Michael Thompson
EF3
It has been an active few days over eastern NSW, storms have been mostly pulse variety however some local conditions have come together at times to still push storms into severe category.
One such day was the 18th November 2007, near 3000 CAPE on the southern tablelands of NSW, close to Canberra, but for the first 10 hours of the day you would not think so with dewpoints pushing down towards single C figures. ( around 50F ).
The first couple of CG's on the clip reflect this drier phase. The change over the next 2 hours was abrupt, a combination of outflow from a thundery mass to the south and a seabreeze front sent dewpoints climbing by 5-6C abruptly, although surface temperatures did fall. It was on that front that a rogue cell developed - the local Bureau suspect a supercell, one other respected chaser with more scientific knowledge than me also suspects a supercell. I am not do sure. Regardless it was some of the heaviest precipitation I have seen. I was handholding the camera and to switch it off to concentrate on driving during the worse.
http://ozthunder.com/video/181107.wmv
The next day the local newspaper of the area carried a story of 150 sheep being swept to their death and drowned on the very same road.
One such day was the 18th November 2007, near 3000 CAPE on the southern tablelands of NSW, close to Canberra, but for the first 10 hours of the day you would not think so with dewpoints pushing down towards single C figures. ( around 50F ).
The first couple of CG's on the clip reflect this drier phase. The change over the next 2 hours was abrupt, a combination of outflow from a thundery mass to the south and a seabreeze front sent dewpoints climbing by 5-6C abruptly, although surface temperatures did fall. It was on that front that a rogue cell developed - the local Bureau suspect a supercell, one other respected chaser with more scientific knowledge than me also suspects a supercell. I am not do sure. Regardless it was some of the heaviest precipitation I have seen. I was handholding the camera and to switch it off to concentrate on driving during the worse.
http://ozthunder.com/video/181107.wmv
The next day the local newspaper of the area carried a story of 150 sheep being swept to their death and drowned on the very same road.