East Coast Low


Since Friday June 3, (now Sunday 5th!) large swathes of the east coast of Australia have been enveloped in storm. We have been experiencing an “East Coast Low” which is the non-tropical equivalent of a cyclone. The image above is a synoptic chart showing the low pressure system from (perhaps) July 2001. From the BoM website: http://www.bom.gov.au/nsw/sevwx/facts/ecl.shtml

The East Coast Low is defined by latitude and the speed with which the air pressure drops. This fairly reliable looking wikipedia entry offers a useful outline: “Australian east coast lows (known locally as east coast lows and sometimes as east coast cyclones) are extratropical cyclones, the most intense of these systems have many of the characteristics of subtropical cyclones. They develop between 25˚ south and 40˚ south and within 5˚ of the Australian coastline, typically during the winter months. Each year there are about ten “significant impact” maritime lows.

What it amounted to here near us was incredible wind, a weekend spent inside. We recently ventured out into the flood waters and found a very high river at low tide.

<p><a href=”https://vimeo.com/169407779″>Cooks River in Flood</a> from <a href=”https://vimeo.com/user3137328″>Jennifer Hamilton</a> on <a href=”https://vimeo.com”>Vimeo</a&gt;.</p>

This is at low tide (0.4m), high tide (at 8pm tonight) will be 2.04m. We might head back out tonight to see how high it gets.

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