Severe Storms Southern Tablelands 4th December 2014

Storm Updafts

Storm Updafts

Storm Updafts and Pileus

Storm Updafts and Pileus

Storm Updafts south of Camden

Storm Updafts south of Camden

Storms developing

Storms developing

With ample moisture still in place, another round of storm activity developed in the western Sydney region and across other parts of NSW to the north. The Southern Tablelands struggled due to a dry air punch coming through reducing the available moisture locally. The first storms developed over the Wollemi National Park and moved towards Bilpin and Richmond. Unfortunately, this effectively cooled the atmosphere and with anvil clouds, there was little chance of recovery. On the same token, a boundary was laid out and moved towards the Southern Tablelands and Appin region. With the sea breeze boundary moving in, a cluster of cumulus developed along this boundary and finally a storm developed rapidly south of Appin. This system also back-built with large towers.

Under storm base and updrafts Hilltop

Under storm base and updrafts Hilltop

Under storm base and updrafts Hilltop

Under storm base and updrafts Hilltop

Storm updraft and inflow into the base - storm split

Storm updraft and inflow into the base - storm split

More storms exploding to the south over the Southern Tablelands

More storms exploding to the south over the Southern Tablelands

Approaching storm base Southern Tablelands near Moss Vale

Approaching storm base Southern Tablelands near Moss Vale

Approaching storm base Southern Tablelands near Moss Vale

Approaching storm base Southern Tablelands near Moss Vale

Storm base last in a line

Storm base last in a line

Further storms consequently developed south of this storm and back built westwards towards Moss Vale and Bundanoon area. It formed a line along this linear zone. Heavy rain and likely hailstones would have developed from these storms. Further storms developed near Muralan and then a squall line followed from the west.

False "tornado" scud from cold outflow

False "tornado" scud from cold outflow

Approaching storm base

Approaching storm base

Thick scud indicative of cold outflow in the hail core

Thick scud indicative of cold outflow in the hail core

New updraft develops behind the storm complex

New updraft develops behind the storm complex

Moisture laden base and hail shafts

Moisture laden base and hail shafts

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