Category Archives: Photograph

Photographs mainly of clouds and storms on this website

Rain / Storms SE Australia – 28 to 30 September and 1 October 2021

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A four day weather event has unfolded across south east Australia encompassing south Australia, Victoria, New South Wales and Queensland including the Australian Capital Territory. Given the widespread nature of this event, the most significant events for each day are considered as separate statements.

Day 1 - Tuesday 28 September 2021

Rain and thunderstorms developed across western New South Wales that has brought some significant events. For the 24 hours to 9 am 29/9/21, the heaviest rainfalls included:-

Jingellic (Upstream of Lake Hume) on the New South Wales / Victorian state border - 54 mm.
Jingellic Creek - 50 mm.
Portable - 45 mm.
Hillston - 42 mm.

Falls of 20 mm to 30 mm were common across the south west slopes including areas around Albury Wodonga and Lake Hume being the heaviest falls for the period.

Thunderstorms developed across a wide swathe of New South Wales but generally concentrated across the western and north western areas with some moving across the Riverina.

None of this activity reached coastal areas or the Sydney region.

Day 2 - Wednesday 29 September 2021

Significant thunderstorm activity occurred across north west New South Wales with the stronger storms producing hail events. Bourke in particular was heavily affected by one storm event in which 24.4 mm fell in 30 minutes between 12 noon and 12.30pm. The town had received 42 mm by 4 pm and 43.8 mm by 5 pm. Interestingly, the weather station did not register significant gales from this storm with peak winds reaching just 43 km/h.

This event would have caused some flash flooding due to the intensity of the rain.

The small town of Walgett to the east has also received thunderstorm activity with 60 mm falling including 30 mm in 1 hour from one storm between 5 pm and 6 pm.

The same system also produced hail events from the strongest cells.

Pallamallawwa recorded 63 mm, nearby Pilliga recorded 62 mm, Krui Plains recorded 61 mm and Mungindi recorded 58 mm being amongst the highest totals across New South Wales. The highest totals were all recorded on the inland hills and plains of the North West Slopes. Many other areas within the region received between 25 and 49 mm of rain from showers and storms.

There was also an isolated fall of 51 mm just to the south of Queanbeyan adjacent to the border with the Australian Capital Territory.

None of the storm activity impacted Sydney with only very light rainfall totals being recorded from passing showers.

Day 3 - Thursday 30 September 2021

For the 24 hours to 9 am Friday 1 October 2021, thunderstorm activity reached the Sydney region. One late morning cell (Thursday) developed or passed over the southern Penrith region while during the evening, two storm cells developed over North West Sydney as shown in the attached photos taken from Doonside looking north. With COVID restrictions in place, it was not possible to chase these.

Rainfall was relatively light although I have been shown photos of small hail of 10 to 15 mm in size falling at Kings Langely (Northern side of Blacktown). It is likely that larger hail fell further north.

They were the first storms in Sydney for the spring and summer season.

Thunderstorms also developed over North east New South Wales and one particular thunderstorm near Meadow Flat west of Lithgow on the Great Western Highway was reported to have produced a tornado which has damaged homes. This event was recorded and filmed by local residents with news footage also showing the tornado including the damage that it caused to homes. It is suggested that the tornado formed near Clear Creek and travelled 25 km south east towards Meadow Flat.

It appears that there were two other tornado events near Mudgee and Narribri as shown in news reports.

There were also storm activity around Kandos and north east New South Wales.

High rainfall totals were not common. The heaviest totals occurred around the Tweed River area where 25 to 49 mm were common. A fall of 52 mm occurred at Glenarbon Weir situated on the New South Wales / Queensland State border.

Day 4 Friday - 1 October 2021

There has been further thunderstorm activity including those within the Sydney region. Generally, this will be treated as a separate item given that during the late afternoon, a significant thunderstorm passed over Western Sydney with intense rain and gales. A detailed severe thunderstorm warning was issued for this cell for wind, hail and heavy rain.

I managed to photograph the base which included various signs of a green tinge (Attached) before it dropped significant rainfall and probable hail to areas further to the east of Doonside.

Strong Cold Front – Southern Australia – 14 March 2021

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A strong cold front has passed through southern Australia which is now progressing into north eastern New South Wales.

Ahead of this change, a warm to hot air mass surged southwards which resulted in temperatures reaching into the low to mid 30S however the air behind the change is relatively cool to cold.

This is a significant change due to the temperature changes that are occurring ahead and behind the change. For example, it reached 32.6C in Blacktown on Saturday but it has struggled to reach 20C on Sunday (Maximum being 20.2C).

Similar conditions are being felt across New South Wales ahead and behind the change.

