast
Today: Partly cloudy. Medium chance of showers. Light winds becoming SE 15 to 20 km/h in the late afternoon then becoming light in the evening.
Forecast for Bilgola (33.6456°S, 151.3239°E, 99m AMSL) Sun Mon Tue Wed Thu Fri Sat Summary
Minimum 21° 21° 21° 21° 19° 16° 14° Maximum 25° 25° 25° 25° 27° 21° 21° Chance of rain 70% 70% 60% 50% 60% 80% 90% Likely amount 1-5mm 1-5mm < 1mm < 1mm 1-5mm 1-5mm 1-5mm UV index Very High Very High Very High Very High Very High High High 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 12
(km/h)14
(km/h)4
(km/h)13
(km/h)7
(km/h)14
(km/h)13
(km/h)16
(km/h)8
(km/h)9
(km/h)20
(km/h)27
(km/h)22
(km/h)23
(km/h)Wind direction SSW SSE SSE E SSE ESE SW SSE WNW ENE W W WSW SSW Relative humidity 79% 71% 83% 72% 82% 67% 79% 63% 82% 60% 67% 49% 57% 54% Dew point 19°C 20°C 20°C 20°C 20°C 19°C 19°C 18°C 18°C 19°C 11°C 9°C 8°C 11°C -
Sunrise and sunset times
Sunrise / Sunset for Bilgola (33.6456°S, 151.3239°E, 99m AMSL) First light Sunrise Sunset Last light Moon rise Moon set Moon phase First quarter Full moon Last quarter New moon 6:35am EDT 7:00am EDT 7:03pm EDT 7:28pm EDT 10:15am EDT 8:44pm EDT
Waxing crescent
First quarter Mar 26 Full moon Apr 02 Last quarter Apr 10 New moon Apr 17 -
Warnings
- Detailed Severe Thunderstorm Warning (Heavy Rainfall) for parts of Blue Mountains/Hawkesbury area
- Detailed Severe Thunderstorm Warning (Heavy Rainfall) for parts of Blue Mountains/Hawkesbury area
- Severe Storm Warning (, Intense Rain, Winds & Hail) C Tablelands, SW Slopes & Hunter, Metropolitan, Illawarra, S Tablelands
- Severe Storm Warning (, Intense Rain, Winds & Hail) C Tablelands, SW Slopes & Hunter, Metropolitan, Illawarra, S Tablelands
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Temperature for next 7 days
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Rain for next 7 days