Re: Waterspout forcasting

Thanks for the article.

One thing that stuck me though was this - in the nomogram of convective cloud depth vs difference in sea and 850 mbar depths they find that the majority of waterspouts occur in an area enclosed by two lines. This leads to the statement "In the area bounded by these curves, conditions are favourable for the development of waterspouts. Outside this area, waterspouts are not likely to occur." Towards the top right of the nomogram I would think that conditions for waterspouts would be ideal, that is a large difference in sea and 850 mbar temps and very deep convective clouds. My feeling is that these conditions are extremely rare (or just never exist) which is why waterspouts were not observed under those conditions.

This method does seem to work well and would be interesting to apply to waterspout events along the east coast of Australia.

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