A feature of this change is the large slow moving north west to south east cloud mass and rain band that marks the change. A closer look at this reveals a band of cloud that marks the presence of thunderstorms / embedded thunderstorms that is occurring at the leading edge of the rain band.

The change reached Western Sydney including Blacktown after 4 am Sunday morning. Some thunder was audible on the leading edge of the rain band between 4 am and 5 am with heavy showers. More general rain followed thereafter before easing into lighter showers.

Some rainfall figures include:-

Victoria (For the 24 hours to 9 am 14/3/2021)

42 mm at Mt Baw Baw.

40 mm at Mt Donna Buang.

20 to 29 mm across parts of the outer eastern suburbs of Melbourne in areas close to the Dandenong ranges.

New South Wales (For the 24 hours to 9 am 14/3/2021)

53 mm at Orange.

48 mm at Putty.

47 mm at Kulnurra (Jeavons).

46 mm at Wyee.

37 mm at Nowra.

30 mm at West Pennant Hills.

(For the 6 hours between 9 am and 3 pm)

The impacts are more noticeable as the system moves towards and into north east New South Wales. Rainfall figures for the 6 hours include:-

72 mm at Tangary Mountain.

60 mm at Elderslie.

49 mm at Tocal.

40 to 44 mm around Maitland.

The satellite photo from Himwari clearly shows the cloud mass that features this change with cumulonimbus clouds visible on its leading edge. The radar image of Sydney early Sunday morning shows the structure of the change with heavier rain evident on its leading edge with the change encroaching onto the Hunter Valley by 8 am.

The photo attached is showing one of the heavier showers that occurred Sunday morning at Blacktown.

Rain / Showers and storms – Eastern New South Wales – 8 to 12 March 2021

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The period between the 8 and 12 of March 2021 has been active and rain / showers and storms have been a feature across large areas of eastern New South Wales. Storms have impacted Sydney on at least 2 days during this period being Monday afternoon with the area between Penrith and Blacktown being impacted the most and Friday afternoon with southern Sydney being impacted.

Rain and storms have featured across wide areas and some of the more significant events include:-

8 March 2021

Penrith to Blacktown Storm event - While the storm was embedded within existing cloud, this storm that traversed the Penrith to Blacktown region produced the occasional cloud to ground lightning including two cloud to ground strikes that occurred well ahead of the main storm core.

This storm produced peak wind gusts of 78 km/h at Penrith and a peak rainfall intensity of 13.4 mm between 4.25 pm and 4.30 pm (An intensity that exceeded 2 mm per minute). This storm impacted Blacktown and produced strong to gale force winds (Downbursts) and short but sharp heavy bursts of rain. Erskine Park recorded 23 mm followed by Penrith where 18.2 mm. The area around Blacktown had between 12 and 16 mm of rain.

The photos attached to this post are taken as the storm was approaching from the west.

This storm went into rapid decline as it passed over the Parramatta area.

Taree - A significant thunderstorm impacted the town which resulted heavy rainfall of up to 45 mm to 5.35 pm. At 5.01 pm, the rain gauge had registered 7.2 mm. However, by 5.10 pm, the rain gauge had recorded 29.2 mm. This is a fall of 22 mm in 9 minutes or just over 2 mm per minute.

The local weather station recorded peak wind gusts of 78 km/h during the peak of the storm.

11 March 2021

Cowra - The town was impacted by a significant event which resulted in 48 mm falling with 29.2 mm falling in 1 hour between 3.30 pm and 4.30 pm.

Wagga Wagga - A rain / storm event saw 27.4 mm of rain fall.

12 March 2021

Goulburn (Gundowringa) (NW of Goulburn) - A rain / storm event saw a fall of 64 mm at this location.

Wingen - For the 24 hours to 9 am, 62 mm of rain fell.

Oberon - For the 24 hours to 9 am, 58 mm of rain fell.

Orange - For the 24 hours to 9 am, 52 mm of rain fell.

Other significant falls include Ben Bullen 55 mm and Newbridge 53 mm.

Southern Sydney - At least two storm cells have impacted the coastal suburbs close to the airport and Cronulla which has seen rainfall totals top 45 mm at Little Bay and 42 mm at Marrickville Golf Club.

Sydney’s Observatory Hill recorded 20 mm of rain between 7.30 pm and 8.10 pm with a total of 25.6 mm falling.

Wallis Lakes (Pacific Palms) on the lower North Coast recorded 104 mm of rain.

The last photo attached to this post is showing one of the storm cells just after sunset looking east.

There have been other similar events across the Hunter Valley, North Coast, North West Slopes and Central Tablelands during this period. Generally only the far west and south west of New South Wales have missed out on this event.

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