Monthly Archives: September 2014

Sydney Severe Storms Hail and Rain 25th September 2014

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Sydney Severe Storms Hail and Rain 25th September 2014 12

0925jd0170925jd001Temperatures in the western suburbs crept up to the mid-20's which provided more than sufficient heating together with moisture to push up towers ahead of weaker early development.0925jd007 As expected, storms did develop in the Sydney region with a cell rapidly developing to the west of Penrith. The storm intensified and headed generally east towards Blacktown. With a decent base, and a couple of photographs from my place, it was time to reposition for time-lapse opportunity. The storm was organising early on the northern side particularly but gradually developed more of a linear configuration complete with developing shelf cloud. Lightning was frequent at times.0925jd020 0925jd025 0925jd030 0925jd032 As the storm neared, my focus was to position into and ahead of the core. With hailstones falling, I attempted to maintain some positioning with respect to the most intense core. Eventually I was able to observe hail in the order of 1 to 1.5cm in diameter. The storm then made more of an easterly push further east towards the coast. Next stop Central Coast. 0925jd046 0925jd066 0925jd067 0925jd075 0925jd087 0925jd091 0925jd095With storms developing near Newcastle and an isolated cell further west near Putty, I set up near Morisset. From here it took some time for this cell to drift closer with intensification to a black core on radar. More cells developed to the east and southeast of the main core of the storm with spectacular rippled base. The storm hit with gusty winds and heavy rain and perhaps a couple of hailstones. Unfortunately, the storm had moderated somewhat by the time it was within reach. So close but not enough! With a last attempt to head in position to get a cell that had developed near Richmond heading northeast, I re-positioned near Gosford. unfortunately, the cells became embedded in a rain complex. Chase was called off and I returned home.

Update: Here is the video of the event in Sydney at least!

Rain and Storms for Central Queensland 21st to 22nd September 2014

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Rain and Storms for Central Queensland 21st to 22nd September 2014 2

queensland-rain-event--bom-21st-22nd-september-2014 queensland-rain-event-21st-22nd-september-2014Storms are expected in Queensland today with the trough spreading inland. Substantial rainfall can be anticipated with falls of 100mm in some areas. This is one of the most useful rainfall events for some time if it occurs. Storms have already developed in the region as I type.

This event will last over the next two days. Another systems with rain is expected by Thursday.

Severe Storms in Sydney Structured Supercells 16th September 2014

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Severe Storms in Sydney Structured Supercells 16th September 2014 1
Possible supercell near Penrith

Possible supercell near Penrith

Conditions were marginally conducive to severe storms across extreme eastern parts of NSW today. The approach of the upper level system ingested moisture from the northeast during the morning. This set the scene for rapid development of cells as heating increased.

The first storms that developed near Penrith and made a left move ENE into the Sydney basin after initially moving southeast! The storm was severe warned initially.

This storm eventually sheared away from its updraft perhaps being undercut by drier air.

Another more intense and longer lived storm developed near Picton and moved NE. The storm hit the Camden region and weakened dramatically. This was probably the last solid updraft.

Northern Suburbs Cell

Northern Suburbs Cell

Supercell near Picton

Supercell near Picton

 

Supercell Structure Camden 18th September 2014

Supercell Structure Camden 18th September 2014 Benjamin Shepherd took this awesome shot from Spring farm today of a meso and wall cloud. Cracker shot mate! Thanks for sharing. Facebook Comments and Original Source

Sydney radar for this event

See : 128km Radar Loop for Sydney (Terrey Hills), 11:00 15/09/2014 to 11:00 16/09/2014 UTC

Doppler radar images - note the couplet near the Camden area!

See : 128km Radar Loop for Sydney (Terrey Hills), 11:00 15/09/2014 to 11:00 16/09/2014 UTC

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