Monthly Archives: January 2015

Eastern NSW – Four days of weather extremes 25 to 28 January 2015

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Eastern NSW - Four days of weather extremes 25 to 28 January 2015 4

The period 25 to 28 January 2015 will be remembered for a number of weather extremes at either end of the scale across Eastern New South Wales including Sydney.

In particular, no less than 6 or 7 varying weather events have occurred during this period in such a short time. They include:-

1 - A significant morning fog Sunday morning across parts of Western Sydney which for me, is the first time I have seen a major fog occur mid summer in mid January. The fog had burnt off prior to 8 am Sunday.

2 - A hot day across Sydney Sunday. The fog across Penrith quickly burnt off only to have maximum temperatures soar to 36C or 37C across large areas of Sydney on the same day. It is determined that this was the second or third hottest day of the summer depending on suburb or location.

3 - Thunderstorms although isolated in nature just to the north of Sydney during late Sunday.

4 - A southerly buster moving north along the New South Wales South Coast late Sunday which was just strong enough to be classified as a true southerly buster. It brought winds to 61 km/h at Albion Park.

5 - Three days of rain that brought significant rainfalls from the 26 to 28 January as well as unusually cool conditions for Australia Day 26 January and Tuesday 27 January in which temperatures struggled to reach 20C across much of Sydney.

This post will document the extremes of weather for that 4 day period because the variations are significant and remarkable and should be recorded.

I have attached a number of images to this discussion under each weather scenario that occurred.

Storm and Storm Complex North West Slopes and Plains 27th January 2015

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Storm and Storm Complex North West Slopes and Plains 27th January 2015 6

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01274jd10Headed out for a chase with a friend of mine Rodney. We past through a complex of storms near Coolah and experienced a very close bolt within 20 metres striking the ground in the field. Near Mullaley, we were within the warm sector but the outflow boundary was just north of us. One storm developed near Boggabri and intensified after about 20 minutes and moved northeast. We gave chase but without ideal roads, and the storm weakened, we headed northeast further towards Barraba.

01274jd1601274jd29After this storm, it was virtually time to head home. near Willow Tree, we were treated to a spectacular sunset and rainbow.

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Severe Storms Southern Tablelands 24th January 2015

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Severe Storms Southern Tablelands 24th January 2015 1

Began the day heading to Exeter and then after something to eat, headed to Marulan - out target. It only took about 30 minutes before cumulus began to break the cap. After moving around for a good position, we finally settled a few kilometres out of town. The storm broke through one more level and within minutes - lightning. As the storm dumped the lightning increased in frequency. Who came down the road - Michael Thompson! Video was obtained and we exchanged the usual welcome stories. And then a little false excitement - Yep "outfloW! 0124jd55 0124jd66 0124jd10 Contemplating another move, we simply relocated north. The outflow pumped up more storm updafts. Occasional strong bolts increased in frequency as the storm once again cranked up once more. With updrafts surrounding us, and more rain approaching, we headed north once more. Upon approaching Exeter, the back-sheared anvil appeared. For Harley and Colin though, they did not see what I was seeing and simply stood there in astonishment at how crisp and powerful the anvil was! there were a couple of intense cores to the south east and another to the southwest. Sampling the core only yielded the declining storm intensity phase despite the warning being renewed for our area. With anvil heaven, the source of heating diminished right across the region and in the end covered even the Sydney region. Chase over!0124jd05 0124jd27 0124jd38 0124jd58

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