Outlook for average tropical cyclone season for NW Australia

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AussieMark
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Outlook for average tropical cyclone season for NW Australia

#1 Postby AussieMark » Sun Oct 09, 2005 9:11 pm

Outlook for average tropical cyclone season for North West Australia
(issued 10 October 2005)
The Bureau of Meteorology's outlook for the 2005/2006 tropical cyclone season for North West Australia is:

<li>An average season with around five cyclones expected to form off North West Australia.</li>

<li>Around one or two coastal impacts.</li>

<li>Significant risk of at least one severe cyclone coastal impact during the season.</li>

<li>There is a low to moderate risk of a cyclone forming off the North West coast before Christmas.</li>

The Kimberley or adjacent Eighty-mile Beach is the area most likely to be affected should a cyclone form before Christmas.
"At this early stage, it is impossible to predict the likely onset, path or intensity of any individual cyclone that might occur" cautioned Joe Courtney, Severe Weather meteorologist. "So the most important advice that people can receive at this time of year is to be well informed of the dangers posed by cyclones, to understand the warning service, and to be sensibly prepared" said Mr Courtney.

In the next two weeks staff from the Bureau of Meteorology and FESA-State Emergency Services will visit communities in the Pilbara and Kimberley to promote cyclone awareness and preparation initiatives.

The seasonal forecast is primarily based on the El Niño/Southern Oscillation (ENSO) phenomenon which is expected to remain in the neutral phase for this cyclone season. The July-September 3-month mean value of the Southern Oscillation Index (SOI) was -0.7.

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rainstorm

#2 Postby rainstorm » Sun Oct 09, 2005 9:47 pm

what is the average?
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#3 Postby aerojad » Sun Oct 09, 2005 10:31 pm

Around one or two coastal impacts.


Significant risk of at least one severe cyclone coastal impact during the season.



The NHC doesn't even forecast things like this. Is forecasting landfalls there that much easier?
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#4 Postby AussieMark » Thu Oct 13, 2005 4:38 am

rainstorm wrote:what is the average?


in an average season off the North West Australian coast

The northwest Australian coastline between Broome and Exmouth is the most cyclone-prone region of the entire Australian coastline, having the highest frequency of coastal crossings as shown below. On average about five tropical cyclones occur during each tropical cyclone season over the warm ocean waters off the northwest coast between 105 and 125°E. On average about two cyclones cross the coast, one of which is severe. Indeed 34 of the total 42 severe cyclone crossings in Australia between 1970-71 and 2001-02 were in WA. A map of the average annual number of tropical cyclones shows the area off the northwest coast having the highest incidence of cyclones in the southern hemisphere.


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Coastal crossing points between 1970-71 tropical cyclone season and 2001-02 season. Red dots represent severe tropical cyclones (category three or higher) and black dots represent non-severe cyclones (sub-category three).
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#5 Postby AussieMark » Thu Oct 13, 2005 4:41 am

if anyone is interested here are the Ssts around Australia at the moment. With Cyclone season less than a month away the waters are looking warm

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#6 Postby AussieMark » Mon Mar 27, 2006 8:31 am

thought bumping these outlooks may make sense now :lol:
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