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TC Yasi, Queensland Cyclone Feb 02 onwards

Discussion in 'Weather' started by smitty484, Jan 26, 2011.

  1. trappers

    trappers Safety not guaranteed Moderator Ski Pass: Gold

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    Actually, no. The southern eyewall was about 55km from the Lucinda AWS.
    http://www.bom.gov.au/cyclone/history/yasi-radar.shtml

    Dunk Island which was essentially smack bang in the middle of the eye is 65km from Lucinda point as the crow flies (according to Google) and the eye was about 20-30km wide.
     
    #451 trappers, Feb 5, 2011
    Last edited by a moderator: Nov 18, 2013
  2. Spiceman

    Spiceman Part of the Furniture

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    Ok, I wasn't thinking from Dunk I was thinking from Tully... From Dunk I make it out to be around 68km as far as the crow flies, so I don't have an issue with your calculation, the only thing I will say is that during the cylone Dunk was just inside the southern eyewall and Bingle Bay was almost in the middle... So I reckon 65kms is a fair cop.. I will say thanks for correcting me though, it's a fair point. My main issue is the lack of knowledge of some about how the winds work in a cyclone. I believe firmly that the strongest gusts would have been between Cardwell and Silkwood... As I said on the night, I just wish we had an AWS somewhere to measure the winds... because the strongest winds according to the BOM were within 15 nautical miles of the centre, so within about 28kms of the centre of the eye which would have been slightly less than half way to Lucinda Point but very close to Cardwell which is around 35kms as far as the crow flies and I think that was reflected in the damage between silkwood and Cardwell which seemed to be in that kind of zone to get the strongest winds...

    Outside of that area were the 64knot winds or 118kph, I think that is reflected well in the winds at both Lucinda and even Townsville which had gusts over 130kph... I think this is lost on some people, that the strongest winds are within that 30kms radius of the centre, and unfortunately we don't have measurements recorded in that area....
     
  3. PolePlant

    PolePlant Guest

    FIXED
    New version posted
     
    #453 PolePlant, Feb 6, 2011
    Last edited by a moderator: Nov 18, 2013
  4. tbnext

    tbnext One of Us

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    Im still not sure what most of you mean, lots of dissing of a guy who apparently heads (and has for years) a cyclone building code, lots of speculation and "science" without numbers.

    What do you think the max winds were-who cares but just curious. The sand blasting the paint from the bar at Dunk was certainly impressive.
     
  5. Rush

    Rush Pool Room Ski Pass: Gold

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    For those weather nerds who are interested in tropical cyclone prediction over the decades, try and dig this up:

    Chan, J. C. L. and J. D. Kepert, (Eds.), 2010: Global Perspectives on Tropical Cyclones – From Science to Mitigation. World Scientific Publishing, 444 pp.
     
  6. Vermillion

    Vermillion Pool Room Ski Pass: Gold

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    Any photos from Willis Island? Anything left?
     
  7. Ben Zeenees

    Ben Zeenees One of Us

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  8. Spiceman

    Spiceman Part of the Furniture

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    This one is interesting:

    From: http://www.australiangeographic.com.au/journal/true-force-of-yasi-may-never-be-known.htm
     
    #458 Spiceman, Feb 7, 2011
    Last edited by a moderator: Nov 25, 2013
  9. dawooduck

    dawooduck relaxed and comfortable Ski Pass: Gold

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    Well i finally got an email from my youngest bro ...

     
    #459 dawooduck, Feb 10, 2011
    Last edited by a moderator: Nov 25, 2013