Monthly Archives: October 2014

El Reno Tornado Wall Cloud 31st May 2013

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El Reno tornado widest tornado in history
El Reno tornado widest tornado in history

El Reno Tornado lightning - becoming the widest tornado in history.

el_reno_tornado01Was at Dave Croan's place watching a video and we revisited the El Reno tornado! I have not seen much of Dave's footage but I was astounded to see for the first time his footage of the development of a wall cloud to the birth of the El Reno tornado! The time it took is 2 minutes! We watched this developing wall cloud almost from few clouds to rotating wall cloud that dropped a tornado in 2 minutes! This is something both he and I have never observed before - such was the incredible and dangerous dynamics of the day!

Storms and Outbreak in Western Australia 18th to 19th October 2014

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WA vis latest Severe Storm Outbreak 19th October 2014

wa-vis-latest-19th-october-2014

Severe storms in a major part of south Western Australia have occurred over the past 2 days! An intensifying low pressure system developed in the region with several spiral bands of storms producing widespread thunderstorm activity. Storms producing strong winds, hailstones and very heavy rainfall were with warnings over a majority of the region!

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Radar and lightning-severe storms 19th October 2014

East Coast Low 14th to 15th October 2014

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East Coast Low 14th to 15th October 2014 4
East coast low mess radar doppler 14th October 2014

East coast low mess radar doppler 14th October 2014 Prepared by Paul Graham

upper-cold-pool-14th-october-2014 east-coast-low-14th-15th-october-2014A significant rainfall event is expected to develop over eastern NSW during the 14th to 15th October 2014 in response to rapid cooling in the upper atmosphere and onshore winds in the southern part of the low. Rain fall totals may exceed 100mm in regions along the Hunter Coast with pockets of 150mm being predicted. The Hunter region had received very little rain during the past month or so so this would be a case of too much rain too soon and probably will lead to flooding along the coastal parts.

Update: An intense east coast low complete with couplets on doppler radar. Very strong winds were reported from near Wattamolla to Kurnell with winds of the order of 130km/h in one observation! 161km/h from the south! The circulation passed near the Sydney Airport with very heavy rain accompanying the winds as well as cloud to ground lightning! In the Blue Mountains, snow and ice has caused the closure of both the Great Western highway and Bells Line of Road! Temperatures were hovering near and below 0.5C with precipitin most likely snow!

128km Sydney reflectivity radar

See : 128km Radar Loop for Sydney (Terrey Hills), 11:00 13/10/2014 to 11:00 14/10/2014 UTC

64km Sydney reflectivity radar - check out the spiral bands

See : 64km Radar Loop for Sydney (Terrey Hills), 11:00 13/10/2014 to 11:00 14/10/2014 UTC

128km Sydney doppler radar scan

See : 128km Radar Loop for Sydney (Terrey Hills), 11:00 13/10/2014 to 11:00 14/10/2014 UTC

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